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d1i1m1o1n [39]
2 years ago
5

Enter an algebraic equation for the word sentence. Use x as your variable. A number increased by 6.8 is 8.9.

Mathematics
1 answer:
Sergeeva-Olga [200]2 years ago
8 0

Answer:

x + 6.8 = 8.9

Step-by-step explanation:

First let's break this sentence down into parts.

A number increased by 6.8 is 8.9.

"A number" - This value is unknown, therefore we will represent it with x.

"increased by" - This signifies that we will be adding.

"is" - This represents the equal sign (=)

Now let's put these together.

x + 6.8 = 8.9

This is your expression.

Hope this helps!

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A washer and a dryer cost $847 combined. The washer costs $53 less than the dryer. What is the cost of the dryer?
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--------------------------------------------------------------
Define x :
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Let the dryer be x.
Dryer = x 
Washer = x -53

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Construct Equation :
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The washer and the dryer cost $847
⇒ x + x - 53 = 847

--------------------------------------------------------------
Solve x :
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x + x - 53 = 847
2x - 53 = 847
2x = 847 + 53
2x = 900
x = 450

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Find cost of dryer and washer :
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Dryer = x = $450
Washer = x = 450 - 53 = 397

--------------------------------------------------------------
Answer: Dryer = $450
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