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2 years ago

I don’t understand this, can somebody help?

Mathematics

1 answer:

Klio2033 [76]2 years ago

8 0

<h2>29)</h2><h2> $quarters = 13 \\ dimes = 25 \\ nickles = 18 \\ pennies = 30 \\ total \: coins = 86$ </h2>

$not \: penny \: or \: dime = quarter \: or \: nickle$

$p(x) = \frac{13 + 18}{86} = \frac{31}{86} = 0.36$

$gallons \: for \: car \: 1 = \frac{450}{18} = 25 \: gal$

$gallons \: for \: car \: 2 = \frac{450}{25} = 18 \: gal$

$we \: need \: 25 + 18 = 43 \: gallons$

$43 \times 2.49 = 107.07 \: dollars$

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Answer:

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3 years ago

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Since we want to get y alone on the left side, let’s add 2x on both sides

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Step 3: Now that we know how to find y, substitute that in where y is in the equation

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3 years ago

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ioda

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Step-by-step explanation:

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3 years ago

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