Mathematics: Which decimal has the greater value: 8,516.50 or 8,516.90?

Which decimal has the greater value: 8,516.50 or

daphnevlogs11

10.09.2021

See below

Step-by-step explanation:

Part A

Required equations:

x + y = 55y = x + 25Part B

Substitute y in the first equation and solve for x:

x + x + 25 = 552x = 55 - 252x = 30x = 15

Jackie spends 15 min on running every day

Part C

Let dancing time y = 45, then:

x + y = 55x + 45 = 55x = 10

The difference in times:

45 - 10 = 35 ≠ 25

If she spends 45 minutes on dancing then would spend 10 minutes on running and the difference is not 25 minutes, therefore it is impossible.

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