Henry was thinking of a number. Henry divides by 2, then adds 10 to get an answer of 15. What was the original number?
2 answers:
Answer:
Henry was thinking of the number 10.
Step-by-step explanation:
Variable x = Henry's original number
Set up an equation:
x ÷ 2 + 10 = 15
Isolate variable x:
x ÷ 2 = 5
x = 10
10 bc 10 divided by 2 is 5 then 5 plus 10 = 15
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X represents the number of sodas
y represents the number of hot dogs
142 = x + y
x = 38 + y
Substitute x in the first equation
142 = 38 + y +y
142 - 38 = 2y
104/2 = 2y/2
y =52
x = 38 + 52
x = 90
Answer: Yes, it is worth the extra drive, going to the further store is cheaper.
The cheaper option saves you $0.89.
HOPE THIS HELPS PLZZ GIVE BRAINLEST.
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