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nalin [4]
3 years ago
7

Each week you drive 150 miles.your car gets 25 miles to the gallon and gas prices are 3 per gallon.how much gas money will you s

pend on gas each week
Mathematics
2 answers:
Lubov Fominskaja [6]3 years ago
7 0
You will spend 21 dollars each week
tino4ka555 [31]3 years ago
5 0
150miles per week
25 miles per gallon
3 dollars per gallon

\frac{150miles}{1week}* \frac{1 gallon}{25miles}* \frac{3 dollars}{1 gallon}  =$18 dollars per week
(mile and gallons, since the are both on the top and bottom of the fraction cancel out, leaving us with dollars per week)

Answer=$18 per week
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mart [117]

Answer:

7/9

Step-by-step explanation:

5 0
2 years ago
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What solution do 2x2 - 13x + 21 = 0 and 2x2 + 9x - 56 = 0 have in common? Round your answer to the nearest tenth if necessary.
lys-0071 [83]
So if we want to know the common solution(s) to a system of 2 equations, So we can just set both equations equal to each other and solve for the x value(s). That’s where I start below;

2x^2-13x+21 = 2x^2+9x-56
2x^2 cancels out and moving everything to one side and anything with an x variable to the other side we have then;
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4 0
3 years ago
Suppose that the populations of the United States and China both increase by 12 million people in one year. What would be the re
Jlenok [28]

Question:

Suppose that the populations of the United States and China both increase by 12 million people in one year. What would be the relative change for each country? Answer to the nearest tenth of a percent (1 decimal place). Make sure that you fill in each answer area before checking "How Did I Do?".

If you assume that the U.S. population is about 300 million, an increase of 12 million would result in a relative change of Number %.

If you assume that China has about 1 billion people, an increase of 12 million would result in a relative change of Number %.

Answer:

The relative change of the United States and China is 4% and 1.2%, respectively.

Step-by-step explanation:

Given

Represent population with p. So, we have:

United States

\triangle p = 12\ million

p_1 =300\ million

China

\triangle p = 12\ million

p_1 =1\ billion

Required

Determine the relative change for each country

Relative change, C is calculated as:

C = \frac{\triangle p}{p} * 100\%

For United States

C = \frac{12\ million}{300\ million} * 100\%

C = \frac{12}{300} * 100\%

C = \frac{12 * 100}{300}\%

C = \frac{1200}{300}\%

C = 4\%

For China

C = \frac{12\ million}{1\ billion} * 100\%

C = \frac{12}{1000} * 100\%

C = \frac{12* 100}{1000} \%

C = \frac{1200}{1000} \%

C = 1.2\%

The relative change of the United States and China is 4% and 1.2%, respectively.

3 0
2 years ago
Suppose 123 people voted for Danny. If 55 of the votes were from girls what would be the ratio of voted from girls to votes from
PtichkaEL [24]
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8 0
3 years ago
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Please help got stuck again with this one Thank you
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The answer is 2 cubed so B
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