Zach and Ginny are building model cars. Ginny’s car is 2 more than 3 times the length of Zach’s car. The sum of the lengths of both cars is

Question

Zach and Ginny are building model cars. Ginny’s car is 2 more than 3 times the length of Zach’s car. The sum of the lengths of both cars is 30 inches
Write an equation to determine the lengths of Zach’s and Ginny’s cars
3x + 2 = 30
x2 + 3x = 30
2x + 3 = 30
x + 2x + 3 = 30

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Serenity 2 weeks 2022-01-12T20:52:40+00:00 1 Answer 0 views 0

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    2022-01-12T20:54:00+00:00

    Answer:

    x+(3x+2)=30

    Step-by-step explanation:

    Let

    x —-> the length of Zach’s car

    y —-> the length of Ginny’s car

    we know that

    The sum of the lengths of both cars is 30 inches

    so

    x+y=30 —-> equation A

    Ginny’s car is 2 more than 3 times the length of Zach’s car

    so

    y=3x+2 —-> equation B

    substitute equation B in equation A

    x+(3x+2)=30

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