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Oksanka [162]
3 years ago
13

HELP ME PLEASE I BEG YOU!!!!!!!!!!!!!

Mathematics
2 answers:
Marrrta [24]3 years ago
8 0
The answer to this are:
1) D
2) A and B
3) C

hope this works.
katrin [286]3 years ago
3 0

3.) r=2: 2+4/15= 6/15=2/5

2.) -3a-15=a: the fraction is negative. meaning the answer is negative, leaving a and c as choices. You can't square a since it is on different sides of the equation leaving you with c.

1.) answer is 5(x+4)=30: 3 is 2, meaning you would use the 2. 

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Will give brainliest answer!
kifflom [539]
5x + 60y = 35

x +y = 1.5 : rewrite as x = 1.5-y   and substitute this formula for x in the first one:

5(1.5-y) + 60y = 35

distribute:

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combine like terms:

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 he walked for 1 hour


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