QUICK!!! HELP PLEASE!!!!

Mathematics

2 answers:

kvv77 [185]3 years ago

8 0

Answer:

0 —> 15

1 —> 13.75

2 —> 12.5

3 —> 11.25

Step-by-step explanation:

Every time she drives for 1 hour, the car uses up 1.25 gallons of gas. If she fills it up and doesn't drive anywhere, the car will still be full with 15 gallons. If she drives for an hour, you would need to subtract 1.25 from 15 which would equal 13.75.

Then if she drives another hour, then you would subtract another 1.25 from 13.75.

Or a quicker way to do it would be if you multiply the number of hours driven by the gallons used per hour then subtract it from the filled up tank.... So for example if she drove 3 hours —> 3•1.25=3.75 then 15-3.75=11.25

Digiron [165]3 years ago

4 0

Answer:

0 = 15

1 = 13.75

2 = 12.50

3 = 11.25

G = -1.25t + 15

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Số táo của An, Bình, Chi là như nhau. An cho đi 17 quả , Chi cho đi 19 quả thì lúc này số táo của Chi gấp 5 lần tổng số táo còn

soldier1979 [14.2K]

Answer:

So, the initial number of apples is 7.

Step-by-step explanation:

The number of apples of An, Binh, and Chi are the same. An gave away 17 apples, Chi gave away 19 apples, so now Chi's apples are 5 times higher than the total remaining apples of An and Binh. How many apples did each of you have at first? (Solve the above problem by equation or system of equations)

Let the initial numbers of apples is a.

An gave 17 apples

Chi gave 19 apples

So,

x - 19 = 5 (x - 17 + x)

x - 19 = 5 (2x - 17)

x - 19 = 10 x - 85

9 x = 66

x = 7

6 0

3 years ago

Plz Answer this question ASAP!