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velikii [3]
3 years ago
14

What is the sum of 3x10

Mathematics
2 answers:
marusya05 [52]3 years ago
8 0
The answer to 3 x 10 is 30. Think of it as 3 groups of 10. Each of the 3 groups has 10.
Alex3 years ago
8 0
3*10= 30. That is multiplication. But if you're adding it, 3+10= 13.
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Find the sum of the reciprocals of two consecutive even integers if the larger integer is x. please answer;-;​
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Step-by-step explanation:

Let the larger integer be x

Hence, the smaller integer = x-2

Hence,

Reciprocal of the x= 1/x

Reciprocal of x-2= 1/ x-2

Hence. their sum=

\frac{1}{x}  +  \frac{1}{x  - 2}  \\  =  \frac{x - 2 + x}{x(x - 2)} \\  =  \frac{2x - 2}{ {x}^{2}  - 2x}

4 0
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7 0
3 years ago
I Need help with question 21 and 22 !
USPshnik [31]
11) First, add 74 and 43.

74+43=117

Subtract 117 from 180. Do this because this will give you the value of angle 1. This is because the sum of the angles in a triangle will always add up to 180 degrees.

180-117=63

Angle 1 = 63 degrees

Angle 2 also equals 63 degrees, because they are vertical angles.

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63+79=142

Subtract 142 from 180

180-142=38

Angle 3 = 38 degrees

12)

First, subtract 56 from 180. Do this to find angle C. They are supplementary angles, so they will equal 180 degrees.

180-56=124

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7 0
3 years ago
Simplify <br> 7.2x10^3/1.8x10^7
spayn [35]

To simplify and solve this equation we must follow PEMDAS.

P=Parentheses

E=Exponents

M=Multiplication (from left to right)

D=Division (from left to right)

A=Addition

S=Substraction

We begin the process.

10^3=1000

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New equation looks like this:

7.2*1000/1.8*10000000

We then multiply

7.2*1000= 7200

7200/1.8=4000

4000*10000000= 40000000000

<em>So our final answer is 40000000000.</em>

Hope this helps!

P.S. I forgot this was scientific notation and I solved it a different way. But both ways give the same answer. Let me know if you want the other method.


3 0
3 years ago
Find the value of x to the nearest tenth.
Sedbober [7]
How do you expect us to answer your question if we dont know if it is an equation but 7.0
7 0
3 years ago
Read 2 more answers
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