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3 years ago

In a school with 117 seventh-grade students and about 29 students per class, the number of seventh-grade classes is about

Mathematics

2 answers:

Reil [10]3 years ago

8 0

Answer:

Step-by-step explanation:

In a school with 117 seventh-grade students and about 29 students per class, the number of seventh-grade classes is about.

117 / 29 = 4.03

rounded is 4

notka56 [123]3 years ago

5 0

Answer - 4 classes

117 ÷ 29 = 4.03...

That is the answer. hope this helps.

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What is the value of the expression (-8/9) + (-2/3) x (-4 1/2)

geniusboy [140]

$\frac{4}{9}$

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3 years ago

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galina1969 [7]

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2 years ago

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Find the surface area and volume of a sphere with a radius r = 0.8 ft. Round your answer to the nearest tenth. A. 7.8 ft2; 2.6 f

fiasKO [112]

Surface area of a sphere = 4πr²

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3 years ago

9. Stan’s Deli is situated inside a large industrial park. The weekday gross sales at Stan’s average $1,240, with a standard dev

mr Goodwill [35]

Answer:

0.9792

Step-by-step explanation:

Data provided in the question:

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sample size = 40

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= $\frac{180}{\sqrt{40}}$

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3 years ago

If three times a number added to 8 is divided by the number plus 7, the result is four thirds. Find the number.

Marina86 [1]

9514 1404 393

Answer:

4/5

Step-by-step explanation:

The wording is ambiguous, as it often is when math expressions are described in English. We assume you intend ...

$\dfrac{3n+8}{n+7}=\dfrac{4}{3}\\\\3(3n+8)=4(n+7)\qquad\text{multiply by $3(n+7)$}\\\\9n+24=4n+28\qquad\text{eliminate parentheses}\\\\5n=4\qquad\text{subtract $4n+24$}\\\\\boxed{n=\dfrac{4}{5}}\qquad\text{divide by 5}$

The number is 4/5.

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3 years ago