77.4k views
5 votes
Jenna is planning to reduce the size of her rectangular poster so that she can also make a card out of the rest of it.

The width of the poster is 10 inches and the length is 17 inches. They want to see how the area will be affected if the length is reduced by r inches.



What is the width of the poster? 10 inches

What expression shows the value of the new length of the poster? (17−r) inches

What expression, in simplest form, shows the value of the new area of the poster? square inches

What expression shows the value of the planned area of the card? square inches

User Waves
by
6.9k points

1 Answer

1 vote
What expression, in simplest form, shows the value of the new area of the poster?
10(17 - r) = (170 - 10r) square inches

What expression shows the value of the planned area of the card?
The planned area of the card is the difference between the initial area of poster and the new area of poster.
i.e. (10 x 17) - (170 - 10r) = 170 - 170 + 10r = 10r square inches.

User Dirk Scholten
by
6.3k points
Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.