3 years ago

What is the percent decrease of 80 to 64

1 answer:

6 0

The amount of decrease is (80 - 64) = 16

The fraction of decrease is the fraction of the original amount that disappeared.

That fraction is (16 / 80) = 1/5 = 0.2

To change a decimal to a percent,
move the decimal point 2 places that way ==> .

0.2 = 20%

You might be interested in

(3x + 2y = 7<br> (7x-2y = 3

sineoko [7]

Answer for the equation by elimination

8 0

2 years ago

9.<br> 8 cm<br> 5.1 cm<br> 5.1 cm<br> 15 cm<br> 5 cm<br> 10 cm<br> Find the area and perimeter

Ganezh [65]

Answer:

of what tho

Step-by-step explanation:

6 0

3 years ago

a rectangular parking lot has length that is greater than the width the area of the parking lot is 160 square yards find the len

MissTica

Let 'w' represent the width of the parking lot, then 'w+6' represents its length

area = width * length

160 = w * (w+6)

solving for 'w' we have a positive value of w=10

10+6=16

the width of the parking lot is 10 yards, the length of the parking lot is 16 yards

3 0

3 years ago

An electrician leans an extension ladder against the outside wall of a house so that it reaches an electric box 22 feet up. The

jeka57 [31]

The ladder and the outside wall form a right triangle

The length of the ladder is 97.8 feet

<h3>How to determine the length of the ladder?</h3>

The given parameters are:

Distance (B) = 22 feet

Angle of elevation (θ) = 77 degrees

The length (L) of the ladder is calculated using the following cosine ratio

cos(θ) = B/L

So, we have:

cos(77) = 22/L

Make L the subject

L = 22/cos(77)

Evaluate the product

L = 97.8

Hence, the length of the ladder is 97.8 feet