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Slav-nsk [51]
3 years ago
11

3a-13=47 a= pls help ive been stuck on this for an hower

Mathematics
2 answers:
kotykmax [81]3 years ago
7 0

3a-13=47

   +13 +13                 (You add 13 to both sides)

------------------

3a=60

/3    /3                     (Then, divide by 3 to both sides)

--------------

a=20

patriot [66]3 years ago
6 0

Hey there!

Explanation:

First, you had to do is add by 13 from both sides of an equation.

3a-13+13=47+13

Then, simplify or add by the numbers.

47+13=60

3a=60

Next, you can also divide by 3 from both sides of an equation.

\frac{3a}{3}=\frac{60}{3}

And finally, simplify and divide by the numbers,

60/3=20

*The answer must have a positive sign.*

\boxed{a=20}

Hope this helps!

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x+y=10

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Answer:

the slope of this line is 0

hope it helps

Step-by-step explanation:

Is the horizontal line edging upward; that is, is it an increasing line? No, so its slope can't be positive. Is the horizontal line edging downward; that is, is it a decreasing line? No, so its slope can't be negative. What number is neither positive nor negative?

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3 years ago
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As there is one math problem over there.

Lets see the question first:

It says that "A hair dryer is rated 1200\ W,if you use the dryer for 0.25\ h.How much electric energy do you use ?"

Final answer = Electic energy =0.3\ kW\ h

Step-by-step explanation:

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The total amount of electrical energy used depends on the total power used by the electrical device and the total time they are used for.

So we have been given the power of the hair dryer =1200\ W =\frac{1200}{1000}=1.2\ kW

Now the time it has been use for =0.25\ hrs

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Answer:

1. Translate circle A using the rule (x − 3, y + 4).

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Step-by-step explanation:

we know that

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Translate the center of circle A to the center of circle B

we have

A(2,8) -----> B(5,4)

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The rule of the translation is

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step 2

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