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inna [77]
3 years ago
11

403 students go on a field trip there are 19 vehicles some vans and some buses. 7 students can fit in a van and 25 students can

fit in a bus​
Mathematics
1 answer:
Andrews [41]3 years ago
3 0

Answer:

Shii I hope so

Step-by-step explanation:

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If y varies directly as x and y=12 when x=c what is y in terms of c when x=8
tatiyna

"y varies directly as x" means y = kx

you do not know what k is yet, other than that it is some constant number.

Now plug in the given values, y=12 when x=4, in the equation

12 = 4k

=> k = 3

Now rewrite the equation with the k value you just found

y = 3k

Substitute 18 in place of x

y = 3(18)

y = 54

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3 years ago
A sporting goods store wants to display 64 sneakers in rows.Each row must contain the same amount of sneakers. Which arrangement
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Step-by-step explanation:

3 rows of 21 sneakers.

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2 years ago
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Answer:

Step-by-step explanation:

In the two independent samples application, it involves the test of hypothesis that is the difference in population means, μ1 - μ2. The null hypothesis is always that there is no difference between groups with respect to means.

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A researcher can hypothesize that the first mean is larger than the second (H1: μ1 > μ2 ), that the first mean is smaller than the second (H1: μ1 < μ2 ), or that the means are different (H1: μ1 ≠ μ2 ). These ae the alternative hypothesis.

Thus for the z test:

    if n₁ > 30 and n₂ > 30

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where Sp is √{ [(n₁-1)s₁² + (n₂-1)s₂²] / (n₁+n₂-2)}

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The answer is a=0. I hope I helped
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what is the equation?

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