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Bingel [31]
3 years ago
5

Evaluate n2-m; use m=7, and n=8

Mathematics
2 answers:
Fynjy0 [20]3 years ago
6 0

Answer:

9

Step-by-step explanation:

alexdok [17]3 years ago
5 0

Answer:

9

Step-by-step explanation:

(8)*2-7

16-7

9

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3 years ago
Jim ran 15 miles in 5 days. At this rate, how many days will it take Jim to run 165 miles?
AleksAgata [21]

Answer:

55 days

Step-by-step explanation:

Given

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no. of miles ran in 5 days = 15 miles

dividing LHS and RHS by 5

no. of miles ran in 5/5(=1) days = 15/5 miles = 3 miles

no. of miles ran in 1 day =  3 miles

let the no. of days taken to run 165 miles be x   ----A

No of miles ran in x days = x*no. of miles ran in 1 day = 3x miles

thus,  From A

3x  = 165

x = 165/3 = 55

Thus, it took 55 days for JIM to run 165 miles

3 0
3 years ago
CD and CB are tangent to circle A. If CD = 5x – 13 and CB = 12, find x.<br>​
hoa [83]

Answer:

5

Step-by-step explanation:

because 5•5=25 and 25-13=12

6 0
3 years ago
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