AnswersGrade 7 MathematicsMultiplication and Division Equations

Multiplication and Division Equations — Quiz Answers

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Which shows how to solve the equation 3 fourths x is equal to negative 6 for x in one step?

A
4 3 fourths x is equal to negative 6 times 4
B
4 thirds 3 fourths x is equal to negative 6 times 3 fourths
C
4 thirds 3 fourths x is equal to negative 6 times 4 thirds
D
4 3 fourths x is equal to negative 6 times 3
3

Jada solved the equation negative 4 ninths is equal to x over 108 for x using the given steps. What was Jada’s error? Jada’s Work negative 4 ninths is equal to x over 108 negative 4 ninths times open paren negative 9 fourths close paren is equal to x over 108 times open paren negative 9 fourths close paren x is equal to negative 1 over 48

A
The product of negative 9 fourths and 108 should have been the value of x .
B
Jada should have multiplied both sides of the equation by negative 4 ninths .
C
The product of negative 9 fourths and 1 over 108 is not equal to negative 1 over 48 .
D
Jada should have multiplied both sides of the equation by 108 .
5

Adam’s car traveled 465 point 3 miles on 16 point 5 gallons of gas. Which equation can be used to determine the average number of miles that the car traveled on each gallon of gas?

A
x over 16 point 5 is equal to 465 point 3
B
465 point 3 x is equal to 16 point 5
C
16 point 5 x is equal to 465 point 3
D
x over 465 point 3 is equal to 16 point 5
6

Amit solved the equation 5 over 12 is equal to negative x over 420 for x using the steps shown. What was Amit’s error? Amit’s Work 5 over 12 is equal to negative x over 420 5 over 12 times 420 is equal to negative x over 420 times 420 x is equal to 175

A
The product of 5 over 12 and negative 420 should have been the value of x .
B
Amit should have multiplied both sides of the equation by 5 over 12 .
C
The product of 5 over 12 and 420 is not equal to 175 .
D
Amit should have multiplied both sides of the equation by 12 fifths .
7

What is the value of x in the equation negative 2 point 4 x is equal to 8 point 4 ?

A
3 point 5
B
negative 20 point 1 6
C
20 point 1 6
D
negative 3 point 5
9

Malia split up the large container of salsa that she bought equally into 5 bowls to place around her house for the party. If each bowl contained 8 point 5 ounces of the salsa, which shows the correct equation and value of x , the total amount of salsa in the original container?

A
5 x is equal to 8 point 5 ; x is equal to 42 point 5 ounces
B
x over 5 is equal to 8 point 5 ; x is equal to 1 point 7 ounces
C
x over 5 is equal to 8 point 5 ; x is equal to 42 point 5 ounces
D
5 x is equal to 8 point 5 ; x is equal to 1 point 7 ounces

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