What does b equal? 1/3b+2=12 (1 over 3b+2=12)

Mathematics

2 answers:

Scilla [17]3 years ago

8 0

B=30
first subtract 2 from both sides
1/3b=10
multiply by 3 on both sides
b=30

Fed [463]3 years ago

3 0

I would begin by multiplying both sides by (3b+2) to get rid of your fraction. Thus giving us 1=36b+24. Subtract 24 from both sides: -23=36b. Divide each side by 36: b=-23/36.

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Joseph earns $15 for every lawn he mows. Is the amount of money he earns proportional to the number of lawns he mows? Make a tab

Vedmedyk [2.9K]

Given that Joseph earns $15 for every lawn he mows.

so if he mows lown 1 time then his earning = $15

if he mows lown 2 time then his earning = $15*2= $30

if he mows lown 3 time then his earning = $15*3= $45

if he mows lown 4 time then his earning = $15*4= $60

if he mows lown 5 time then his earning = $15*5= $75

So the required table will be:

From the table we can see that Joseph's earning increases by $15 each time so we can say that YES, the amount of money he earns proportional to the number of lawns he mows.