What a wack question, confused on either he spent that 7 or didn't. But imma say he didnt so, i think 8$ if thats even an answer, spent half his allowance and earned 7 dollars and ended off with 15 at the end of the week. So that means 8 doesn't it?
Step-by-step explanation:
Answer:
? = (x + 7)
Step-by-step explanation:
2x^2 + 15x + 7 = (2x + 1) (?)
1. First you need to figure out what multiplied by 2x will give you 2x^2, which is x.
2. Then you need to find what would give you 15x. In this case because you have the 1 in (2x + 1), you already know that there is going to be an extra x. So, what times 2x gives you 14x? It's 7.
3. Lastly you need to make sure that 1 multiplied with 7 is equal to 7 and combine like terms.
4. Check: (2x + 1) (x + 7) =
2x^2 + 14x + 1x + 7 =
2x^2 + 15x + 7
Answer:
0 & 3
Step-by-step explanation:
(1/7)x² - (3/7)(x) = 0
Take (1/7)x common
(x/7)(x - 3) = 0
(x/7) = 0 when x = 0
x - 3 = 0 when x = 3
Answer:
5,625
Step-by-step explanation:
Answer:
$86.25
Step-by-step explanation:
15% as a fraction and multiply that by 75 and then add that to 75.
