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beks73 [17]
4 years ago
14

Evaluate the expression. 3 (x + y), x = 5 and y = 2

Mathematics
2 answers:
Kaylis [27]4 years ago
3 0

Answer:

put x and y value in equation 1

3 (5+2)

3 (7)

21

Step-by-step explanation:

mixas84 [53]4 years ago
3 0

Answer:

21

Step-by-step explanation:

Substitute the value of the variable into the expression and simplify.

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URGENT!!! 30 POINTS!!!
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Solve 25=5x - 15<br><br> (Please help asap <br> thank you!)
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Wes can paint a certain room in 8 hours. Sally can paint the same room in 5 hours. How long will it take them working together t
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The time it takes them working together to paint the room is 3.08 hours

<h3>Rational expression</h3>

Rational expression are equation written as a ratio of two expressions or equations.

If Wes can paint a certain room in 8 hours, she can paint 1/8 of the room in 1 hr

Similarly, if Sally can paint the same room in 5 hours, , she can paint 1/5 of the room in 1 hr

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Learn more on rational expression here; brainly.com/question/2264785

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What is 7/10+20/100?
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you can also reduce 20/100 to 2/10.

7/10 + 2/10 = 9/10
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