3 years ago

Would like to help me with my math homework?

Mathematics

1 answer:

Mekhanik [1.2K]3 years ago

7 0

Answer:

I could try to help

Step-by-step explanation:

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6.66 barred..........

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Which statement is an example of the Identify Property of Multiplication

andreev551 [17]

Answer:

7x7 + 49 so 7+7+7+7+7+7+7

Step-by-step explanation:

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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

kozerog [31]

Answer: C. 6

Step-by-step explanation:

Given : Time taken by Machine R to do the job = 36 hours

Time taken by Machine S to do the job = 18 hours

Let x be the number of each type of machine to do the job.

Then , according to the question the required equation will be :-

$\dfrac{x}{36}+\dfrac{x}{18}=\dfrac{1}{2}\\\\\Rightarrow\ x(\dfrac{1}{36}+\dfrac{1}{18})=\dfrac{1}{2}\\\\\Rightarrow\ \dfrac{x}{12}=\dfrac{1}{2}\\\\\Rightarrow\ x=\dfrac{12}{2}=6$

Hence, the number of machines of type R were used =6

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3 years ago

How to find the zeros of f(x)=5(2x-5)(5x+4)

Elenna [48]

If xy=0 we assume x and y equal 0

so

the zeros are wehre f(x)=0
0=5(2x-5)(5x+4)
set each to zero
5 is not equal 0 so we don't do that

0=2x-5
5=2x
5/2=x

0=5x+4
-4=5x
-4/5=x

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kolezko [41]

Answer:

y = -2

Step-by-step explanation:

y - 2 = -4

add 2 to both sides

y - 2 + 2 = -4 + 2

y = -2