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2 years ago

At Emily's summer camp, there are

Mathematics

2 answers:

nataly862011 [7]2 years ago

7 0

Answer:

15 counselors

Step-by-step explanation:

The ratio of counselors to girls is 6:40. Set this as a proportion:

$\frac{6}{40}$ = $\frac{x}{100}$

Cross multiply to solve: 6×100=40x

600=40x

x=15

To satisfy the ratio, there needs to be 15 counselors for 100 girls.

Stells [14]2 years ago

6 0

Answer:

Step-by-step explanation:

3 counselors for every 20 girls

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2 years ago

Raquel has created a program for a robot. The robot travels 10 meters and stops. The program is designed for wheels that are 2.5

Grace [21]

Answer:

Raquel should adjust the number of rotations to 115.81 rotations

Step-by-step explanation:

step 1

Find the circumference of the wheels that are 2.5 cm in diameter

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we have

$r=2.5/2=1.25\ cm$

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substitute

$C=2(3.14) (1.25)$

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step 2

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step 3

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Find the circumference of the wheels

The circumference is equal to

$C=2\pi r$

we have

$r=2.75/2=1.375\ cm$

assume

$\pi =3.14$

substitute

$C=2(3.14) (1.375)$

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step 4

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2 years ago

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leonid [27]

Answer:

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2~3

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Step-by-step explanation:

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