If there are 7 girls and 8 boys on the school’s track team, what is the ratio of girls to boys? how would I answer in three different ways.
Answers
Answer:
7:8
7 to 8
7/8
Step-by-step explanation:
Answer:
49:56
7/8
.875
Step-by-step explanation:
Here's 3 different ways
Related Questions
rewrite the expression without absolute value bars
Answers
The expression without absolute value bars is 3.84.
What is an expression?An expression is a way of writing a statement with more than two variables or numbers with operations such as addition, subtraction, multiplication, and division.
Example: 2 + 3x + 4y = 7 is an expression.
We have,
|√10 - 7 |
= | 3.16 - 7 |
= | -3.84 |
= 3.84
Thus,
The value of the expression is 3.84.
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What is the non-negative zero of the function f, where f(1) = 6x^2 – 9x– 6?
NO LINKS PLEASE :)
Answers
Answer:
2
Step-by-step explanation:
6x² - 9x - 6 = 0
Factor
(6x + 3)(x - 2) = 0
x = {-1/2, 2}
non-negative zero = 2
Find the equation of this line. A y = [?] + [ 1 Enter D
![Find the equation of this line. A y = [?] + [ 1 Enter D](https://i5t5.c14.e2-1.dev/h-images-qa/contents/attachments/HY6ZYv1oTTgmJVvNy3hsvpHMZrK2KiW8.jpeg)
Answers
The equation of this line is given by:
y = -1/2x + 1.
What is a linear function?A linear function is modeled by:
y = mx + b
In which:
m is the slope, which is the rate of change, that is, by how much y changes when x changes by 1.b is the y-intercept, which is the value of y when x = 0, and can also be interpreted as the initial value of the function.Given two points, the slope is given by change in y divided by change in x. In this problem, we have points (0,1) and (2,0), hence:
m = (1 - 0)/(0 - 2) = -1/2.
Point (0,1) also means that the y-intercept is of b = 1, hence the equation of this line is given by:
y = -1/2x + 1.
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1.)Solve the following equation by completing the square
2x-3x-28=0
2.) find the sum. (The photo goes with question 2)
Answers
5^2x * 5^3 =5^9 what is x please help
Answers
Answer:
x = 3
Step-by-step explanation:
\( {5}^{2x} \ast {5}^{3} = {5}^{9} \\ {5}^{2x + 3} = {5}^{9} \\ 2x + 3 = 9 \\ (bases \: are \: equal \: so \: exponents \: will \: also \: \\ be \: equal) \\ 2x = 9 - 3 \\ 2x = 6 \\ x = \frac{6}{2} \\ \huge \red { \boxed{x = 3}}\)
6th grade math I mark as brainliest
Answers
Answer:
4,6/5,and the mixed numbers
Step-by-step explanation:
anything smaller than one will make it smaller
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2. There are 30 students in Mrs. Woodward’s class and 1/5 of the class has their own cell phone. Of this group of students, 1/2 of them are allowed to use social media. How many of the students have a cell phone and can use social media?
Answers
Answer:
Step-by-step explanation:
Im guessing but i did 5*___= 30 which is 6 so 6 of his student have their own cell phone, and then the half is 3
Find the number of years necessary for an investment to double at each of these rates of simple interest. Round to the nearest tenth if necessary.
Interest Rate: 11%
Answers
It would take approximately 6.5 years for an investment to double at a simple interest rate of 11%.
According to given information :To find the number of years necessary for an investment to double at a simple interest rate of 11%, we can use the following formula:
n = 72 / r
where n is the number of years required for the investment to double, and r is the interest rate.
Plugging in the values, we get:
n = 72 / 11
n ≈ 6.5 years (rounded to the nearest tenth)
Therefore, it would take approximately 6.5 years for an investment to double at a simple interest rate of 11%.
What is simple interest ?Simple interest is a type of interest that is calculated on the principal amount of a loan or investment. It is a fixed percentage of the original amount borrowed or invested, and it is not compounded over time.
The formula for calculating simple interest is:
I = P * r * t
where I is the interest, P is the principal amount, r is the interest rate, and t is the time period.
For example, if you borrow $1,000 for two years at a simple interest rate of 5%, the interest you would pay is calculated as follows:
I = 1,000 * 0.05 * 2
I = $100
So, you would have to pay back the $1,000 principal plus $100 in interest, for a total of $1,100.
Simple interest is commonly used in short-term loans or investments, and it is usually easier to calculate and understand than compound interest, which takes into account the effect of earning interest on previously earned interest.
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Assume that by contributing your education you increase your yearly earning potential from 21,484 to 39,746 if the additional education cost $36,000 in about many years, will a it pay for itself
Answers
Yes, the additional education costing $36,000 will pay for itself in less than 2 years based on the increased earning potential.
To determine whether the additional education costing $36,000 will pay for itself, we need to consider the time it takes to recover the investment through the increased earning potential.
The additional yearly earning potential is the difference between the post-education income ($39,746) and the pre-education income ($21,484), which is $18,262.
To calculate the payback period, we divide the cost of education ($36,000) by the annual increase in earning potential ($18,262).
Payback Period = Cost of Education / Annual Increase in Earning Potential
Payback Period = $36,000 / $18,262
The payback period is approximately 1.97 years, meaning that it would take approximately 1.97 years to recover the cost of education through the increased earning potential.
If the time required to recover the cost is less than the time in which the increased earning potential will be realized, then the additional education would be considered to have paid for itself.
In this case, since the payback period is less than 2 years and the increased earning potential will continue for subsequent years, it can be concluded that the additional education costing $36,000 will pay for itself over time.
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A customer at a bakery paid $78.30 for donuts and cupcakes. Each donut cost $1.95 and each cupcake cost $2.85. If they bought a total of 30 donuts and cupcakes, how many donuts did they buy?
Answers
Answer:
\( x+y = 30\) (1)
\( 1.95x+ 2.85y = 78.30\) (2)
From equation (1) we can solve for x and we got:
\( x = 30-y\) (3)
Replacing (3) into (2) we got:
\( 1.95(30-y) +2.85 y = 78.30\)
And solving for y we got:
\( 58.5 -1.95 y +2.85 y = 78.30\)
\( 0.9 y = 19.8\)
\( y = 22\)
And then solving for x we got:
\( x = 30-22 = 8\)
So then we have 8 donuts and 22 cupcakes
Step-by-step explanation:
Let x the number of donuts and y the number of cupcakes, from the info given we can set up the following equations:
\( x+y = 30\) (1)
\( 1.95x+ 2.85y = 78.30\) (2)
From equation (1) we can solve for x and we got:
\( x = 30-y\) (3)
Replacing (3) into (2) we got:
\( 1.95(30-y) +2.85 y = 78.30\)
And solving for y we got:
\( 58.5 -1.95 y +2.85 y = 78.30\)
\( 0.9 y = 19.8\)
\( y = 22\)
And then solving for x we got:
\( x = 30-22 = 8\)
So then we have 8 donuts and 22 cupcakes
can someone help me on number 4
Answers
Answer:
\(P = 48 in\),\(A= 120in^2\)
Step-by-step explanation:
Again we can use Pythagorean theorem to find the missing side
x^2 + 15^2 = 17^2
x^2 + 225 = 289
Subtract 225 from both sides
x^2 = 64
Find the square root of both sides
√x^2 = √64
x = 8
So
l = 15in, w = 8in
P=2(15) + 2(8)
P = 30 + 18
P = 48 in
A= 15(8)
A= 120in^2
Find the sample size needed so that a 99.5% confidence interval will have margin of error of 1.5.
Answers
Keep in mind that without the population standard deviation, it is impossible to provide an exact sample size. However, this formula will give you a good starting point.
To find the sample size needed for a 99.5% confidence interval with a margin of error of 1.5, we can use the formula:
n = (Z * σ / E)^2
where n is the sample size, Z is the Z-score corresponding to the desired confidence level, σ is the population standard deviation, and E is the margin of error.
For a 99.5% confidence interval, the Z-score is approximately 2.807 (from a standard normal distribution table). Since we do not have the population standard deviation (σ), we will need to estimate it using a sample standard deviation or use a conservative approach by assuming the maximum possible value. For now, let's assume we have an estimated standard deviation.
n = (2.807 * σ / 1.5)^2
Solve for n by plugging in the estimated standard deviation (σ) and then round up to the nearest whole number, as you cannot have a fraction of a sample.
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What is the
energy of a photon of red light with a wavelength of 6.5 x 10?m?
Answers
Step-by-step explanation:
The wavelength of red light is \(\lambda = 6.5×10^{-7}\:\text{m}.\) The energy E of the photon is given by
\(E = h\nu = \dfrac{hc}{\lambda}\)
\(\:\:\:\:\:= \dfrac{(6.626×10^{-34}\:\text{J-s})(3×10^8\:\text{m/s})}{6.5×10^{-7}\:\text{m}}\)
\(\:\:\:\:\:= 3.058×10^{-19}\:\text{J}\)
A coin is flipped 10 times. What is the probability of getting exactly 4 tails?
Answers
Answer: The probability is approximately 20.51%.
Step-by-step explanation:
4) Express 1697 in Roman figures:
Answers
Answer:
\(\huge{\textbf{\textsf{{\color{skyblue}{An}}{\blue{sw}}{\red{er}}{\color{red}{:}}}}}\)
1697 ➳ MDCXCVII
Answer:
MDCXCVII
Step-by-step explanation:
what is found on pages starting with the letter g
Answers
Answer:
gay
Step-by-step explanation:
i mean it starts with a g doesnt it?
Answer:
google?
Step-by-step explanation:
There are can be can be many things found on the pages starting with the letter g.
A stockbroker estimates that at the end of the year, there is a 40% chance a stock will be worth $50,
a 35% chance it will be worth $60 and a 25% chance it will be worth $70. What expected value
does this broker assign to this stock's end-of-the-year price?
Answers
The expected value that this broker assign to this stock's end-of-the-year price is $58.50.
Using this formula
Expected value=Stock worth at $50+ Stock worth at $60+ Stock worth at $70
Where:
Stock worth at $50=40% chance
Stock worth at $60=35% chance
Stock worth at $70=25% chance
Let plug in the formula
Expected value=(40%×$50)+($35%×$60)+($25%×$70)
Expected value=$20+$21+$17.5
Expected value=$58.50
Inconclusion the expected value that this broker assign to this stock's end-of-the-year price is $58.50.
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Find the length of a rectangular lot with a perimeter of 82 meters if the length is 5 meters more than the width
A. 41m
B. 38m
C. 23m
D. 46m
Answers
Answer:
23m
Step-by-step explanation:
Reduce to Standard form : (a) -21/91 (b) 32/(-256)
Answers
Answer:
a) -3/13
b) -1/8
Step-by-step explanation:
a) - (21 / 7) / (91 / 7) = 3/13
b) (32 / 32 ) / - (256 / 32) = -1/8
Whoever answers correct gets brainliest
This is Arithmetic sequence explicit formula
d(n)=6−4(n−1)
Find the 5th term in the sequence
Answers
Answer:
5th term = - 10
Step-by-step explanation:
5th term
Here,
n = 5
d ( n ) = 6 - 4 ( n - 1 )
d ( 5 ) = 6 - 4 ( 5 - 1 )
= 6 - 4 ( 4 )
= 6 - 16
d ( 5 ) = - 10
How much commission will George receive for the sale of a $250,000 home if he receives 2 1/2% of the selling price?
Answers
Answer:
625,000
Step-by-step explanation:
250,000 * 5/2 = 625,000
The commission that George will receive for the sale of a \(\$\)250,000, if he receives 2 1/2% of the selling price is $6,250.
What is commission?"A commission is a piece of work that someone is asked to do and is paid for."
Sale is \(\$\)250,000
Converting 2 1/2% in improper fraction is 5/2 %
So, commission will be \(\(2.5*250,000 /100\) = 625,000/100 = 6250
Hence, the commission that George will receive is $6,250.
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If Jason makes $12 an hour on his new job, how many hours must he work to make the money to afford to buy some shoes that cost $160 at
the local store?
Answers
Answer:
14 hours
Step-by-step explanation:
Jason get 12 dollars and hour so if you do 12×14 you get 168. the awnser wouldn't be 13 because 12×13 equals 157 which isn't enough.
hope this helps
Set A contains 17 elements, set B contains 16 elements, and 13 elements are common to sets A and B. How many
elements are in AUB?
The number of elements in AUB is
Answers
The number of elements that are in AUB is 20
How to determine the number of elements that are in AUB?From the question, we have the following parameters that can be used in our computation:
Set A contains 17 elementsSet B contains 16 elements13 elements are common to sets A and BThe number of elements that are in AUB is calculated as
A u B = A + B - Common elements
substitute the known values in the above equation, so, we have the following representation
A u B = 17 + 16 - 13
Evaluate
A u B = 20
Hence, the number of elements that are in AUB is 20
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High School Geometry
Answers
The measure of major arc FGH is 238°.
Since there are opposite angles in this cyclic quadrilateral, 21x-2 and 38x+5 are supplementary.
21x - 2 + 38x + 5 = 180
59x + 3 = 180
59x = 180 - 3
59x = 177
x = 177/59
x = 3
Add 3 to the angle A
(38 * 3) + 5
= 114 + 5
= 119
If Angle G's intercepted arc is represented by HA, The size of Angle G is twice that of Arc HA.
m arc \(FGH\) = m∠FOH
= 2 * (38x + 5)
= 2 * (38*3 + 5)
= 2 * (114 + 5)
= 2 * 119
= 238
Thus option e) 238° is the correct response.
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7. What is the y-intercept for the equation 5x-2y = -4?
о
(0,-2)
(0,2)
(0, -1/3)
(0,4/5)
Answers
Answer:
(0, 2)
Step-by-step explanation:
The given figure is a right triangular prism.
In the prism:
• DF = 22 in.
• EG = 11 in.
• Volume of the prism = 1936 cubic in.
What is the length of AD?'
Use the given information to complete the worksheet.
Thank you!
Answers
The length of side AD is,
⇒ AD = 16
We have to given that;
The given figure is a right triangular prism.
In the prism:
• DF = 22 in.
• EG = 11 in.
• Volume of the prism = 1936 cubic in.
Since, Volume of right triangular prism is,
V = 1/2 (bh) x L
Substitute all the values we get;
V = 1/2 (22 × 11) × AD
1936 = 121 × AD
AD = 16
Thus, The length of side AD is, 16
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Find the value of x. Round your answer to the nearest tenth.
Answers
Answer:
Step-by-step explanation:
9. sin 18 = x/21
x = 21* sin 18
x = 6.5
10. tan 55 = 29/x
x* tan 55 = 29
x = 29/tan 55
x = 20.3
11. sin 23 = x/25
x = 25 * sin 23
x = 9.8
12. sin 47 = 33/x
x * sin 47 = 33
x = 33/sin 47
x = 45.1
Find the area of the shaded region below.
12 cm
<
8 cm
3 cm
5 cm
Answers
Answer:
36 cm^2
Step-by-step explanation:
One rectangle is "framed" within another. Find the area of the shaded region if the "frame" is 3 units wide.
Answers
The area of the shaded region, with a frame of 3 units wide, is 264 square units. The inner rectangle is 6x4 units, and the outer rectangle is 18x16 units.
To solve the given problem, we have to find the area of the shaded region if the frame is 3 units wide. If the frame is 3 units wide, then the dimensions of the inner rectangle (the shaded region) will be (12 - 6) × (10 - 6) which simplifies to 6 × 4.
Therefore, we can say that the inner rectangle has a length of 6 units and a width of 4 units.The dimensions of the outer rectangle are (12 + 3 + 3) × (10 + 3 + 3) which simplifies to 18 × 16. Therefore, we can say that the outer rectangle has a length of 18 units and a width of 16 units.
The area of the shaded region can be obtained by subtracting the area of the inner rectangle from the area of the outer rectangle. Therefore, the Area of the outer rectangle = length × width= 18 × 16 = 288 square units
Area of the inner rectangle = length × width= 6 × 4 = 24 square units
Area of the shaded region = Area of the outer rectangle - Area of the inner rectangle = 288 - 24= 264 square units
Therefore, the area of the shaded region is 264 square units.
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Is the square root of 14 +6.2 less than 3 pi - 8.2?
Answers
Answer:
No. √14 + 6.2 is more than 3π - 8.2
Step-by-step explanation:
√14 + 6.2
√20.2
≈ 4.494
π ≈ 3.14159
3(3.14159) - 8.2
9.42577 - 8.2
1.22477
Therefore, the answer is no.