Of means multiply

3/5 *n=30

3/5 5/3 cancels than you do 30 *5/3 =50

The answer is 50 you can check your answer by doing 3/5 *50=150/5 or 30 so it's correct .

5 0

3 years ago

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A ratio of boys to girls in the classroom is 4 to 5if there are 20 girls in the class how many boys would there be? Explain your

sergey [27]

16 because 5 times 4 = 20 there for you multiply 4 times 4 to get 16

6 0

2 years ago

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Find the area of a trapezoid with bases that measure 9.2 CM and 7.7 cm and height 6.8 cm

maria [59]

$\bf \textit{area of a trapezoid}\\\\
A=\cfrac{h(a+b)}{2}~~
\begin{cases}
a,b=\stackrel{bases}{parallel~sides}\\
h=height\\
---------\\
a=9.2\\
b=7.7\\
h=6.8
\end{cases}\implies A=\cfrac{6.8(9.2+7.7)}{2}$

8 0

3 years ago

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One angle of an isosceles triangle measure 30*. Which other angles could be in that isosceles triangle? Choose all that apply.

Elodia [21]

Answer: 75 degrees

Step-by-step explanation:

75+75+30=180

5 0

3 years ago