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3 years ago

11

The number n is doubled and then has y added to it. The result is then divided by 2 and has the number n subtracted from it, the

final result is

1 answer:

marissa [1.9K]3 years ago

4 0

Answer:

$\frac{y}{2}$

Step-by-step explanation:

n is doubled: 2n

y added: 2n + y

divided by 2: n + $\frac{y}{2}$

n subtracted -> final resutl: $\frac{y}{2}$

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A company has two types of machines, type R and type S. Operating at a constant rate, a machine of type R does a certain job in

SashulF [63]

Answer:

The number of machines to complete job in 2 hours is 6.

Step-by-step explanation:

Using the relation of the rate of each one machine and knowing that adding up both rates.

$Rate R +Rate S= Rate total$

Rate R = $\frac{x}{36}$ 'x' is the job

Rate S = $\frac{x}{18}$ 'x' is the job

So, using the equation of rates

$Rate total =\frac{x}{36} + \frac{x}{18}$

Rate total is going to be a job in 2 hours so = $\frac{1}{2}$

$\frac{1}{2} = \frac{x}{36}+\frac{x}{18}$ <em>adding up</em>

$\frac{1}{2}= x*\frac{3}{36}$ <em>factoring the x</em>

$\frac{1}{2}= x*\frac{1}{12}$ <em>simplifying</em>

x= $\frac{12}{2} \\$

x= 6

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You build and sell toy cars for $36 each. So far, you have built 25 toy cars. How many more toy cars will you have to build and

vovikov84 [41]

You need to build 20 more toy cars

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3 years ago

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Four balls of wool will make 8 knitted caps. How many balls of wool will Malcom need if he wants to make 6 caps.

julia-pushkina [17]

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He needs 3 balls of wool to make 6 caps

Step-by-step explanation:

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3 years ago

12=15(z−51)<br> What is Z

professor190 [17]

Answer:

51.8

Step-by-step explanation:

Multiply 15 by z and -51 which would equal (15z-765).

Add 765 to 12 and that equals 777

Divide 777 by 15 which would equal 51.8

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