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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2022-01-12T20:52:40+00:00
2022-01-12T20:52:40+00:00 1 Answer
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Answer:
[tex]x+(3x+2)=30[/tex]
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
[tex]x+y=30[/tex] —-> equation A
Ginny’s car is 2 more than 3 times the length of Zach’s car
so
[tex]y=3x+2[/tex] —-> equation B
substitute equation B in equation A
[tex]x+(3x+2)=30[/tex]