The sum of the three numbers is 69. if the second number is equal to the first diminished by 8, and the third number is 5 times the first. what is the numbers? if x represents the first number, then which of the following equations could be used to solve the problem?

45

step-by-step explanation:

3,6 and 7.

step-by-step explanation:

a) unit place of 37 is 7

so the unit place of cube of 37 will be

7³= 343=3

the answer is 3.

b) unit place of 56 is 6, so the unit place of cube of 56 will be

6³= 216=6

the answer is 6.

c) unit place of 133 is 3, so the unit place of cube of 133 will be

3³= 27= 7.

the answer is 7.