All categories

3 years ago

The ratio of boys to girls is 7:12 if there are 76 children how many are girls?

Mathematics

2 answers:

prisoha [69]3 years ago

6 0

Answer:

The girls are 48 in number

Step-by-step explanation:

The question states that the ratio of boys to girls is 7 : 12, there are 76 children, we are to find the number of girls.

To find the number of girls, we are to follow the steps below;

Boys : Girls

7 : 12

We take the ration number of girl which is 12 over the total ratio number then we multiply by 76.

The total ratio number = 7 + 12 = 19

That is;

Number of girls = $\frac{12}{19}$ × 76

= $\frac{912}{19}$

=48

Therefore there are 48 number of girls

Vikentia [17]3 years ago

3 0

12 girls out of 19, how many out of 76

12 - x
19 - 76

Cross product:

19x= 1152
/19. /19
x= ~61

There are (around) 61 girls

You might be interested in

Consider the equation y = -2x + 5. Create a table of five ordered pairs that satisfy the equation. What is the y-intercept of th

Tatiana [17]

Answer: option d.

Step-by-step explanation:

To create a table of five ordered pairs that satisfy the equation, you need to give values to the variable "x" and substitute these into the function to find the corresponding value of "y":

For $x=-2$

$y = -2(-2) + 5=9$

For $x=-1$

$y = -2(-1) + 5=7$

For $x=0$

$y = -2(0) + 5=5$

For $x=1$

$y = -2(1) + 5=3$

For $x=2$

$y = -2(2) + 5=1$

Then, you can make the table:

x -2 -1 0 1 2

y 9 7 5 3 1

To find the x-intercept, substitute $y=0$ into the function and solve for "x". Then:

$0 = -2x + 5\\\\x=\frac{-5}{-2}\\\\x=\frac{5}2}$

This is: ( $\frac{5}{2}$ , 0)

To find the y-intercept, substitute $x=0$ into the function and solve for "y". Then:

$y= -2(0) + 5\\\\y=5$

This is: (0,5)

6 0

3 years ago

Read 2 more answers

Can someone please help me please

ExtremeBDS [4]

a straight horizontal line is 180 degrees

box in the middle means that angle is 90 degrees

(s+1) + 90 + (2s-1) = 180

3s + 90 = 180

s = 30

3 0

2 years ago

Your throw your ball into a air from height of 4.2

melamori03 [73]

4.2m
10N/kg
Hjdsdgjbcsryhbvzshkk

3 0

3 years ago

The distance from Jason’s house to school is 0.5 kilometers.What is the distance in meters?

inn [45]

Answer:

Step-by-step explanation:

So we know that we have 1000 m in 1 km.

So convert 0.5 km to m we multiply 0.5 by 1000

0.5*1000 = 500

7 0

3 years ago

Read 2 more answers

Jennifer is shopping with her mother. They pay $2 per pound of tomatoes.

elena-14-01-66 [18.8K]

Answer:

The constant of proportionality is 2

The equation is y=2x

Step-by-step explanation:

The unit price or unit rate is $2

Let y represent the price of tomatoes, then the price of x tomatoes is

$y=2x$ dollars.

This represents a direct variation.

This equation is of the form $y=kx$ , where k=2 is the constant of proportionality.

4 0

3 years ago