Ask question

Ask question

All categories

3 years ago

6

By decreasing each dimension by 1 unit, the area of a rectangle decreased from 40 square feet (on the left) to 28 square feet

(on the right). Find the percent decrease in area.

1 answer:

BabaBlast [244]3 years ago

7 0

Attached a pic of the solution (s).

You might be interested in

Good Treads and Speed Tracks manufacture tires. Good Treads claims that their tires last longer than Speed Tracks tires. A car c

Crazy boy [7]

The answer is B... good treads claim is false therefore it can be concluded that speed tracks tires last longer than good treads tires

3 0

3 years ago

Read 2 more answers

Michelle needs to rent storage space for some of her belongings. She paid a one-

Lerok [7]

Answer:

c

Step-by-step explanation:

she pays a one-time fee of 50, and 15$ per month

7 0

2 years ago

A prism with a triangular base has a volume of 432 cubic feet. The height of the prism is 8

Rashid [163]

Answer:

9 feet

Step-by-step explanation:

Given:

A prism with a triangular base has a volume of 432 cubic feet.

The height of the prism is 8.

The triangle base has a base of 12 feet.

Question asked:

The height of the triangular base of the prism = ?

solution:

Volume of triangular prism = $Area of triangle \times height$

$432 = Area of triangle \times8$

Dividing both side by 8

$54 = Area of triangle$

$54 =$ $\frac{1}{2} \times base \times height$

$54 = \frac{1}{2} \times12\times height\\54 = \frac{12}{2} \times height$

Multiplying both side by 2

$108 = 12 \times height$

Dividing both side by 12

$9 = height$

Thus, height of the triangular base of the prism is 9

3 0

2 years ago

How much profit will a store make on the sale of a flat screen TV that is marked up by 30% and then sold at a 20% discount if th

notsponge [240]

The flat screen TV that is marked up by 30% and 20% discount had a profit of $60 after being sold.

The mark up percentage is given by:

Mark up percentage = (selling price - cost price)/cost price

Since the original price is $1500, hence:

30% = (selling price - 1500)/1500

0.3 = (selling price - 1500)/1500

(selling price - 1500) = 450

Selling price = $1950

It was again sold at a discount of 20%:

Final selling price= 1950 - 20% of 1950 = 1560

Profit = 1560 - 1500 = $60

Hence $60 profit was made by the store for the sale of a flat screen TV.

Find out more at: brainly.com/question/15699405

7 0

2 years ago

A total of 40 people made cakes for a bake sale. Each person made 3 cakes. Ms. Sanchez

Elena L [17]

18 chocolate cakes were made. 40(3)= 120 cakes in total. 15%=.15 .15(120)= 18

7 0

3 years ago