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CaHeK987 [17]
3 years ago
10

What is the sum of \-2 and \-18

Mathematics
1 answer:
Dominik [7]3 years ago
3 0

Answer:

-20

Step-by-step explanation:

-2 + -18 = -20

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The sum of two numbers is 40 and their difference is 6.5, what is their product? show work please
Finger [1]
Let b>a, 

a+b=40 so we can say a=40-b

We are told that b-a=6.5, using a found above in the equation gives us:

b-(40-b)=6.5

b-40+b=6.5

2b-40=6.5

2b=46.5

b=23.25, and since  a=40-b

a=40-23.25

a=16.75

So a=16.75 and b=23.25

check...

16.75+23.25=40, 40=40

23.25-16.75=6.5, 6.5=6.5

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3 years ago
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Answer:

Step-by-step explanation:

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for ratio,

cos A=12/13

6 0
3 years ago
Read 2 more answers
Divide<br> r2/r12<br><br> Answers<br><br> a. r10<br> b. 1/r6 <br> c. 1/r10<br> d.r8<br> e. r6
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Step-by-step explanation:

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