4 years ago

Can u help me with number 7 if you get the brain thing

Mathematics

2 answers:

Ivenika [448]4 years ago

6 0

Answer is 3 1/2 I hope this helps. can you make me brainliest

Novosadov [1.4K]4 years ago

3 0

What I do or what I was taught, Add the proper fractions first.

1/2 + 1/4 + 3/4 = 3/2 or 1.5 then you add 2

2 + 1.5 is 7/2 or 3.5

So your answer should be 3 1/2 hours

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G(r)=−5r+13<br> g(3)=<br><br> I'm still confused on how to do this

SashulF [63]

If you're solving for g then move all terms to the left side and set equal to zero. Then set each factor equal to zero.

And your answer becomes $g=\frac{5r}{r-39}$

If you're solving for r then then move all terms to the left side and set equal to zero. Then set each factor equal to zero and your answer is $r=\frac{39g}{g-5}$