2/216 = 7/x
cross multiply
(2)(x) = (216)(7)
2x = 1512
x = 1512/2
x = 756 <==
What you are asking is x + 30 ÷ 11 = 1
x + 30 ÷ 11 = 1
Simplify
x + 30/11 = 1
Subtract 30/11 from each side
x + 30/11 - 30/11 = 1 - 30/11
x = -19/11
Answer:
A
Step-by-step explanation:
x+x+1+x+2=33
3x+3=33
3x=30
x=10
so x+1 =11
x+2 =12
30x-12-8x+40
22x-12+40
22x +28
Given:
savings 12% of her salary.
savings $4,200
This year's salary: x + 3,000
Last year's salary: x
4,200 represents 12% of her salary.
4,200 / 12% = 35,000 is her salary this year.
x + 3,000 = 35,000
x = 35,000 - 3,000
x = 32,000 her salary last year.
