Anumber is multiplied by the number 3less than itself. the result is 54. the number

• positive 9

• negative -6

Step-by-step explanation:

Since you know your multiplication tables, you are familiar with the fact 6·9 = 54. One of these factors is 3 larger than the other, so is the answer you seek.

The number is 9.

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These multiplication problems often have negative solutions as well. Usually, the negative solution is the other factor of the pair, but with a minus sign. Here, that is -6:

(-6)(-9) = 54 . . . . . where -9 is 3 less than -6.

15 hours

Step-by-step explanation:

15+5=20

20+20=40

13+17=30

Add

90 hours

90÷6= 15

15 hours