Charlie tested three types of toy cars. He placed the cars on the same starting line on the same inclined plane. He released the three cars at the same time. He measured how far the cars traveled when rolling down the plane, to see which type of car rolled furthest. What is the independent variable in this experiment? A. the ruler used to measure distance

B. grade of inclined plane

C. type of car

D. Charlie

PLEASE ANSWERR

The correct answer is - option C. type of car.

Explanation:

An independent variable in any study, experiment, or research is a factor or variable which is the only factor that is manipulated or changed and directly affects the dependent variable. It is a factor that influences the result with the change in it.

In this case, there are all other factors are constant except the type of cars which is the independent variable as a change in it leads to the change in the distance of rolling.

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there are 35 white marbles

step-by-step explanation:

y- yellow marbles

4y + 5 = 45

subtract 5 from both sides

4y = 40

divide for from both sides

y = 10

plug in 10 to get 40 yellow marbles then subtract by 5 to get 35 marbles

thus there are only 10 yellow marbles