Answer:
-288
Step-by-step explanation: I took the following steps to find the answer:
(4 + 32)(15 – 23)
\ /
(36)(15 – 23)
\ /
(36) (- 8)
\ /
-288
First, let's write two expressions, letting x= the number of months which have elapsed:
Bill: 120 + 10x
Phil: 150 + 4x
If we set them equal to each other, then solve for x, that will be the number of months where their weights equal each other:
120+10x = 150 + 4x [starting equation]
-120 -4x -120 -4x [ subtract 120 from both sides, and 4x from both sides, to isolate the term with the variable]
<u>6x</u> = <u>30</u> [divide both sides by 5]
5 5
x=6. They will weigh the same in six months.
Answer: y = 1/2x - 9
Step-by-step explanation:
- y + 5 = 1/2(x - 8)
- y + 5 = 1/2x - 4 (distribute)
- y = 1/2x - 9 (subtract 5 from both sides)
9% of $2500 = 225
7 × 225 + 2500 = $4075
