Algebra Question 1
posted by Jab .
5. Business B pledged $20 million less
than twice the amount pledged by
Business A. Business C pledged $200
million less than twice the amount
pledged by Business B. If x represents
the amount pledged by the Business A,
write expressions to show the amounts
pledged by Business B and Business C
in terms of x.
b. The combined pledges of Business A,
Business B, and Business C totaled
$1035 million. Write an equation that
can be used to determine how much
each business pledged.
(I have no idea how to do this problem)
business A --- x , x in millions
business B --- 2x - 200
business C --- 2B - 200 = 2(2x-200) - 200
x + 2x-200 + 2(2x-200) - 200 = 1035
x +2x- 200 + 4x - 400 -200 = 1035
7x = 1835
x = 262.143 million
A pledged 262.143 million
B pledged 324.286 million
C pledged 448.571 million
262.143+324.286+448.571 = 1035
Thank you so much!
Bus. A pledged $185 million
Bus. B pledged 185x2=370-20=350 million
Bus. C pledged 350x2=700-200=500million
185+350+500= $1035 million