Answer:
40
Step-by-step explanation:
(252-12)/6=40
Answer:
she would receive X-2.95
Step-by-step explanation:
Answer: Choice C and Choice D
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Explanation:
- Choice A doesn't work because it the $1 should be $7 instead.
- Choice B doesn't work because it should be Elena spending $7 total on 3 notebooks and a $1 pen. The x is the amount per notebook.
- Choice C does work. If x is the number of grapes Noah gives each friend, then 3x is the total amount Noah gives over. Then 3x+1 is the number of grapes total. That +1 at the end is the grape Noah eats. We end up with 3x+1 = 7 because Noah starts off with 7 grapes.
- Choice D works also. The x is the number of hours for math, science and history each. So 3x is the combined time of those three classes. Add on 1 to get 3x+1 to represent all 7 hours, ie 3x+1 = 7.
- Choice E does not work. If it was her spending $7 on 3 markers and a $1 pen, then it would work.
Sometime you have to convert medicine amounts or maybe how much you have to cut something in surgery that you have to convert you also might use percentages figuring out the percent of something to go in a specific medication
Assume x books are produced.
Then let 53808 + 12.5x = 17328 + 20.5x
Solve for x:
x = 4560
