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Alchen [17]
3 years ago
6

Help needed

Mathematics
2 answers:
ivolga24 [154]3 years ago
6 0
I completely have no more points
lora16 [44]3 years ago
3 0

Answer: 570

Step-by-step explanation:

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the side length ofthe square porch behind macis house is (3x + 2) feet. The porch has a perimeter of (14x - 2) feet. What are th
andriy [413]

Answer:

The porch is 17 ft by 17 ft

Step-by-step explanation:

The perimeter of a square is

P = 4s where s is the side length

P = 4( 3x+2)

P = 12x+8

We know P = 14x-2

14x-2 = 12x+8

Subtract 12x from each side

14x-2 -12x = 12x+8-12x

2x -2 = 8

Add 2 to each side

2x-2 +2 = 8+2

2x= 10

Divide by 2

2x/2 = 10/2

x = 5

The side  is 3x+2

                 3*5+2

                  15+2

                   17

The porch is 17 ft by 17 ft

5 0
3 years ago
3. Nina has $20.14 in her purse. She buys lunch<br> for $9.67. How much does she have left?
o-na [289]

Answer:

Nina has $10.47 left.

Step-by-step explanation:

$20.14 minus $9.67 is $10.47

6 0
3 years ago
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rjkz [21]

Answer:

6

Step-by-step explanation

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Rasek [7]

Answer:

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Hope it helps...!!!

Step-by-step explanation:

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