Answer: 4
Step-by-step explanation:
Because %s can be expressed as fractions over 100, because 90 is 70% of x, 70% is 70% of 100. Thus, 90/x = 70/100.
Hope it helps <3
Answer:
4
90 is 70% of x.
90 = 70% × x
90 = 70/100x
Divide both sides by x.
90/x = 70/100
