Find the original number in order to know how many cars were in the lot on Wednesday. How many cars were in the lot on Wednesday?
2007-09-18 03:40:56 · 13 answers · asked by sbibles 2 in Science & Mathematics ➔ Mathematics
20% of a number can be written as 0.2x
So:
0.2x + 27 = 57
0.2x = 57 - 27
0.2x = 30
x = 30 / 0.2
x = 150
Solved.
2007-09-18 03:47:23 · answer #1 · answered by Mike T 6 · 0⤊ 0⤋
27+ 30 =57.So if 20% is 30 then the number is 30*5 = 150.
2007-09-18 10:44:39 · answer #2 · answered by cooldude_raj07 2 · 0⤊ 0⤋
the answer is 150 because---
You know that you need to add 30 to 27 to get 57, so in order to get 30, you need to find a number that will equal 30 when you take 20% of it. That number is 150 (20% x 150=30)
2007-09-18 10:44:21 · answer #3 · answered by originalsmartie 4 · 0⤊ 0⤋
Number = x
20 % of the number = x (20/100)=x/5
x/5+27=57
x+135=285
x=150 (cars)
2007-09-18 10:54:57 · answer #4 · answered by cidyah 7 · 0⤊ 0⤋
(.20)(x) + 27 = 57 Solve for x. x =150.
2007-09-18 10:47:13 · answer #5 · answered by Gabi ng Lagim 7 · 0⤊ 0⤋
150
2007-09-18 10:47:44 · answer #6 · answered by Tom S 2 · 0⤊ 0⤋
150
2007-09-18 10:45:42 · answer #7 · answered by Marie B 1 · 0⤊ 0⤋
Let x be the number you're looking for. 20% is .2, so
.2x + 27 = 57. Solve the equation and you'll have your answer.
2007-09-18 10:45:09 · answer #8 · answered by Judy 7 · 1⤊ 1⤋
let the no.=x
so: 20x/100+27=57
or x/5=57-27=30
or x=150
2007-09-20 01:52:35 · answer #9 · answered by Sumita T 3 · 0⤊ 0⤋
Here is the equation. You should be able to take it from here.
.2x + 27 = 57
2007-09-18 10:45:44 · answer #10 · answered by Anonymous · 1⤊ 1⤋