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Lina20 [59]
3 years ago
9

Solve 4 - 2(b-6)=12. What is b

Mathematics
2 answers:
Lynna [10]3 years ago
7 0
2b because you would have to multiply which b means 1 so it will be 2b.
Leto [7]3 years ago
3 0

Answer:

b=12

Step-by-step explanation:

4 - 2(b-6)=12

2(b-6)=12

2b-12=12

   +12+12

2b=24

/2   /2

 b=12

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The circumfrence of a ball is 60cm. The ball rolls 16.2m. How many times does the ball make one complete roll? 
valentinak56 [21]
1 roll=circumference

\frac{distance}{circumference} =rolls

\frac{16.2m}{60cm} =rolls

\frac{(16.2*100)cm}{60cm} =rolls

\frac{1620cm}{60cm} =rolls

27 = rolls

27times
4 0
3 years ago
01:14:29 The Schwartz family spent a total of $111.75 for Internet service for 3 months. Each month they received $5.50 as a cre
alexgriva [62]

Answer: 3(x minus 5.50) = 111.75; the monthly Internet service is $42.75

Step-by-step explanation:

Given the following :

Total amount spent on internet for 3 months = $111.75

Monthly credit received on bill = $5.50

Monthly Credit of $5.50 means $5.50 is deducted from the amount being paid on thir bill monthly.

Assume their monthly internet service fee = x

The amount paid before the credit deduction each month:

Amount paid - credit

(x - $5.50)

For 3 months :

3 × (x - $5.50) = $117.75

3(x - $5.50) = $117.75

Monthly fee paid before credit deduction:

3(x - $5.50) = $117.75

3x - $16.50 = $117.75

3x = $117.75 + $16.50

3x = $128.25

x = $128.25 / 3

x = $42.75

4 0
3 years ago
The total revenue from the sale of a popular book is approximated by the rational function, R(x)=1100x^2/x^2 + 4 where x is the
vazorg [7]

Answer:

The answer is below

Step-by-step explanation:

The total revenue from the sale of a popular book is approximated by the rational R(x) = 1100x^2/x^2 + 4, where x is the number of years since publication and the total revenue in millions of dollars. Use this function to complete parts a through d. (a) Find the total revenue at the end of the first year. $ million (b) Find the total revenue at the end of the second year. $ million (c) Find the domain of function R. Choose the correct domain below. {x | x is a real number and x greaterthanorequalto 0} {x | x is a real number and x lessthanorequalto 5} {x | x is a real number and x notequalto 2, x notequalto 5} {x | x is a real number and x notequalto 2}

Solution:

Revenue is the total money made from the selling of a product or item.

a) Given the revenue function:

R(x)=\frac{1100x^2}{x^2+4}

At the end of the first year (i.e. x = 1), the venue is given as:

R(1)=\frac{1100(1)^2}{(1)^2+4} =220\\\\R(1)=\$ 220\ million

b) At the end of the second year (i.e. x = 2), the venue is given as:

R(2)=\frac{1100(2)^2}{(2)^2+4} =220\\\\R(2)=\$ 550\ million

c) The domain of the function is the value of the denominator for which the value of the denominator is not zero

x² + 4 ≠ 0

The domain is {x| x is a real number and x ≥ 0}

3 0
2 years ago
In 12 hours, the temperature fell steadily from 17degrees to -7degrees f. what was the average change in temperature per hour?
Zarrin [17]
If the temperature changed from 17 degree F to -7 , the change was
17+7=24 degrees F
the average change was 24/12=2 , 2 degrees per hour 
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7 0
3 years ago
Jackrabbits are capable of reaching speeds up to 40 miles per hour. How fast is this in feet per second? (Round to the nearest w
vitfil [10]
58.6667
Underline the 6 and remove the other 2 though

8 0
3 years ago
Read 2 more answers
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