When Jennifer and Tom visit another country, they find two types of coins are used there, one with a Q on it and one with an E on it. Jennif

Question

When Jennifer and Tom visit another country, they find two types of coins are used there, one with a Q on it and one with an E on it. Jennifer has 13 Q coins and Tom has 5 Q coins and 7 E coins. If Jennifer’s coins have a total value of $0.65 and Tom’s coins have a total value of $3.75, what is the value of each type of coin?

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Hưng Khoa 4 years 2021-09-02T21:12:53+00:00 1 Answers 55 views 0

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  1. Nem
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    2021-09-02T21:14:22+00:00
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    Answer:

    q = $0.05

    e = $0.5

    Step-by-step explanation:

    13q = 0.65 equation 1

    5q + 7e = $3.75   equation 2

    in equation 1, divide both sides of the equation by 13

    q = 0.65 / 13 = 0.05

    Substitute for the value of q in equation 2

    5(0.05) + 7e = 3.75

    0.25 + 7e = 3.75

    collect like terms

    3,75 – 0.25 = 7e

    3.5 = 7e

    e = 0.5

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