You are given the difference of the numbers of boys and girls in a class and the ratio of boys to girls. How many boys and how many girls are in the class?
3 more boys; 5 for every 4
Answers
By using the given ratio, we will see that there are 15 boys and 12 girls.
How we can find the number of boys and girls in the class?
The given information is:
There are 3 more boys.There are 5 boys for every 4 girls.Now, notice that in the ratio we have a difference of 1 boy, so if we want to have a difference of 3 boys, we must multiplicate it by 3, then we get:
3*15 boys for every 3*4 girls (remember that you can multiply both quantities on the ratio and it does not change).
15 boys for every 12 girls.
Now the difference is 3.
15 - 12 = 3
So we can conclude that there are 15 boys and 12 girls.
If you want to learn more about ratios, you can read:
https://brainly.com/question/1781657
Related Questions
What is the value of 4)1/8 divided by 5)1/2
Answers
Answer:
I'm assuming that you meant to type: The question is x/5=1/2+1/8 ; X= ?
If so, we're solving for x.
x/5 = 1/2 + 1/8
2 is a factor of 8, so let's start with common denominators.
x/5 = 1/2 *(4/4) + 1/8
x/5 = 4/8 + 1/8
x/5 = 5/8 As long as we just need to know the value of x, let's use inverse operations.
x/5 *5 = 5/8 *5
x = 25/8 or 3.125
8.00 as a fraction in its simplest form
Answers
Answer:
4/5
Step-by-step explanation:
8.00= 8= 8/10=4/5
=^=
A cylinder has a height of 5 feet and a radius of 2 ft.
If a scale model of the cylinder is scaled up by a factor of 3, what is the surface area of the model?
756.20 ft.
791.68 ft.
832.05 ft.
865.28 ft.2
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Answer:791.68
Step-by-step explanation:
2*pi*6^2 + 15 *pi * 12 = 791.68
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Answer:
Step-by-step explanation:
Answer:
Just explained a while ago
Step-by-step explanation:
Angle a =
126
What is the measure of angle b? Explain how you calculated your answer.
Angle a=
126° Write an equation(s) in terms of b to find the measure of angle h.
Calculate the measure of angle h, using the equation(s) you wrote for Part B.
How would knowing the measure of angle y change the equation(s) you wrote in Part B to find the measure of angle h?
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Answer:
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Answers
(please give thanks)
Answer:
35x+21b
Step-by-step explanation:
(3b+5x)7
Use the distributive property to multiply 3b+5x by 7.
21b+35x
Reverse terms to the left.
35x+21b
Graph for reference:
2/3 x 6 + 2/3 x 1
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Answer:
5 and 1/9
Step-by-step explanation:
(2/3 × 6) + (2/3 × 1 and 2/3)
4 + 1 and 1/9 = 5 and 1/9
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What is the equation of the line that has a slope of 4 and passes through the point (4,1)
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Answer:
B
Step-by-step explanation:
y-y1=m(x-x1)
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estimate to find the quotient if 823 divided by 23
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Answer:
Step-by-step explanation:
35.7826087
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60
Step-by-step explanation:
4w2 + 3w - 1
5w - 2
Area
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Answer:
<math xmlns="http://www.w3.org/1998/Math/MathML" display="block">
<mrow>
<mi>w</mi>
</mrow>
<mrow>
<mn>2</mn>
</mrow>
<mo>=</mo>
<mo>−</mo>
<mrow>
<mn>5</mn>
</mrow>
<mfrac>
<mrow>
<mi>w</mi>
</mrow>
<mrow>
<mn>4</mn>
</mrow>
</mfrac>
<mo>+</mo>
<mfrac>
<mrow>
<mn>1</mn>
</mrow>
<mrow>
<mn>2</mn>
</mrow>
</mfrac>
</math>
Step-by-step explanation:
que alguien me ayude cuanto hace q yo sali de escuela
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Answer:
a=20 m²
b=21 cm²
c=36 dm²
Step-by-step explanation:
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144+256=a²
400=a²
√400=a
a=20
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784+b²=1225
b²=1225-784
b²=441
b=√441
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Pls help 30 points 7th grade math
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explain how to solve. g ÷ 4 = 24
Answers
[tex]Your[/tex] [tex]answer[/tex] [tex]would[/tex] [tex]be.[/tex]
[tex]g/4 = 24 // - 24\\g/4-24 = 0\\1/4*g-24 = 0 // + 24\\1/4*g = 24 // : 1/4\\\g = 24/1/4\\g = 96\\g = 96[/tex]
[tex]- Yaoii[/tex]
Answer:
g = 96
Step-by-step explanation:
Rewrite : g ÷ 4 = 24
Write the division as a fraction : 1/4g = 24
Multiply both sides : 1/4g = 24
Multiply both sides of the eqaution by 4 :
g = 96
Final answer g = 96
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Domain:
Range:
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Answer:
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Step-by-step explanation:
Phone calls to New York are charged at the rate of £2.90 for a 5-minute call. John’s call costs £7.86. How long (in minutes) was his call?
Answers
Answer:
Step-by-step explanation:
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Answers
Answer:
The answer is....
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Please give Brainly
Step-by-step explanation:
Answer:
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yes
Step-by-step explanation:
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i dont know maybe
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idc
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Step-by-step explanation:
Answer:
5/5 or 1 whole
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Which of the following explains the role of Pi (1) in finding the circumference of a circle?
А
Pi is the ratio of the radius of a circle to the diameter of a circle.
B
Pi is the ratio of the radius of a circle to the circumference of a circle.
С
Pi is the ratio of the diameter of a circle to the circumference of a circle.
D
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Answers
sum is an answer to an addition problem, so we have to add 43 and z. z+43=72.98
Subtract 43 on both sides.
z=29.98
---
hope it helps
Answer:
43 + z = 72.98
Step-by-step explanation:
Sum meaning add the two (or more numbers together) we get 43+ z = 72.98
If you're trying to find "z" simply subtract 43 from 72.98 to get 29.98 as z
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Answers
9514 1404 393
Answer:
a = 3b = 4c = 2d = 1Step-by-step explanation:
There are zeros at x=-1 and x=4, so numerator factors of (x +1) and (x -4).
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Step-by-step explanation:
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Answer:
472.5
Hope this helps