3 years ago

At a pet store, there are 30 aquariums.

Mathematics

1 answer:

irakobra [83]3 years ago

8 0

Answer:

f = (20 × 15) + (10 × 6)

Explanation:

You are just find how many fish are salt water and how many freshwater and adding them together. The total number of aquariums is irrelevant in this case.

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MATH QUESTION : WORTH 45 PTS

trapecia [35]

y ≤ x − 5

y ≥ −x − 4

This is a check and see type of problem.

if x=5

y ≤ 5 − 5 y≤ 0

y ≥ −5 − 4 y ≥-9

-9≤ y ≤ 0

-2 works so (5,-2) is a solution

if x= -5

y ≤ -5 − 5 y≤ -10

y ≥ 5 − 4 y ≥1

no solution

Choice B (5,-2)

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3 years ago

Express the formula P=2L+2W in terms of the width,W. Use the formula to find the width when the perimeter is 70 and the length i

ozzi

Answer:

<h2>The width is 13</h2>

Step-by-step explanation:

From the question

P=2L+2W

where

L is the length

W is the width

To make W the subject move 2L to the left side of the equation

That's

2W = P - 2L

Divide both sides of 2 to make W stand alone

We have

$W = \frac{P - 2L}{2}$

when

P = 70

L = 22

W is

$W = \frac{70 - 2(22)}{2} \\ W = \frac{70 - 44}{2} \\ W = \frac{26}{2}$

We have the final answer as

Hope this helps you

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