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pantera1 [17]
2 years ago
7

This morning, Josh's car had 19.22 gallons of fuel. Now, 5.3 gallons are left. How much fuel did Josh use?​

Mathematics
2 answers:
AleksAgata [21]2 years ago
8 0

Answer:

13.92 gallons

Step-by-step explanation:

To figure this out you need to do 19.22-5.3 because 19.22 is how much fuel you started with and 5.3 is how much you have now. So by subtracting them, you can find the amount of fuel he used. 19.22-5.3=13.92

Viefleur [7K]2 years ago
3 0

Answer:

He used 13.92 gallons of gas.

Step-by-step explanation:

19.22-5.3=13.92

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Flauer [41]

Answer:

x = -7 2/3, y = 1 1/3 and z = 5 1/3.

Step-by-step explanation:

2x+4y+3z=6    .....  1

x-2y+z=-5        ...... 2

-x-3y-2z=-7      .......3

Add equations 2 and 3 to eliminate x:

-5y - z = -12   .....4

Multiply equation 2 by - 2:

-2x + 4y  - 2z = 10

Add this to equation 1:

8y + z = 16   ........ 5

Now add equation 4 to equation 5:

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y = 4/3 = 1 1/3.

Now find z by substituting for y in equation 4:

-5(4/3) - z = -12

z = 12 - 20/3

z = 36/3 - 20/3 = 16/3 = 5 1/3.

Finally, we find x by substituting for y and z in equation 1:

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2x = 6 - 16/3 - 16

2x =  18/3 - 16/3 - 48/3 = -46/3

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Step-by-step explanation:

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Step-by-step explanation:

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Step-by-step explanation:

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Answer:

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