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Firdavs [7]
3 years ago
8

Which operation is going to be performed first 3÷2+(10-2×4)​

Mathematics
2 answers:
sergejj [24]3 years ago
7 0

Answer:

parenthesis

Step-by-step explanation:

Hello!

To know what the order of operations is we go by PEMDAS

Parenthesis then Exponents then multiplication and division from left to right then addtion and subtraction from left to right.

Since parenthesis are in this equation we would do those first

The answer is parenthesis

Hope this helps!

Liula [17]3 years ago
6 0

Answer:

Multiplication

Step-by-step explanation:

Because in PEMDAS parenthesis comes first we know the first operation is going to be inside the parenthesis. We also have to apply PEMDAS inside the parenthesis, and multiplication comes before subtraction, so we know that's first.

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What is 8 by the power of -1
ElenaW [278]
x^{-m}=\frac{1}{x^m}

so
8^{-1}=\frac{1}{8^1}=\frac{1}{8}
5 0
3 years ago
Show that the ratios 10/20 and 30/60 from a proportion by finding a common multiplayer. Show that the ratios are equal by writin
Ratling [72]
5 can go into 10 and 20 so you just want to divide them by five which gives you 
2/4.

its still not simplified yet so 2 can go in to 2 and 4 so we divide them your answer should be 1/2

so your simplified answer for 10/20 is 1/2

so 10/20=1/2

same thing for 30/60

10 can go into 30 and 60 so we divide them by 10

you should get 3/6

its still not simplified 

3 can go into 3/6 so we divide them by 3

you should get 1/2

 so 30/60= 1/2




10/20 = 1/2. 

30/60 = 1/2



so your simplified answer for both of them is 1/2





I hope this helped!
7 0
3 years ago
I need to solve for the variables. 8th grade math. Thanks
spin [16.1K]

Use Photomath for the answers :)








7 0
3 years ago
Paul travel to the lake and back. The trip took 3 hours and the trip back took 4 hours He averaged 10 mph faster on the trip the
ollegr [7]

Answer:

  40 mph

Step-by-step explanation:

We assume "outbound" refers to the trip <em>to the lake</em>. The ratio of speeds is inversely proportional to the ratio of times, so ...

  outbound speed : inbound speed = 4 : 3

These differ by one ratio unit, so that one ratio unit corresponds to the speed difference of 10 mph. Then the 4 ratio units of outbound speed will correspond to ...

  4×10 mph = 40 mph

Paul's average speed on the outbound trip was 40 mph.

___

The distance to the lake was 120 mi.

4 0
3 years ago
Read 2 more answers
Hello please help thanks
Vladimir79 [104]

Answer:

Oceans and the Sun.

Step-by-step explanation:

Lakes and the sun is also a good answer, but the question is asking which interact the <em>most</em>, which is the ocean and sun.

We can also rule out the moon since it has nothing to do with the water cycle, so the last two options are also wrong.

5 0
3 years ago
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