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PSYCHO15rus [73]
3 years ago
11

An electrician bought 120 feet of electrical wire and used 105 feet of it what percent of wire went unused

Mathematics
2 answers:
Ede4ka [16]3 years ago
8 0

Answer:

Step-by-step explanation:

105/120= 0.875

In order to obtain a percentage, you move the decimal point to the right two spaces.

Therefore, 0.0875 will be 87.5%

What this tells you is that 87.5% of the wire was used.

So, 100%-87.5%= 12.5% of wire was left over/unused.

qwelly [4]3 years ago
6 0
The answer is B 12.5%
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Mrs. Terrace cut a small birthday cake into 6 equal pieces for 6 children. One child was not hungry, so she gave the birthday bo
ELEN [110]

Missing part of question:

Draw a tape diagram to show how much cake each of the five children received.

Answer:

See attachment

Step-by-step explanation:

Given

Equal\ Pieces = 6

Children = 5

Required

Tape diagram to represent the scenario

Because one child is not hungry, the number of children to share the cake becomes 6.

So, first we calculate the share of each child.

Share = \frac{Pieces}{Children}

Share = \frac{6}{5}

Share = 1.2

See attachment for tape diagram

The tape diagram implies that:

5 * 1.2 = 6

or

\frac{6}{1.2} = 5

or

\frac{6}{5} = 1.2

4 0
3 years ago
Help with math Plsss I don't understand how to do this (I got this wrong but I have another try)​
Anuta_ua [19.1K]
<h3>Answer: 920</h3>

=================================================

Explanation:

The front face is a triangle with area of base*height/2 = 15*8/2 = 60 square feet.

The back face is identical to the front face, so we have another 60 square feet.

The left rectangular wall is 20 ft by 8 ft tall. Its area is 20*8 = 160 ft^2

The right slanted rectangular face is 20 ft by 17 ft. Its area is 20*17 = 340 ft^2

Lastly, the bottom rectangle floor is 15 ft by 20 ft to give an area of 15*20 = 300 ft^2

------------------

To summarize so far

  • Front face = 60 ft^2
  • Back face = 60 ft^2
  • Left face = 160 ft^2
  • Right slanted face = 340 ft^2
  • Bottom floor = 300 ft^2

Add up those areas to get the overall surface area.

60+60+160+340+300 = 920

6 0
2 years ago
Read 2 more answers
The number of employees for a certain company has been decreasing each year by ​8%. If the company currently has 730 employees a
lana66690 [7]

Answer:

146

Step-by-step explanation:

730 divided by 100 equals 7.3 and 7.3 times 20 equals 146

4 0
3 years ago
Twelve increased by a number
pochemuha

Answer:

12+# OR 12+x

Step-by-step explanation:

Increased by 12 means plus 12. The word "is" in equations is an equal sign. So far, you have 2n+12. On the other side of the equal sign, you have 31 less than 3 times a number.

3 0
3 years ago
Determine the combined surface area of a cube with an edge that is 3.5 cm long and a cube with an edge that is 2 cm long.
Elis [28]

Answer:

97.5

Step-by-step explanation:

3.5cm cube surface area:

3.5*3.5*6 (the 6 faces of the cube) =

73.5

2cm cube surface area:

2*2*6 =

24

combined surface area:

73.5+24=

97.5

5 0
3 years ago
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