A STORY OF UNITS Lesson 23 Problem Set

3.7

Mischa makes a 4 foot by 6 foot rectangular banner. She puts ribbon around the outside edges. The

ribbon costs $2 per foot. What is the total cost of the ribbon?

к

W

What I know-

What I want to know-

Is there a Special condition?

Type here each banner is 4 by Type here how much it will cos Type here- $2 per ft

6 ft and its $2 per ft

for two

The ribbon will cost $ _40_

Math is

AWESOME!

$40 will be the total cost of the ribbon.

Step-by-step explanation:

To find the cost of ribbon to be put on the edges of rectangular banner, we need to:

1. Find the perimeter of the rectangle.

2. Multiply the perimeter with the per foot cost to find the total cost.

Let us find the perimeter first:

Perimeter of a rectangle is given as:

Here, the dimensions of rectangle are 4ft by 6ft.

So, perimeter =

It is given that per foot cost is $2.

Total cost of the ribbon =

$40 will be the total cost of the ribbon.

first anwser choice.

step-by-step explanation:

the greater/less or equal to symbol (> or < with the line at the bottom) is a closed/filled in circle.

-5c + 2 _< _27

subtract from both sides by 2

-5c _< _ 27

divide both sides by -5

c _< _ 5.4

flip the inequality sign

c _> _5.4

the only possible answer that would match the simplified inequality is the first answer choice

answer: -8.2562234e+13