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vitfil [10]
3 years ago
5

Reagan used 1,221 sq ft of wrapping paper to wrap gifts for everyone in her class. If each gift used the same amount of wrapping

paper and she wrapped 21 gifts, how much wrapping paper did she use for each gift?
Mathematics
2 answers:
ipn [44]3 years ago
8 0
She used 1221 wrapping paper for 21 gifts, so to find the individual amount, you would do:
1221/21
She used about 58.143 ft² of wrapping paper for each gift.
DaniilM [7]3 years ago
7 0
<span>regan would use 58.14 square feet for each gift

</span>
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I have no idea how to do this.
Anastasy [175]
The trick to solving problems with mixed units is to convert all of them into one unit or another, so:

There are 12 inches in a foot, so 72 inches = 6 feet.
To find the perimeter of a polygon, sum its sides.
Perimeter = 2 + 5 + 6 = 13 feet.

To find the area of a right triangle (which I assume the one in the picture is), we can use the following equation: A = 0.5 * base * height
There are 3 feet to one yard, so 6 feet = 2 yards.
Area = 0.5 * 2 * 1 = 1 yard^2
7 0
3 years ago
Multiply: 5x(2x4 – x3 + 3)
Leno4ka [110]

Answer:

10

x

5

A

−

5

x

4

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+

15

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Step-by-step explanation:

6 0
3 years ago
What is the measure of _C?
Pani-rosa [81]

Answer:

70°

Step-by-step explanation:

A+B+C=180°

70°+40°+C=180°

C=180°-110°

C=70°

4 0
3 years ago
Read 2 more answers
Simplify and state the excluded values:<br><br> 12x^3 - 12x/ 28x^3-56x^2+28x
Eddi Din [679]
<u>      12x³ - 12x      </u><u /> = 3/7 - 1/56x² - 3/7 = 3/7 - 3/7 - 1/56x² = -1/56x²
28x³ - 56x² + 28x
8 0
3 years ago
This question please i need help
grin007 [14]

Answer: the picture has no answer it's invalid but I will try:

X is a 90 degree angle other than that I can't do anything

Step-by-step explanation:

6 0
3 years ago
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