3 years ago

In a class of 20 students, the number of boys was the number of girls. How many girls were in the class?

Mathematics

1 answer:

Zielflug [23.3K]3 years ago

3 0

Answer:

Step-by-step explanation:

Because if the number of girls is the same as the boys you just devide 20 by 2 and get 10

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Answer:

B. 95

Step-by-step explanation:

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2 years ago

What is the volume of a sphere with a diameter of 15 cm? Round the answer to the nearest whole number.

AveGali [126]

Answer:

1767 cm³

Step-by-step explanation:

We can use volume V = 4/3 π r³

We have diameter of 15 cm. To get radius, we need to divide diameter by 2.

r = 7.5 cm

So now plug in r = 7.5 then calculate V:

V = 4/3 π ( 7.5 )³

V = 4/3 π * 421.875 ≈ 1767.145 ≈ 1767

Hope this helps.

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3 years ago

WILL GIVE U BRAINLIEST ♡ Rationalize the denominator of fraction with numerator square root of -36 divided by (2-3i)+(3+2i)

Dmitriy789 [7]

Answer:

$- \frac{3}{13} + \frac{15i}{13}$

Step-by-step explanation:

$\frac{ \sqrt{ - 36} }{(2 - 3i) + (3 + 2i)}$

Set up equation

Step 1: Simplify

$\frac{6i}{5 - i}$

Step 2:Multiply by conjugate

$\frac{6i}{5 - i} \times \frac{5 + i}{5 + i}$

Step 3:Simplify

$\frac{30i + 6 {i}^{2} }{ {i}^{2} - 5 {}^{2} }$

We can reduce this and we must make the imaginary number and real number serpate equations.

$- \frac{6}{26} + \frac{30i}{26}$

Reduce each by 2

$- \frac{3}{13} + \frac{15i}{13}$

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2 years ago

What is an expression to represent One minus the quotient of one and a number x.

Advocard [28]

Quotient is the result of a division.

1 - 1/x

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3 years ago

Meg lives in Indianapolis and wants to visit her mom in Lima.

Svetach [21]

Answer:

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2 years ago

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