Sarah is 3 years older than nine times Mario’s age. In 10 years, she will be 1 less than triple his age. Which equation can be used to

Question

Sarah is 3 years older than nine times Mario’s age. In 10 years, she will be 1 less than triple his
age. Which equation can be used to find Mario’s current age?

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Thiên Di 2 months 2021-07-26T10:53:13+00:00 1 Answers 0 views 0

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    2021-07-26T10:54:38+00:00

    Answer:

    3(9m + 13) – (m + 10) = 1

    Step-by-step explanation:

    Here, we want to write an equation we can use to find the age of Mario.

    Let the present age of Mario be M

    Age of Sarah is 3 years older than 9

    times Mario’s age

    Mario’s age is thus;

    9m + 3

    In ten years, she will be 1 less than triple his age

    In 10 years time, sarah age will be 9m +

    3 + 10 = 9m + 13

    Mario age will be m + 10

    Mathematically;

    3(9m + 13) – (m + 10) = 1

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