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.
<em>Hope it helps <3</em>
Answer:
-4 or 5
Step-by-step explanation:
let number be x
x²-x=20
Rearrange
x²-x-20=0
(x+4)(x-5)=0
Separate
x+4=0, x-5=0
x=-4 or 5
Answer:
C
Step-by-step explanation:
it says that you have 5 then the .25 says per Mile the word "per" equals to multiply so you put c=5+.25m
