All categories

3 years ago

The ratio of boys to girls in a class is 2:3. there are twelve boys in the class. how many girls are there

Mathematics

1 answer:

gogolik [260]3 years ago

4 0

The answer is 18

Solution: 2:3 2x6=12
3x6=18
Hope this help

You might be interested in

Write a ratio for the following description: Kaleel made three times as many baskets as John during a basketball practice.

Hoochie [10]

Answer:

3:1

Step-by-step explanation:

If John makes 3, Then Kaleel makes 9, If John makes 1, Then Kaleel makes 3.

8 0

3 years ago

Trey runs each lap in 6 minutes. He will run at least 30 minutes today. What are the possible numbers of laps he will run today?

vlada-n [284]

Answer:

5 laps

Step-by-step explanation:

30 ÷ 6 = n

n=5

8 0

3 years ago

Select the correct answer.

Eva8 [605]

Answer:

Equation C: 5/8x + 2..5 = 3/8x + 1.5 + 1/4x

Step-by-step explanation:

Let us go through each of the equations one by one.

Equation A: $2.3y+2+3.1y=4.3y+1.6+1.1y+0.4$

This simplifies to

$5.4y+2=5.4y+2$

which has infinitely many solutions.

Equation B: $32x+25-21x=10x$

this simplifies to

$x+25=0$

$x=-25$

which is exactly one solution.

Equation C: $\frac{5}{8} x+2.5=\frac{3}{8}x+1.5+\frac{1}{4} x$

this simplifies to

$\frac{5}{8} x+2.5=\frac{5}{8} +1.5$

$2.5=1.5$

There's no way this is going to be possible; this equation has no solutions.

Equation D: $\frac{1}{3} x+\frac{1}{7} x=\frac{3}{7} x$

this gives

$\frac{1}{3} =\frac{2}{7} y$

$y=\frac{7}{6}$

which is exactly one solution.

Thus we see that it is equation C that has no solutions.

3 0

3 years ago

Select the expressions that are equivalent to 4(c–6). (c–6)4 4c–24 ( - 6+c)4 4( - 6+c)

padilas [110]

4(c-6)
distribute 4(c-6)
4xc and -6x4
youll get 4c-24

8 0

4 years ago

Plzzzz help mehh its scientific notation and im putting alot o point for it

s344n2d4d5 [400]

$(7.2\cdot10^7)^2=7.2^2\cdot(10^7)^2=51.84\cdot10^{14}=\boxed{5.184\cdot10^{15}}=\\
\boxed{5,184,000,000,000,000}$

5 0

3 years ago