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kodGreya [7K]
2 years ago
15

How many solutions does the system of linear equations have? Use the drop-down menus to explain your answer.

Mathematics
1 answer:
baherus [9]2 years ago
8 0
1 solution
different
intersect
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A family has two cars during one particular week the first car consume 25 gallons of gas and the second consumed 15 gallons of g
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Answer: the efficiency of the first car is 25 miles per gallon.

the efficiency of the second car is 30 miles per gallon.

Step-by-step explanation:

Let x represent the efficiency of the first car.

Let y represent the efficiency of the second car.

Distance = car efficiency × number of gallons.

The first car consume 25 gallons of gas and the second consumed 15 gallons of gas. The two cars Drove a combined total of 1075 miles. It means that

25x + 15y = 1075- - - - - - - - - - -1

The sum of the fuel efficiencies was 55 miles per gallon. It means that

x + y = 55

Substituting x = 55 - y into equation 1, it becomes

25(55 - y) + 15y = 1075

1375 - 25y + 15y = 1075

- 25y + 15y = 1075 - 1375

- 10y = - 300

y = - 300/-10

y = 30

x = 55 - y = 55 - 30

x = 25

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3 years ago
Need help on this to!! thanks <33
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4) n=12 this is because 45/4=11.25 and dividing 135 by 11.25 equals to 12

5) n=2.5 this is because 5/2=2.5 and multiplying 1 by 2.5 equals to 2.5

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