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Setler79 [48]
3 years ago
12

+50 points quiz

Mathematics
2 answers:
Sholpan [36]3 years ago
7 0
I was trying but they got it
Sedaia [141]3 years ago
5 0

Answer:

wasting your points but hey these are the answers

Step-by-step explanation:

1) 72

2) 2

3) 30

4) 2

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Round 399<br> to the nearest ten and hundred
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400 is da hundred
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Is this answer right
ehidna [41]

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Step-by-step explanation:

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Question 8b , thanks
marta [7]

Answer:

Step-by-step explanation:

a = \frac{2b+1}{3b-1}

b = 2/3

2b + 1 = 2*\frac{2}{3}+1\\\\=\frac{4}{3}+1\\\\=\frac{4}{3}+\frac{3}{3}\\\\=\frac{7}{3}\\\\3b-1 = 3*\frac{2}{3}-1\\\\=2- 1 = 1\\\\\\

a = \frac{2b+1}{3b-1}\\\\a=\frac{\frac{7}{3}}{1}\\\\=\frac{7}{3}\\\\

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b)

\frac{2b+1}{3b-1}=a\\\\

Cross multiply,

2b + 1 = a*(3b - 1)

2b + 1 = a*3b - 3*a

2b + 1 = 3ab- 3a

2b = 3ab - 3a - 1

2b - 3ab = -3a  - 1

b(2 - 3a) = -3a - 1

b =\frac{-3a - 1}{2 - 3a}

3 0
3 years ago
The answer choices are
Fed [463]

Answer:

C

Step-by-step explanation:

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You earn $50 per day for babysitting plus $0.75 per mile that she has to drive for an equation to represent the situation and de
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