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3 years ago

What is the solution to the equation? 2q + 18 = –5q – 3

1 answer:

3 0

To solve for q, we need to get q on one side and then simplify if needed.

Our current equation is:

2q + 18 = -5q -3

Let's get q by itself.

Add 5q to both sides.

7q + 18 = -3

Subtract 18 from both sides.

7q = -21

Divide both sides by 7.

q = -3

Your correct answer is B.)

I hope this helps!

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3 years ago

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Given the digits 2,5,7,9, 4, and 1, how many 4-digit codes can be made if 4 points

VMariaS [17]

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144

Step-by-step explanation:

first digit of the code: only 2 and 4 are the only even numbers availible, so only 2 possibilities for the first digit.

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3 years ago

Fred had 72 special edition baseball cards. Fred gave away x of the cards. Write an expression that shows the number of baseball

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Remaining cards = 72 - x

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3 years ago

The amount of money that Charlie saves each week is directly proportional to the amount he earns. Last week Charlie saved $32 on

hoa [83]

<h3><u>Question</u></h3>

The amount of money that Charlie saves each week is directly proportional to the amount he earns. Last week Charlie saved $32 on his earnings of $512. At the same rate, how much will Charlie save this week on his earnings of $448?

<h3><u>Answer:</u></h3>

Charlie saved $ 28

<h3><u>Solution:</u></h3>

Given that amount of money that Charlie saves each week is directly proportional to the amount he earns

Let y represent of saved money and x represent amount of earned money

Therefore,

$\text{ Amount of money saved each week } $\propto$ amount he earns$

$y \propto x$

y = kx --- eqn 1

Where "k" is the constant of proportionality

<em><u>Last week Charlie saved $32 on his earnings of $512</u></em>

y = 32 and x = 512

Substituting in eqn 1, we get

$32 = k(512)\\\\k = \frac{32}{512} = 0.0625$

To find amount of saved money, we will substitute k = 0.0625 and x = 448 in eqn 1

y = 0.0625(448) = 28

Thus charlie saved $ 28

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4 years ago