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horsena [70]
3 years ago
11

Mr. Marco painted a picture with an area of 2 2/4 square feet. The painting is 2 feet long. What is the perimeter of the paintin

g?
Mathematics
1 answer:
mr_godi [17]3 years ago
7 0
Step 1: Replace the variables with numbers

A=lw
A=2(1.25)
A= 2.5 (Fraction 2 2/4)

Step 2: Use the perimeter formula (P=l+w+l+w or P=(l+w)2)

P=(l+w)2
P=(2+1.25)2
P=(3.25)2
P=6.5

Answer is 6.5 I hope this helped ^^
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A rectangular prism has a volume of 600 cubic inches.
choli [55]

Answer:

The length is 12 inches.

Step-by-step explanation:

The volume of a rectangular prism is given by:

V=LBH

It was given that; the rectangular prism has a volume of 600 cubic inches.

The height of the prism is 5 inches and the width is 10 inches.

We want to find the length of the rectangular prism.

We substitute V=600, H=5,and W=10 into the formula:

600=5×10×L

600=20L

L =  \frac{600}{50}

L = 12in

6 0
3 years ago
Find the circumfrance and the area of a circle with a 5 ft radius. Use the value 3.14
Crazy boy [7]

Answer:

Circumference is 2piR =31.4

Area is pir^2=78.5

Step-by-step explanation:

6 0
2 years ago
A zookeeper predicted the weight of a new baby elephant to be 250 pounds when it was born. The elephant actually weighed 282 pou
worty [1.4K]
About 11% - I first subtracted 250 from 282, to get 32. I then did 32/282 to get .11.... You round that out to about 11%
3 0
3 years ago
If a spherical ball is enlarged so that its surface area is 9 times greater than its original surface area, then the original ra
luda_lava [24]
The surface area of a sphere is A = 4 \pi r^{2} and if the original S.A was is enlarged to have it 9 times greater, the radius would be multiplied by 3 or roughly 2.99626 rounded off to 3.0. 

For example, let us assign values.
Let A=90

A= 90*9 = 810

90 = 4 \pi   r^{2} 

    and    810 = 4 \pi  r ^{2}

the first r is 2.68 and the second r is 8.03

then, \frac{8.03}{2.68} = 2.99626  or rounded off to 3.
6 0
3 years ago
HELP PLZ I NEED IT
vladimir2022 [97]

Answer:

false

Step-by-step explanation:

18 is not = to 21

3 0
3 years ago
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