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Dahasolnce [82]
3 years ago
10

A bricklayer can build a wall of a certain size in 5 hours. Another bricklayer can do the same job in 4 hours. If the bricklayer

s work together, how long would it take to do the job?
a. 9h
b. 2(2/9)h
c. 20h
d. 4(1/2)h
Mathematics
1 answer:
Tju [1.3M]3 years ago
7 0

Answer:

b

Step-by-step explanation:

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4x-3+x=7x-3 solve x and show work easy to undertand please. Really appreciate it ^^
nalin [4]

Answer: x = 0

Step-by-step explanation:

4x − 3 + x = 7x − 3

Step 1: Simplify both sides of the equation.

4x − 3 + x = 7x − 3

4x + −3 + x = 7x + −3

(4x + x) + (−3) = 7x − 3(Combine Like Terms)

5x + −3 = 7x − 3

5x − 3 = 7x − 3

Step 2: Subtract 7x from both sides.

5x − 3 − 7x = 7x − 3 − 7x

−2x − 3 = −3

Step 3: Add 3 to both sides.

−2x − 3 + 3 = −3 + 3

−2x = 0

Step 4: Divide both sides by -2.

-2x/-2 = 0/-2

x = 0

3 0
3 years ago
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Write (x+1)÷x-(y+1)÷y as a simplified fraction ​
mina [271]

Answer:

\frac{y-x}{xy}

Step-by-step explanation:

y - x / xy

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3 years ago
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16. Model Real Life Your aunt and uncle
earnstyle [38]

The amount of each payment is $699.

What is payment?

Payment refers to the exchange of something of value as a condition of a contract. While one party pays money and receives something else of value, the other party gets paid in return for delivering a good or service. Physical currency was once the most common form of payment, but nowadays most forms of payment use technology.

Given: Buy 2 personal watercrafts for $3,495 each.

So, the price for 2 watercrafts is, 2 x $3495 = $6990

They make 10 equal payments for the watercrafts.

So each payment is of $6990/10 = $699.

Hence, the amount of each payment is $699.

To know more about payment, click on the link

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How to solve Which ordered pair is a solution for x − 3y = 1?
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There is no one answer (ordered pair) to this equation and the answer is found by graphing or trying out different values for each variable. Anyway, here are some solutions; (1,0), (4,1), (0,-1/3).
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Marking brainliest.
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Answer:

is nirvana considered indie? idrk--- but i listen to that band and a lot of rock songs :)

Step-by-step explanation:

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