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Firlakuza [10]
2 years ago
12

10 points

Mathematics
1 answer:
dsp732 years ago
4 0

Answer:

A

Step-by-step explanation:

I hope this helps and sorry if I'm wrong!

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14(5-1/5×25)+2÷4×1 How Do I Evaluate This Expression ?
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Use the distributive property and multiply everything in the parentheses by 14.
Leaving you with.. (70 - 3.5 x 350) + 2 / 4 x 1.
Then reduce the parentheses. 
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Then divide 2 by four.
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7 0
3 years ago
Please help me with this MATH question.
Pie

Answer:

g= -2

Step-by-step explanation:

3 0
3 years ago
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3. Theresa has 20 coins that are dimes and quarters. Together
KiRa [710]

Answer:

  • 15 dimes
  • 5 quarters

Step-by-step explanation:

Let q represent the number of quarters Theresa has. Then the value of her coins is ...

  0.25q + 0.10(20 -q) = 2.75

  0.15q = 0.75 . . . . . . . . . subtract 2.00, collect terms

  q = 0.75/0.15 = 5

Theresa has 5 quarters and 15 dimes.

3 0
3 years ago
Ben made a model (shown below) of the square pyramid he plans to build when he grows up.
elena-s [515]

Answer:

336 m^2

Step-by-step explanation:

The surface area of a square pyramid is the sum of the area of the squared base + 4 times the area of each triangular face, therefore:

A=A_b + 4A_t

where:

A_b=L^2 is the area of the base, where

L is the length of the base

A_t=\frac{1}{2}Lh is the area of each triangular face, where

h is the height of the face

Substituting,

A=L^2+2Lh

For the model in this problem,

L = 12

h = 8

Therefore, the surface area here is:

A=12^2 +2(12)(8)=336

4 0
3 years ago
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Square root of 256 is
miskamm [114]

Answer:

16

Step-by-step explanation:

7 0
2 years ago
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