2 years ago

Estimate the unit rate. 178 students in 7 classes

Mathematics

1 answer:

sdas [7]2 years ago

4 0

Answer:

25.4 students in each class

Step-by-step explanation:

178/7 = 25.4285714286 rounded up to 25.4

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One subtracted from a number the results is2 two

lubasha [3.4K]

3
step by step explanation:

3-1 = 2

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3 years ago

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∣14−3x∣ for x=6x=6 show work

horsena [70]

Answer:

the answer would be -4

Step-by-step explanation:

14 - 3(6) = -4

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4 years ago

Company earns S dollars by selling y items per week. According to the equation S(y)=−2y^2+60y+10, how many items does company ne

sp2606 [1]

Answer:

$Max = 15$

Step-by-step explanation:

Given

$s(y) = -2y^2 + 60y + 10$

Required

Determine number of items that gives maximum earnings;

The general form of a quadratic equation is:

$s(y) = ay^2 + by + c$

And the maximum is calculated as:

$Max = \frac{-b}{2a}$ If a<0

Comparing $s(y) = ay^2 + by + c$ to $s(y) = -2y^2 + 60y + 10$

We have that:

$a = -2$ $b = 60$ $c = 10$

Substitute these values to

$Max = \frac{-b}{2a}$

$Max = \frac{-60}{2 * -2}$

$Max = \frac{-60}{-4}$

$Max = 15$

<em>The number of item that maximizes the function is when y = 15</em>

7 0

3 years ago

Select all pairs of alternate exterior angles. Assume the lines are parallel.

PSYCHO15rus [73]

Answer:

1 and 8

2 and 7

Step-by-step explanation:

Alternate angles take form of a Z-angle.

For alternate exterior angles look for exterior angles that for Z- pattern.

The alternate exterior angles are marked in the attached diagram.

Hence the alternate exterior angles are:

1 and 8

2 and 7

3 0

3 years ago

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Darya [45]

Answer:

$\frac{n}{3} - 7$

Step-by-step explanation:

The comma is important here, otherwise "one third of a number n minus 7" is

$\frac{n - 7}{3}$

4 0

3 years ago