The product of a number and 9 less than the number is 90. Find the number.

1 answer:

7 0

Let's say this number is a:
a*(a-9) = 90
a^2-9a-90 = 0
(a-15)(a+6) = 0
a = 15 or a = -6
Therefor a. would be the correct answer :)

You might be interested in

BigorU [14]

Answer:

X=9

You divide 8 in each side and you will get x=9

Step-by-step explanation:

6 0

3 years ago

frozen [14]

A = 1/3 * s^2 * h where s is a side of the base and h is the height.

4 0

2 years ago

Ann [662]

#9 the sum of two angles is 90 degrees, creating a right angle.

#10 the sum of the two angles is 180 because the form a supplementary angle

4 0

3 years ago

Ulleksa [173]

Answer:

Step-by-step explanation:

7 0

2 years ago

alekssr [168]

Answer:

x=7

Step-by-step explanation:

8 0

2 years ago