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blsea [12.9K]
2 years ago
7

Help meeeee this is due today ALOT OF POINTS IF YOU GET IT RIGHT its for a unit test aka alot of my grade and i have a c in this

class
The price of gas rose from $2.40 per gallon in January to $3.00 per gallon in April. What was the percent increase based on the original price?

Sara reduced the time it takes her to run a mile from 12 minutes to 8 minutes. Which is closest to Sara’s percent decrease in the time it takes her to run a mile?

At Marco's Pizza House it costs $4.00 to make a small pizza. If they intend to mark-up the pizza by 80% what will the cost be for customers?
Mathematics
1 answer:
Leya [2.2K]2 years ago
6 0

Answer:

1. is 25%

Step-by-step explanation:

3.00 - 0.6 = 2.4

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Simplify your answer
katrin [286]

Answer: x=4\\y=3

Step-by-step explanation:

y=4x-13\\2x+3y=17

Since our ''y'' is already isolated, you can simply plug ''y'' information into the second equation.

2x+3y=17\\2x+3(4x-13)=17\\2x+12x-39=17\\14x=17+39\\14x=56\\x=\frac{56}{14} \\x=4

Now we can use the first equation and replace ''x'' to find ''y''

y=4x-13\\y=4(4)-13\\y=16-13\\y=3

To prove that your values are correct, take any of the equations and replace their values.

y=4x-13\\3=4(4)-13\\3=16-13\\3=3

4 0
3 years ago
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Plug In The Values.
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