Answer:
x = 5
Step-by-step explanation:
-3 * (x-3) = -6
3x+9 = -6 (divide by 3)
-x + 3 = -2 (minus 3)
-x = -5 (multiply by -1)
x = 5
Answer & Step-by-step explanation:
Jenny is making jewelry craft kits. She purchases 3 bags of each color band. She divides the total number of bands equally into 4 kits. How many bands are in each kit?
Answer:
12
Step-by-step explanation:
Given:
3 bags of each color band
4 kits
To "divide equally" we need the greatest number that divides the two numbers 3 and 4 equally.
Find the greatest common factor of 3 and 4:
factors of 3 = 1,3,6,9,12,15,18,21,24....
factors of 4 = 1,2,4,8,12,16,20,24...
How many bands are in each kit?
12 or any other number that is a factor of both 3 and 4 such as 24,..etc.
Complete an equation in slope-intercept form for the line that passes through (6, 5) and is parallel to the line x + 3y = 9.
The slope-intercept form is y = -1/3x +7 .
What is an explanation of the slope-intercept form?
A line's equation can be written in the slope-intercept form so that the slope (steepness) and y-intercept (where the line crosses the vertical y-axis) are immediately visible. This form is frequently known as the y = mx + b form.The standard form equation can be found by using the given point values in the given equation to find the new constant.
x +3y = (6) +3(5) = 21
Solving for y puts this equation into slope-intercept form.
3y = -x +21 . . . . . . . subtract x
y = -1/3x +7 . . . . . . divide by 3.
This is slope-intercept form.
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please help! will give brainliest
Answer:
Step-by-step explanation:
803.8 in
12
What is the average temperature in the polar zones?
OA. 10°C
OB. 5C
Oc. 0°C
OD. 5c
OE.
10°C
Answer:
Step-by-step explanation:
A charge of 5C
is placed at the curve of a spherical gaussian of radius 5cm
the electric flux through the surface is 1ε0
convert this denary number 33 to a binary number
Answer: 100001
Step-by-step explanation: The trick for binary is that it only uses 1 & 0 for its number system. It goes by a system where you take 1 and multiply by 2, then you multiply 2 by 2, and so forth. So 33 has one 32, and one 1.
A distribution of scores on a driver's license test forms is normally shaped. This is an example of a symmetrical distribution. True False
A distribution of scores on a driver's license test forms is normally shaped. This is an example of a symmetrical distribution is TRUE.
A symmetrical distribution is a distribution where there is an equal number of data points on both sides of the center point, in which the mean, mode, and median of a data set are all similar.
A normal distribution is a bell-shaped distribution that is symmetrical, with most of the data falling near the mean and progressively less toward the tails. When data are symmetrical, the mean and median values are similar, and the standard deviation can be used to compute the proportions of data within a range of values surrounding the mean.
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find the conditional probability of the indicated event when two fair dice (one red and one green) are rolled. hint [see example 1.] the sum is 4, given that the green one is either 3 or 2.
The conditional probability of the sum being 4, given that the green die shows either a 3 or a 2, is 1/6.
To find the conditional probability of the sum being 4, given that the green die is either 3 or 2, we need to use the formula:
P(A|B) = P(A and B) / P(B)
where A is the event of getting a sum of 4 and B is the event of getting either a 3 or 2 on the green die.
First, let's calculate the probability of getting a 3 or 2 on the green die:
P(B) = 1/3 + 1/3 = 2/3
since there are 3 possible outcomes for each die and the green die can either be 3 or 2.
Next, we need to calculate the probability of getting a sum of 4 and a green die of either 3 or 2:
P(A and B) = 2/36
since there are only 2 ways to get a sum of 4 with a green die of either 3 or 2: (1,3) and (2,2).
Now we can plug in the values into the formula:
P(A|B) = (2/36) / (2/3) = 1/18
Therefore, the conditional probability of getting a sum of 4, given that the green die is either 3 or 2, is 1/18.
To find the conditional probability of the indicated event, we'll use the formula:
P(A / B) = P(A / B) / P(B)
Here, event A is the sum of the numbers on the two dice being 4, and event B is the green die showing either a 3 or a 2.
First, let's find P(B). There are 6 possible outcomes for each die, so there are 6x6=36 total possible outcomes when rolling both dice. There are 2 favorable outcomes for event B: the green die showing a 3 or a 2. Therefore, P(B) = 2/6 = 1/3.
Now, let's find P(A / B). This is the probability of both events A and B happening at the same time. For the sum to be 4 and the green die to show a 2, the red die must show a 2. For the sum to be 4 and the green die to show a 3, the red die must show a 1. There are 2 favorable outcomes for P(A /B) out of the 36 possible outcomes. Therefore, P(A ∩ B) = 2/36 = 1/18.
Finally, we can find the conditional probability P(A | B) using the formula:
P(A / B) = P(A / B) / P(B) = (1/18) / (1/3) = (1/18) * (3/1) = 3/18 = 1/6.
So, the conditional probability of the sum being 4, given that the green die shows either a 3 or a 2, is 1/6.
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Today, everything at a store is on sale. The store offers a 20% discount.If the regular price of an item is x dollars, what is the discount price in dollars? Type the correct expression in the box below.
Answer:
0.80x dolllars
Step-by-step explanation:
20% discount of the total amount is
0.20 * x dolllars
So if you start with x dollars you need to subtract the discount to get the new (lower ) price.
x - (0.20 * x) dolllars
1* x - 0.20 * x
x * 1 - 0.20 * x
x * ( 1 - 0.20 )
x * ( 0.80 )
0.80x dolllars
Write the quadratic equation in general form.
40x² = 30
The solution of the equation is x = \(\frac{\sqrt{3} }{2}\) and - \(\frac{\sqrt{3} }{2}\).
Now, According to the question:
What is Quadratic Equation?
The polynomial equation whose highest degree is two is called a quadratic equation or sometimes just quadratics. It is expressed in the form of:
ax² + bx + c = 0
where x is the unknown variable and a, b and c are the constant terms.
The given equation is :
40x² = 30
40x² - 30 =0
Common factor:
10(4x²- 3) = 0
Divide both sides by the same factor
10(4x²- 3) = 0
4x²- 3 = 0
Use the quadratic formula:
x = -b±\(\sqrt{b^2-4ac}\)/ 2a
Once in standard form, identify a, b and c from the original equation and plug them into the quadratic formula:
4x²- 3 = 0
a = 4
b = 0
c = -3
x = -0±\(\sqrt{0^2-4(4)(-3)}\)/ 2(4)
By simplify:
x = ±\(\frac{4\sqrt{3} }{8}\)
To solve for the unknown variable, separate into two equations: one with a plus and the other with a minus.
x = \(\frac{4\sqrt{3} }{8}\)
x = -\(\frac{4\sqrt{3} }{8}\)
Rearrange and isolate the variable to find each solution
x = \(\frac{\sqrt{3} }{2}\) and - \(\frac{\sqrt{3} }{2}\)
Hence, The solution of the equation is x = \(\frac{\sqrt{3} }{2}\) and - \(\frac{\sqrt{3} }{2}\).
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Factor completely:
7r^2− 64r + 64
Answer:
7r^2-64r+64
49r-64r+64
-15r+64
Step-by-step explanation:
the mean sustained wind velocity, v, can be determined by the equation , where p is the air pressure, in millibars, at the center of the hurricane. what is the approximate air pressure at the center of a hurricane when the mean sustained wind velocity is 64 meters per second? 103 millibars
The approximate air pressure at the center of a hurricane is 910 millibars.
Given,
The mean sustained wind velocity equation, v = 6.3 × √(1013 - p)
p is the air pressure in millibars
The mean sustained wind velocity - 64 meters per second.
We have to find the approximate air pressure.
Here,
The equation for wind velocity ;
v = 6.3 × √(1013 - p)
v is given 64
Then substitute;
64 = 6.3 × √1013 - p
64/6.3 = √1013 - p
10.16 = √1013 - p
Square both sides
(10.16)² = (√1013 - p)²
We get,
103.23 = 1013 - p
p = 1013 - 103.33 = 909.67 ≈ 910 millibars
That is,
The approximate air pressure at the center of a hurricane is 910 millibars.
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To rent a machine for 6 hours, it costs $27. How much will it cost to rent it
for 3 hours?
Answer:
$18.5
Step-by-step explanation:
6 divided by 3 = 2
27 divided by 2 = 18.5
Select the graph that best represents the solution set of the system of linear inequalities
It’s Due today pls help out
There are 7 girls to every 5 boys. If there are 84 students in all, how many are boys?
\(\frac{-9}{5}+ \frac{7}{2}\)
Answer:
exact form: 17/10
decimal form: 1.7
mixed number form: 1 7/10
Step-by-step explanation:
(24x3 − 14x2 + 20x + 6) ÷ (4x2 − 3x + 5) = Q +
R
4x2 − 3x + 5
Q =
R =
Answer:
Step-by-step explanation:
Dividend = 24x³ - 14x² + 20x + 6
Beginning with the production of csf in the lateral ventricles and the eventual emptying of the csf into the superior sagittal sinus, place the following statements in the right sequence
Beginning with the production of CSF in the lateral ventricles, the CSF moves into the third ventricle via the intraventricular foramen.
What is CSF?
Cerebrospinal fluid is a white, transparent fluid that is filled in the cavity of brain and spinal cord.
The flow of CSF starts from choroid plexus, then it flows to the lateral ventricle, and to the interventricular foramen of Monro, the third ventricle.
Thus, the correct option is D, the CSF moves into the third ventricle via the intraventricular foramen.
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A clinical specimen is received in viral transport medium for viral isolation. The specimen cannot be processed for till the following week. At what temperature should the specimen be stored
To ensure the preservation of the clinical specimen for viral isolation, it should be stored at a specific temperature. The recommended temperature for storing the specimen is generally between 2 to 8 degrees Celsius (36 to 46 degrees Fahrenheit).
Storing the clinical specimen in viral transport medium at a temperature range of 2 to 8 degrees Celsius (36 to 46 degrees Fahrenheit) is commonly advised for preserving the viability of the virus. This temperature range helps to slow down the viral activity and prevents the specimen from deteriorating while awaiting processing. It provides an environment that can maintain the integrity of the viral particles until laboratory procedures can be carried out the following week. It's important to follow the recommended storage temperature to ensure accurate results and successful viral isolation from the specimen.
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In a cla of 70 tudent there are 10 more girl than boy. What i the ratio of the number of boy to the number of girl?
35 to 35
30 to 37
3 to 4
6 to 8
The required ratio of the number of boy to the number of girl is 3/4.
What is Ratio?A ratio is a method for showing a relationship or look at two quantities of a similar kind. We use proportions to think about things of a similar kind. For instance, we might utilize a proportion to contrast the quantity of young men with the quantity of young ladies in your study hall.
According to question:Let us consider number of boys is x and that of girls is y.
x + y = 70 ------------------------(1)
And
y = x + 10
Put the value of y in eq(1),we get
x + x + 10 = 70
2x = 60
x = 30
So, the number of boys are 30, then girls are 30 + 10 = 40
Now, the ratio of the number of boy to the number of girl is
x/y = 30/40 = 3/4
Thus, ratio is 3/4.
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Ella needed to get her computer fixed. She took it to the repair store. The technician at the store worked on the computer for 3 hours and charged her $61 for parts. The total was $226. Write and solve an equation which can be used to determine x, the cost of the labor per hour.
Answer:
x = 55
Step-by-step explanation:
61+3×X=226
61+3x=226-61
3x=165
x= 165/3
x= 55
2. Amy was asked to find mABC in the picture. Her work is shown below.
The alternate interior angles are congruent when the lines
are paralled so
mLABC-3(27)-47
-81-47
-34°
30-47-n+7
-47
+47
3n-+54
-n-h
20-54
2
n=27
Explain Amy's mistake
A
(3n-47)
(n+7)
B
D
Show all work to find the correct mABC.
Amy's mistake was she took the angles as alternate interior angles, rather they form supplementary angles. The measure of both angles are 118 and 62.
What are alternate interior angles?The alternate interior angles theorem states that if a transversal connects two parallel lines, the alternate interior angles are identical in size. If we know the measure of the corresponding alternate interior angle, we may use this theorem to determine the measure of the alternate interior angle.
As per the given question,
both angles are not alternate interior angles,
rather both of the angles are supplementary angles.
This means that both form the sum of 180
⇒ 3n - 47 + n + 7 = 180
⇒ 4n - 40 = 180
⇒ 4n = 220
⇒ n = 55
∴ The measure of both angles will be 3n - 47 = 118 and n + 7 = 62
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NEED HELP ASAP!!!!!!!!!!!!!!!!!
Answer:
Side length of AC = 4.6
Step-by-step explanation:
sin (33°) = 2.5 / AC
AC = 25 / sin (33°)
AC = 4.59
Final answer of AC rounded to the nearest tenths is , AC = 4.6
The mean mass of five men is 76 kg. The masses of four of the men are 72 kg, 74 kg, 75 kg and 81 kg. What is the mass of the fifth man
Answer:
78kg
Step-by-step explanation:
76×5= 380kg
380-72-74-75-81= 78kg
Complete the equation so that it has no solution 9(x-4)-5x=
Answer:
9(x-4)-5x=
open brackets
9x-36-5x=0
relate with similar expressions
note,when negative crosses the equal sign,it becomes positive
9x-5x=36
4x=36
x=9
Help meeeeeeeeeeeeee
Answer:
36.87( round if needed(
Step-by-step explanation:
we know a side adjacent to the angle and opposite of the angle so we apply tangent function
\( \tan(x) = \frac{3}{4} \)
\( \tan {}^{ - 1} ( \frac{3}{4} ) = 36.87\)
Round if neededd
Robert is making a photo album. 12 photos fit on a page. How many pages will he need for 432 photos?
Answer:
12 photos fit on page = 1
432 photos fit on page = 432/12
= 36 pages
Step-by-step explanation:
If you like my answer than please mark me brainliest thanks
Answer:
36 pages
Step-by-step explanation:
There are 12 photos per page, and Robert has 432 photos. So, we can divide the number of photos he has by the number of photos that fits on each page. By doing so, you'll calculate the number of pages he needs. This calculation is shown below:
\(\frac{432 \ photos}{1} *\frac{1 \ page}{12 \ photos} = 36 \ pages\)
You can see that the units for photos cancel out, resulting in units for pages.
So, Robert will need 36 pages in order to fit all 432 photos into his photo album.
one eighth plus four sixths
I give crown please
\(\begin{gathered} \boxed{ \sf\frac{1}{8} + \frac{4}{6} }= \\ \\ \boxed{ \sf\frac{24 \div 8 \times 1 + 24 \div 6 \times 4}{24}} = \\ \\ \boxed{\ \sf \frac{3 +16 }{24} }= \\ \\ \boxed{ \sf \frac{19}{24} }\end{gathered}\)Explanation:
Heterogeneous fractions are fractions that have different denominators.
To add heterogeneous fractions, we must first find the common denominator. This is the least common multiple (LCM) of the denominators.
Then, we must multiply the common denominator by the original denominator and multiply by the numerator.
Then, we write as numerators the results obtained previously with the sign of the sum between them.
Finally, we add the numerators and simplify the result if possible.
The Alpha.Answer:
19/24
Step-by-step explanation:
(1/8) + (4/6)
To add fractions, the denominators must be equal. To achieve this, we can multiply the numerator and denominator by a number for each fraction for each fraction's denominator to match.
1/8 = 1/8 * 3/3 = 3/24
4/6 = 4/6 * 4/4 = 16/24
(3/24) + (16/24) = 19/24
What is the Estimating Root of 770? Like what is the square root of 770 in between.
Answer:
Step-by-step explanation:
square root of 770 is 27.748873851
in between would be.... square root of 25= 5
square root of 36= 6
2 questions only, please help :)
Answer:
yesno, 2y-x = -16Step-by-step explanation:
standard form is:
Ax+By=C
for problem 2:
y= 1/2 x-8
y- 1/2 x - 8= 0
rearrange:
- 1/2x + y +8 = 0
2 (- 1/2x + y + 8) = 0
-x + 2y + 16= 0
-x + 2y = -16
leading coefficient can't be negative
so multiply everything by -1
x -2y = 16
Answer:
1 yes no
Step-by-step explanation:
1 this is in standard form as it is a linear form and the intercepts can be found
2 This is not in standard form as it is a linear equation and both the x and y intercepts cant be found so must be written in the form AX+BY=C
so
-x + 2y = -6
and leading coefficient cant be - so multiply by -1
so
x-2y=6
Image below !!!!!!!!
Answer:
²
Step-by-step explanation:
6.7 × 10²
6.7×100
670
√100 = 10²