Answer:
The answer is B, 5.
Step-by-step explanation:
3x+2 is per side. A square has 4 sides. 3x+2 times 4 is 12x+8 (using the distributive property).
12x+8 = 68
12x = 60
divide both sides by 12...
60/12 = 5.
Therefore x =5
The unit rate is 5 degrees per hour.
Further explanation:
Unit rate is how much any quantity changes in one unit of time. For this purpose the change in quantity is divided by the time taken for that change.
Given
The unit rate is 5 degrees per hour.
Keywords: Formulas, Unit rate
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2(x+7)^2=0 would be your answer :)
Just solve until the answers are the same
25 times x plus 30 for John
15 times x plus 50 for Mary
Answer:
40
Step-by-step explanation:
33-13=20
20*2=40
Check: 40/2=20
20+13=33