What is the volume, in cubic inches, of the baseball ?
1 answer:
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Answer:
a)
b) independent variable: x - number of DVDs rented
dependent variable: y - the monthly cost of rent of x DVDs
c) $26
Step-by-step explanation:
<u>Question:</u>
Your DVD membership costs $16 per month for 10 DVD rentals. Each additional DVD rental is $2.
a. Write an equation in two variables that represents the monthly cost of your DVD rentals.
b. Identify the independent and dependent variables.
c. How much does it cost to rent 15 DVDs in one month?
<u>Solution:</u>
Let x be the number of DVDs rented, and y be the monthly cost of rent of x DVDs.
a) For the first 10 DVDs you should pay $16 and for the next (x - 10) DVDs you have to pay additional $2 per DVD.
Then the total cost is
b) Independent variable is x, dependent variable is y (the cost depends on number of DVDs rented).
c) If x = 15, then
It will cost $26 to rent 15 DVDs.
Answer:
75
Step-by-step explanation:
If 75% of the students like skating, that means 35% of the students don't like skating.
35% of the students corresponds to 35 students that do not like skating.
Then to find the number of students who like skating we use the following logical computation,
35% represents 35 people then how much does 75% represent
⇒
=
Therefore,
The number of students who like skating was 75.