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vichka [17]
2 years ago
14

A factory found that 8% of its produced light bulbs are defective.

Mathematics
1 answer:
Anastaziya [24]2 years ago
3 0

Answer:

40

Step-by-step explanation:

no. of defective light bulbs= 8/100×500

= 40

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Solve for x. -1/2 (x+5)=2x -3/2
Amiraneli [1.4K]

Start from

-\dfrac{1}{2}(x+5)=2x -\dfrac{3}{2}

It may be useful to multiply the whole expression by 2, in order to get rid of denominators:

-(x+5)=4x -3

Distribute the negative sign in the left hand side:

-x-5=4x -3

Move all terms involving x to the left, and all constants to the right:

-x-4x=-3+5

Sum like terms:

-5x=2

DIvide both sides -5:

x = -\dfrac{2}{5}

4 0
3 years ago
What is the equation of the line that passes through point (4, 12) and has a y-intercept of —2?
zmey [24]

Answer:

<h2>y = 3.5x - 2</h2>

Step-by-step explanation:

The slope-intercept form of an equation of a line:

<h3>y = mx + b</h3>

m - slope

b - y-intercept

We have y-intercept b = -2. Substitute:

<h3>y = mx - 2</h3>

We have the point (4, 12) → x = 4, y = 12. Put them in the equation:

12 = 4m - 2         <em>add 2 to both sides</em>

14 = 4m       <em>divide both sides by 4</em>

14/4 = m → m = 3.5

5 0
3 years ago
Read 2 more answers
Tom was selling his old games. He started out with 57 but sold 37 of them. He put the rest in boxes with 5 games in each. How ma
eduard

Answer:

Tom started out with 57 games but sold 37 of them.

=> Now, Tom has: 57 - 37 =20 games

He put the rest in boxes with 5 games in each.

=> The number of boxes: 20/5 = 4 box

Hope this helps!

:)

8 0
3 years ago
What is this -5/7 divide by -1/3
kow [346]

Answer:

15/7

Step-by-step explanation:

4 0
3 years ago
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What is the length of EF in the right triangle below?
Vinil7 [7]
Your question does not give enough information for me to answer
8 0
2 years ago
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