All categories

2 years ago

In a class the ratio of boys to girls is 2:1. There are 8 girls. Work out the number of boys.

Mathematics

1 answer:

olga2289 [7]2 years ago

4 0

Answer:

Step-by-step explanation:

since the ratio is 2 to 1. 2 as boys and 1 as girls and there are 8 girls. Multiply 1 by 8 and you get 8 girls. multiply 2 by 8 and you get 16 boys.

You might be interested in

Mrs. Myles gave the same test to both her first and third period class. In first period, the median was 75 and the range was 30.

Dennis_Churaev [7]

Answer:

The range is the difference between the biggest and smaller values of a set. The median is the middle value of a set. So we cannot say were the lowest score was found, comparing the median and ranges, because it could be that some repeated value very low or high is biasing the median, we could do it with the mean perhaps. So the proposal is false.

7 0

3 years ago

Read 2 more answers

sam has 24 muffins,which need to be split into dozens. 8 of the muffins are blueberry. how many boxes does he need?

Mekhanik [1.2K]

3 just divide 24 by 8

7 0

2 years ago

3(-0.4n-0.7)=-3.2n-2.58

svlad2 [7]

Answer:

$n=-0.24$

Step-by-step explanation:

$3\left(-0.4n-0.7\right)=-3.2n-2.58$

Use distributive property.

$-1.2n-2.1=-3.2n-2.58$

$-1.2n-2.1+2.1=-3.2n-2.58+2.1$

$-1.2n=-3.2n-0.48$

$-1.2n+3.2n=-3.2n-0.48+3.2n$

$2n=-0.48$

$\frac{2n}{2}=\frac{-0.48}{2}$

$n=-0.24$

3 0

3 years ago

At 9 a.m. a car (A) began a journey from a point, traveling at 40 mph. At 10 a.m.

Kisachek [45]

At three hours as car a has already traveled a hour which making it three therefore making car b equal 2 hours or in a math equation 40×3=car b and 60×2=car a

5 0

3 years ago

When you mix two colors of paint in equivalent ratios, the resulting color is

vredina [299]

Answer:

Step-by-step explanation:

From the given table,

To prepare a mixture of a paint, two paints of different shades have been added in the same ratio,

Since, 2 cups of blue paint are mixed with 10 cups of yellow paint

Therefore, ratio in which these shades have been added = $\frac{\text{Pink}}{\text{Blue}}$