The numbers on two consecutively numbered gym lockers have a sum of 141. What are the locker numbers?
2 answers:
Answer:
70 and 71
Step-by-step explanation:
Consecutive means in a row
x is the first number
x+1 is the next number
x+ x+1 = 141
Combine like terms
2x+1 =141
Subtract 1 from each side
2x+1-1=141-1
2x= 140
Divide each side by 2
2x/2 =140/2
x = 70
The two lockers are 70,71
Answer:
70 and 71
Step-by-step explanation:
Let the two consecutive numbers be: x and x+1
x + x+1 = 141
2x + 1 = 141
2x = 140
x = 70
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Let m the tens digit and n the ones
the Original number is 10m+n
7(m+n) =10m+n
7m+7n=10m+n
6n=3m
Reversing the number 10n+m
10n+m=18+n+m
9n=18
n=2
6n=3m
6(2)=3m
3m=12
m=4
the number is 10m+n=10(4)+2=42
Answer:
See attached
I got an answer of 125.2411251548
or to the nearest tenth 125.2
Step-by-step explanation:
Part A: 6.2
Part B:6.405
PArt C: The estimate was close to the real answer
