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BartSMP [9]
3 years ago
8

What is 20+20 this is a test

Mathematics
2 answers:
Butoxors [25]3 years ago
8 0
20+20=40
All you have to do is 2+2 which is 4 the 0+0 which is 0, then put that together and you get 40!
Hope I helped! :-)
sp2606 [1]3 years ago
7 0
                 20
              + 20
            ======
                 40

Easy...
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Two trains leave towns 474 kilometers apart at the same time and travel toward each other. One train travels13 km/m faster than
guajiro [1.7K]

Answer:

112 km/h

125 km/hr

Step-by-step explanation:

Distance = time * speed

Distance  = distance train 1 + distance train 2

474 = 2(s) + 2(s + 13)

Distribute

474 = 2s + 2s + 26

Combine like terms

474 = 4s + 26

Subtract 26 from both sides

448 = 4s

Divide both sides by 4

112 = s

s = 112 km/h

s + 13 = 125 km/hr

3 0
3 years ago
Multiply the polynomials (x + 4)(x + 4)
s2008m [1.1K]

Answer:

x^2 + 8x + 16

Step-by-step explanation:

(x + 4) (x+ 4) multiply x by x and x by 4.

x^2 + 4x

Then multiply 4 by x and 4 by 4.

4x + 16

Then combine like terms.

x^2 + 4x + 4x +16

x^2 + 8x + 16

6 0
3 years ago
Help me please thank yiu
Citrus2011 [14]

Answer:

Step-by-step explanation:

I think it is C

5 0
3 years ago
Read 2 more answers
Kerry has a net spendable income of $1,800 per month. She also has a significant amount of debt and payments of $150 per month.
Firdavs [7]
A the rent all together is
450 + 60 + 40 + 80 = 630
b the rent alltogether would be
500 + 50 + 40 + 70 = 660
the rent for c would cost

640 including everything
and the rent for d would be
475 + 50 + 40 + 35 = 60
so the answer would be D
hope this helped sorry for late answer
7 0
3 years ago
1. Solve exponential equations: ax=b, where a>0, a≠1, b>0
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Answer:

x=log_{a}b

5 0
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