Help please. The boys make up 70% of the students in Cedar Grove band. There are 21 boys in the band. How many total students are in the band?
Answer:
30 kids
Step-by-step explanation:
21/30 = .7
.7 is 70% so if there are 30 kids then 70% of that would be 21.
The volume of the sphere is
500
I cubic units.
3
What is the value of x?
4 units
5 units
8 units
. 10 units
Answer:5 Units
Step-by-step explanation: Just the answer
HELP ANSWER THIS I WILL GIVE TEN POINTS AND THANKS!
REMEMBER TO EXPLAIN STEP-BY STEP! AND GET THE CORRECT ANSWER!
The units and tens digits of one-two digit integer are the tens and units digits of another two- digit integer, respectively. If the product of the two integers is 4930, what is their sum?
Answer:
(10t + u)(10u + t) = 4,930
100tu + 10t^2 + 10u^2 + tu = 4,930
101tu + 10t^2 + 10u^2 = 4,930
10t^2 + (101u)t + (10u^2 - 4,930) = 0
(101u)^2 - 4(10)(10u^2 - 4,930)
= 10,201u^2 - 400u^2 + 197,200
= 9,801u^2 + 197,200
We see that u = 5 gives 442,225.
√442,225 = 665
(10t + 5)(50 + t) = 4,930
500t + 10t^2 + 250 + 5t = 4,930
10t^2 + 505t - 4,680 = 0
2t^2 + 101t - 936 = 0
t = (-101 + √(101^2 - 4(2)(-936)))/(2×2)
= (-101 + √17,689)/4
= (-101 + 133)/4 = 32/4 = 8
So the numbers are 58 and 85.
58 + 85 = 143
Help me please il give 20 points!
Answer: 1. a. 15 b. 11 c. 2 d. 7 e. 5.5
2. Stem: Leaf:
1 9
2 5, 9
3 3, 3, 8
4 0, 7, 9
5 4, 5
6 1, 5
7 2, 7
8 1
3. a. 13 inches b. I'm pretty sure that it is the second quarter because there is more snow. c. The first quarter because it's section is more spread out among the numbers.
Step-by-step explanation:
Which of these graphs is the solution set for the equation y = -4?
A number line going from negative 60 to negative 50. An open circle is at negative 54. Everything to the right of the circle is shaded.
Which inequality has the solution set shown on the graph?
-54n < 1080
-54n > 1080
594 > -11n
594 < -11n
Answer:
594 > -11n
Step-by-step explanation:
The solution is
n > -54
Multiply both sides by -11:
-11n < 594
which is the same as
594 > -11n
Answer:The correct answer is 594> -11n (C)
Step-by-step explanation:
I got it right on edge <3 bye lovely
Water boils at 100 degrees celsius or 212 degrees fahrenheit. Water freezes at 0 degrees celsius or 32 degrees fahrenheit. If the weather forecaster says it will be 25 degrees celsius today. write and solve a linear equation to find what fahrenheit temperature this is.
Answer:
given with two conditions: after 0 degrees Celsius, this is equal to 32 degrees Fahrenheit and after at 100 degrees Celsius, this is equal to 212 degrees Fahrenheit . We translate these into points, we have (0,32) and (100, 212). we get the slope of the points ((212-32)/100) or 9/5. we plug to the equation y-y1 = m (x-x1) where m is equal to 9/5. y-32 = 9/5 (x-0). Simplifying, we get y -32 = 9x/5 or equal to y = 9/5 x + 32 where x is degrees Celsius and y is degrees Fahrenheit.
hope this helps
The given temperature is required in Fahrenheit.
The required temperature is 77 degrees Fahrenheit.
Let the x axis denote Celsius
and y axis denote Fahrenheit
The ordered pairs are \((100,212)\) and \((0,32)\)
The equation of the line will be
\(y-212=\dfrac{32-212}{0-100}(x-100)\\\Rightarrow y-212=1.8(x-100)\\\Rightarrow y-212=1.8x-180\\\Rightarrow y=1.8x+32\)
The temperature is 25 degrees Celsius so \(x=25\)
\(y=1.8\times 25+32\\\Rightarrow y=77\)
The required temperature is 77 degrees Fahrenheit.
Learn more:
https://brainly.com/question/11359040
https://brainly.com/question/1462499
Why is my brother soooo annoying? Also if Johnny has 32 bottles of dish soap and he gives 21 to David, how many does Johnny have left?
Answer
he is annoying bc it is him
Step-by-step explanation:
he is weird and stuff
Simplify following the order of operations
( 2 + 6 ) ÷ 2 + 4 × 3
3
24
4
16
Answer: 16
Explanation:
(2+6)÷ 2 + 4 × 3
8÷ 2 + 4 × 3
4 + 4 × 3
4 + 12
16
PLEASE ANSWER ALL QUESTIONS!!! I'LL GIVE 30 PTS TO WHOEVER ANSWERS!! Find the area of each shape. (sorry if it's hard to read)
Answer:
Rectangle's is 28
Step-by-step explanation:
We multiply 9 * 4 to get rectangless shape and then we substract squares (2) shape 2*2*2
(9*4) - (2*2*2)= 28
If you had a coupon for $0.25 off a box of dog treats would this change the answer for which is the better buy? Give an example.
Answer:
I don't understand the question could you explain further
Step-by-step explanation:
diagram shows a track composed of a rectangle with a semicircle on each end. The area of the rectangle is 3,200 square meters. What is the perimeter of the track? Use 3.14 for π.
Roberto evaluated 3/4 ÷ 4/5 and got an answer of 15/16. Which statement is true about his answer? Explain why it's correct or incorrect. (RIGHT ANSWER GETS BRAINLIEST!)
Answer:
Roberto is correct because 15/16 x 4/5 = 3/4.
Roberto's solution to the division problem is correct, but
there are no true statements on your list of choices.
quadratic function with (-2,4) as the vertex and passes through (-4,-4)
Answer:
\(f(x)=-2x^2-8x-4\)
Step-by-step explanation:
Vertex form of quadratic function: \(f(x)=a(x-h)^2+k\)
where \((h,k)\) is the vertex
Given:
vertex = (-2, 4)\(\implies f(x)=a(x+2)^2+4\)
Given:
point on curve = (-4, -4)\(\implies f(-4)=-4\\\\\implies a(-4+2)^2+4=-4\\\\\implies a(-2)^2=-4-4\\\\\implies 4a=-8\\\\\implies a = -2\)
Therefore,
\(f(x)=-2(x+2)^2+4\\\\\implies f(x)=-2(x^2+4x+4)+4\\\\\implies f(x)=-2x^2-8x-8+4\\\\\implies f(x)=-2x^2-8x-4\)
4 + ( 4 X ( 5 - 2)] ÷ 2
4 + [4 × (5 - 2)] ÷ 2
= 4 + [4 × 3] ÷ 2
= 4 + 12 ÷ 2
= 4 + 6
= 10
note : division, multiplication, and parentheses are done before addition or subtraction (except those listed in parentheses)
In the diagram below, lines x and y are parallel
Find the angle measures below.
a) m 2 =
HINT: angles 2 is vertical to a 63 degree angle
Answer:
63°
Step-by-step explanation:
m∠2 = 63° (Vertically Opposite Angles)
Learn more about angles here
Visit —
https://brainly.com/question/1309590
https://brainly.in/question/18979649
Hope my answer helps you ✌️
Mark BRAINLIEST
Answer:you have to write the answer in the flowchart
Step-by-step explanation: then you calculate
Pls help me with this...
Answer:
1.25 is the answer
4 2/3 - m = 1. Thank you for your help!! :)
The equation of a plane which passes through (2,−3,1) and is normal to the line joining the points (3,4,−1) and (2,−1,5) is given by?
Answer: We can find the equation of a plane in point-normal form, which is given by:
Ax + By + Cz + D = 0
where (A, B, C) is the normal vector to the plane and (x, y, z) are the coordinates of any point on the plane, and D is a constant.
To find the normal vector, we can use the cross product of two vectors that lie on the plane. A convenient choice for these vectors is the direction vector of the line, which is given by:
v = <2-3, -1-4, 5-(-1)> = < -1, -5, 6 >
The normal vector to the plane is given by the cross product of the direction vector of the line and the vector pointing from any point on the line to the point (2,-3,1). Let's call this vector v2 = <2-3, -3-4, 1-(-1)> = < -1, -7, 2>
So the normal vector is given by:
n = v x v2 = ( -52 + 6-7)i + (6*-1 - -12)j + (-1-7 - -5*2)k = (14)i + (-7)j + (-11)k
Given that the point (2,-3,1) lies on the plane, we can substitute these values in the point-normal form equation:
A2 + B-3 + C*1 + D = 0
-142 + -7-3 + -11*1 + D = 0
-28 - 21 - 11 + D = 0
D = 58
So the equation of the plane is :
14x - 7y - 11z + 58 = 0
This is the equation that represents the plane that passes through (2,−3,1) and is normal to the line joining the points (3,4,−1) and (2,−1,5)
Step-by-step explanation:
Plumber 1 charges $50 per hour plus a flat fee of $20.
Plumber 2 charges $60 an hour with no additional fee.
Complete the table and write a system of equations to represent the costs, where h is the number of hours and c is the total cost.
Answer:
H: 0, 1, 2, 3, 4, 5
plumber 1: 20, 70, 110, 160, 210, 260
plumber 2: 0, 60, 120, 180, 240, 300
plumber 1: C = 50h + 20
plumber 2: C = 60h
I give u cookie if u answer this
Show your work:
6x + y = 10
12x - 7y = -16
Then
Find the solution and enter your answer as an ordered pair (x, y).
Remember the cookie!
Answer:
(1,4)
Step-by-step explanation:
Step: Solve 6x+y=10 for y:
Step: Substitute the answer for y in 12x−7y=−16:
Step: Substitute that answer "1" for x in y=−6x+10:
Answer:
x = 1 and y = 4 or (1,4)
Answer:
x=1
y=4
Step-by-step explanation:
12x+7y=20+16
12x+2×4=20
Which situation could be represented by the inequality below?
x + $111 > $317
A. A sixth grader wants to raise less than $317 for a fundraiser, and she has already raised $111.
B. A sixth grader wants to raise more than $317 for a fundraiser, and she has already raised $111.
C. A sixth grader wants to raise no more than $317 for a fundraiser, and she spent $111 on t-shirts.
D. A sixth grader wants to raise more than $317 for a fundraiser, and she spent $111 on t-shirts.
I think its C plz tell me if im wrong
Which is the smallest number in this set of numbers?
A. √8
B. 14/5
C. 2.28
D. 2.288
Answer:
B.
Step-by-step explanation:
a = 2.828
b = 2.800
c = 2.288
d = 2.288
Three research departments have 8 ,10 , and 7 members, respectively. Each department is to select a delegate and an alternate to represent the department at a conference. In how many ways can this be done?
We can conclude that exists 211680 ways.
How many ways can this be done?We know that the three research department is have 8, 10, and 7 members.
We choose a delegate and an alternate to represent the department.
First case: department have 8 members.
So, for a delegate, we have 8 options, and for a alternate 7, so a total of
\(8 \times 7 = 56 \ \text{options}\)
Second case: department have 10 members.
So, for a delegate, we have 10 options, and for a alternate 9, so a total of
\(10\times 9 =90 \ \text{options}\)
Third case: department have 7 members.
So, for a delegate, we have 7 options, and for a alternate 6, so a total of
\(7\times6 = 42 \ \text{options}\)
Therefore, we get:
\(56 \times 90 \times 42 = \bold{211680}\)
Hence, we conclude that exists 211680 ways.
For a similar problem about this, please click the link below:
https://brainly.com/question/30958797
Mackey invested some money in an account paying 6% interest for one year. She invested $1000 more than this amount in an account paying 8.5%. How much did she invest in total if the total interest earned in the year was $737.50?
Step-by-step explanation:
Let's assume the amount Mackey initially invested in the 6% account is x dollars.
According to the given information, Mackey invested $1000 more than x in the 8.5% account, which means she invested (x + $1000) dollars in that account.
The total interest earned from the 6% account would be 0.06x dollars, and the total interest earned from the 8.5% account would be 0.085(x + $1000) dollars.
The total interest earned in the year is given as $737.50, so we can set up the equation:
0.06x + 0.085(x + $1000) = $737.50
Simplifying the equation:
0.06x + 0.085x + 0.085($1000) = $737.50
Combining like terms:
0.145x + $85 = $737.50
Subtracting $85 from both sides:
0.145x = $737.50 - $85
0.145x = $652.50
Dividing both sides by 0.145:
x = $652.50 / 0.145
x ≈ $4500
Therefore, Mackey initially invested approximately $4500 in the 6% account, and she invested $1000 more, which means she invested a total of $5500.
$4500
$4500
$4500
$4500
What is the relationship of the 6's in 966?
Answer:
10
Step-by-step explanation:
the 6 9_6 is ten times larger than the 6 96_, and the 6 96_ is 10 times smaller than the 6 9_6.
can you help me plssssss
Find the medium of the following set of data. Round to the nearest 10th if necessary 26.1,8.4,11.4,44.1,32.3,46.41,18.5,20,9.3,19.6
Answer:
19.8
Step-by-step explanation:
You have to first put the numbers into ascending order:
8.4, 9.3, 11.4, 18.5, 19.6, 20, 26.1, 32.3, 44.1, 46.41.
Because there is an even amount of numbers, you end up with 19.6 and 20.
The in between of 19.6 and 20 is 19.8.
(You can work this out by adding the two numbers together and then dividing by two if you have to.)
Find the error(s) and solve the problem correctly.
Sarah was asked to solve the following problem. Identify her errors and explain how to correct her mistakes.
Answer:
\(5x^3-18x^2+2x+21\)
Step-by-step explanation:
In the second step, -9x-21 should be 9x+21. This is because -3 in x-3, and -3x-7 in 5x²-3x-7 are both negative, so each term's product should be positive.
Also, in the third line, she wrote -3x²-15x² as -18x⁴ instead of -18x²,and similarly, she wrote -7x-9x as -16x² (however this is wrong anyway because step 2 was done incorrectly).
If we continued off from the second step with these corrected errors:
\(5x^3-3x^2-7x-15x^2+9x+21\\5x^3-18x^2+2x+21\)
Therefore, the correct simplification is \(5x^3-18x^2+2x+21\).
Answer:
5x^3-18^2 +2x +21
Step-by-step explanation:
What is an equation of the line that passes through the points (2,-5) and (-8,5)
Answer:
y= -x-3
Step-by-step explanation: