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Sergeu [11.5K]
3 years ago
5

Are (99 – 11 + 10g) - (12 - 119 + 13) and -3(-10g + 12) equivalent expressions? Explain.

Mathematics
1 answer:
Crank3 years ago
5 0

Answer:

)99-11+10g -12+119 -13= 182+10g

)30g-36

Step-by-step explanation:

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Your parents decide they would like to install a rectangular swimming pool in the backyard. There is a 15-foot by 20-foot rectan
Lilit [14]

Answer:

  • perimeter: 46 ft
  • area: 126 ft²

Step-by-step explanation:

Since the 3 ft edge is on both sides of the pool, each dimension of the pool is 6 ft shorter than the corresponding dimension of the space. The pool will be 15 ft -6 ft = 9 ft in one direction and 20 ft -6 ft = 14 ft in the other direction.

The perimeter of the pool is the sum of its side lengths:

  P = 9 ft + 14 ft + 9 ft + 14 ft = 2(9 ft +14 ft) = 2(23 ft)

  P = 46 ft

__

The area of the pool is the product of its length and width:

  A = (14 ft)(9 ft) = 126 ft²

The perimeter and area are 46 ft and 126 ft², respectively.

5 0
3 years ago
Al and barb each got to the store buy colored supplies.Al buys 11 colored pencils for $0.69 each and Barb buys 3 packs of folder
dolphi86 [110]
Barb spent more at the store.
7 0
3 years ago
The weight of a nickel is 80% of a quarter. If a nickel weighs 5 grams how much does a quarter weigh?
muminat

Answer:

Weight of a quarter  = 6.25 grams

Weight of a dime  = 2.5 grams

Step-by-step explanation:

The weight of a nickel is  80%

The weight of a quarter  or the weight of a nickel is 5 grams or weight of a quarter =50.8 = 6.25 grams

Weight of a dime = 50% = 12 (weight of nickel) = 52 = 2.5 grams

8 0
3 years ago
How do i find the scale factor?
AnnyKZ [126]

Answer:

1:3.7

Step-by-step explanation:

1331/27

Then cube root

3.66666666667

Round

3.7

(i believe)

8 0
3 years ago
Which type of function best models the given data?
kherson [118]

Answer:

3)

Step-by-step explanation:

Draw the graph and youll see

5 0
3 years ago
Read 2 more answers
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