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givi [52]
3 years ago
5

2) 15 was subtracted from a number and that difference was then divided by 0.7. After which, that quotient was multiplied by 3.

The resulting product was -3. What was the number?​
Mathematics
1 answer:
Galina-37 [17]3 years ago
3 0

Answer:

A number (x) is 14.3

Step-by-step explanation:

You can write the problems like this and solve starting with z to x

x - 15 = y (15 was subtracted from a number)LAST HERE

x = 15 + -0.7

x = 14.3

y / 0.7 = z (and that difference was then divided by 0.7.)THEN HERE

y = -1 x 0.7

y = -0.7

3z = -3(After which, that quotient was multiplied by 3. The resulting product was -3.) START HERE

z = -3 / 3

z = -1

CHECK

14.3 - 15 = -0.7 -0.7 / 0.7 = -1 3 x -1 = -3

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