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djverab [1.8K]
3 years ago
11

What is the coefficient of x in the expression? 6x + 9y + 15z

Mathematics
2 answers:
givi [52]3 years ago
6 0

Answer: 6

A coefficient is a numerical or constant quantity placed before and multiplying the variable in an algebraic expression.

In this case we want to find the coefficient that has x. 6 is the only coefficient in the expression 6x + 9y + 15z that has the coefficient of x.

Basically, a coefficient is simply a number that has a variable after it.

alexira [117]3 years ago
6 0

Answer:

6

Step-by-step explanation:

The constant near x is the coefficient of x

So, 6

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Please help me with these two questions
melisa1 [442]

Hi! It will be a pleasure to help you finding the solution to this problem, so let's solve each part:

<h2>PART 1.</h2><h3>Finding the correct expression.</h3><h3>Correct answer:</h3>

\boxed{A. \ 1.50h+4}

From the problem, we know the following data of the problem:

  • Laval parked at the beach.
  • Laval paid a fixed price of $4 for a pass.
  • Laval paid $1.50 for each hour.

Our goal is to find the the expression for the total cost for parking at the beach for h hours. So:

Step 1: Since we have a fixed price, this value will appear in our expression:

4

Step 2: Since Laval paid $1.50 for each hour, this can be represented as the following expression:

1.50h

Finally, we can write total cost (C) as the sum of these two expressions:

C=1.50h+4

Finally, our correct option is A:

\boxed{1.50h+4}

<h2>PART 2.</h2><h3>Finding h.</h3><h3>Correct answer:</h3>

5 hours

Here we have to find how many hours Laval spent at the beach knowing that he paid a total amount of $11.50. From the previous part, we know that our expression is:

C=1.50h+4 \\ \\ For \ C=11.50 \\ \\ 11.50=1.50h+4 \\ \\ Subtracting \ 4 \ from \ both \ sides: \\ \\ 11.50-4=1.50h+4-4 \\ \\ 7.5=1.50h \\ \\ Dividing \ both \ sides \ by \ 1.50 \\ \\ h=\frac{7.5}{1.50}=5

Finally, he spent 5 hours at the beach

6 0
3 years ago
Math Problem: E.coli bacteria double in a lab about every 20 minutes. If the initial population is 85 bacteria, what is the popu
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Answer:

I think it's 774

Step-by-step explanation:

it might be that answer

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Read 2 more answers
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Answer:

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Step-by-step explanation:

think we hve to use trigonometry here

sin 30⁰

see the pic

sorry I am from India and we solve this type of sum with this method

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Answer:

The answer is B y = 1.5x – 4.5

Step-by-step explanation:

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3 years ago
Karen took out a loan for $725 with a 2.5% interest rate that is compounded annually. No additional money will be deposited or w
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Step-by-step explanation:

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