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MissTica
2 years ago
5

Help please explain answer.

Mathematics
1 answer:
Helga [31]2 years ago
7 0

Answer:

A. 20

Step-by-step explanation:

Firstly, you have an equation  where x is unknown.

It is said to find the result of this equation if x is 5.

That means you have to substitute 5 instead of x in your equation.

That will be:

3*5+4*5-15

When you calculate that, you get number 20.

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Mark sold x pens for $2 each. He received less than $80 from the sale. Find the greatest possible number of pens he sold
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$80-$2= $78 is the number less than $80, since the pens cost $2

78/2= 39 pens is the greatest number of pens sold

hope this helps
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3 years ago
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Two months ago, the price, in dollars, of a cell phone was c.
laiz [17]

Answer:

c × 0.90

Step-by-step explanation:

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2 years ago
Tyler made a scale drawing of a 24 ft long boat. In his drawing, the boat was 6 inches. The scale that Tyler used for his drawin
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Answer:

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Step-by-step explanation:

Giving the following information:

Tyler made a scale drawing of a 24 ft longboat. In his drawing, the boat was 6 inches.

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1 Tyler inch= 288/6= 48 inches

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3 years ago
12(a−4) simplified I am confused with this question
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Answer:

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Step-by-step explanation:

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