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3 years ago

Geometry!!!!!!!!!!!!!!!

Mathematics

1 answer:

Nimfa-mama [501]3 years ago

6 0

Answer:

x=4

Step-by-step explanation:

1. 7x+56=14x+28 using distributive property (with the number of stes you need to have, this may count as 2)

2. 56=7x+28 by subtracting 7x from each side

3. 28=7x by subtracting 28 from both sides

4. x=4 by dividng by 7

5. plug back into equation

7(4)+56=14(4+2)

28+56=14(6)

84=84

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If n=3 what would 4(2+n)-6 equal?

Annette [7]

Answer:

$14$

Step-by-step explanation:

$4(2+n)-6$

Replace n with 3:

$4(2+3)-6$

Solve brackets first:

$4\times 5-6$

Multiply next:

$20-6$

Subtract:

$14$

4 0

3 years ago

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3 years ago

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Nookie1986 [14]

Answer:

a: 8.2

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3 years ago

Find the distance between the points (1,8) and (9, 2).

grin007 [14]

Answer:

$distance = \sqrt{(x_{1} -x_{2})^2+(y_{1} -y_{2})^2 }\\\\$

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6 0

3 years ago

As a maintenance electrician, it takes you 40 minutes to rewire a motor. You have 6 motors to rewire.

bazaltina [42]

Answer:

The maintenance electrician takes 287.555555566667 hours to to rewire all the motors

Step-by-step explanation:

1. Calculate all of the minutes for all the numbers.

It takes you 26.6666667 minutes to rewire 2/3 of a motor.

It takes you 160 minutes to rewire 4 motors.

It takes you 266.666667 to rewire 6 2/3 motors

It takes you 7,200 minutes to rewire 180 motors

It takes you 9,600 minutes to rewire 240 motors

2. Add all of the minutes together.

26.666667 + 160 + 266.666667 + 7,200 + 9,600 = 17253.333334

It takes you 17253.333334 minutes to rewire 431.333333 motors

3. Convert minutes to hours

17253.333334/60 = 287.555555566667

It takes you 287.555555566667 hours to rewire all the motors

7 0

4 years ago