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3 years ago

A computer can burn 16 CDs in 48 minutes. How many CDs cand the computer burn in 1 1/5?

Mathematics

1 answer:

andrew11 [14]3 years ago

3 0

Answer:

24 CDs.

Step-by-step explanation:

1 1/5 hours = 72 minutes.

By proportion the number of CD's produced in 72 minutes

= 72/48 * 16

= 3/2 * 16

= 48/2

= 24 CDs.

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Solve for x x + 6=18

Verizon [17]

X=12

This is because you subtract 6 from both sides to get the x isolated.

So x=18-6

x=12 :)

6 0

3 years ago

-7-2x=7(x+8) <br><br> What is the answer for this expression

sertanlavr [38]

Answer:

x=-7

Step-by-step explanation:

1. Distribute the 7 into the parenthesis: -7-2x=7x+56

2. Combine like terms by doing the opposite operation to the numbers: -7=9x+56 (added 2x to 7x)

3. Subtract 56 to each side of the equation: -63=9x

4. To isolate the variable "x," divide each side by 9: x=-7

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3 years ago

Let f(x)=3x2-2 wrote a function g whose graph is a reflection in the y axis of the graph of f

lorasvet [3.4K]

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Answer:

g(x) = 3x^2 -2

Step-by-step explanation:

Reflection in the y-axis replaces x with -x.

g(x) = f(-x) = 3(-x)^2 -2

g(x) = 3x^2 -2

_____

The given function is symmetrical about the y-axis, so its reflection is itself.

6 0

2 years ago

Alan bought 20 yards of fencing. He used 5.9 yards in one garden and 10.3 in another. Write remaining as a fraction in simplest

Over [174]

Its 3.8 because if you add 5.9 and 10.3 is 16.2, and if you subtract it by 20, it should equal 3.8.

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3 years ago

Read 2 more answers

Ron's recycle shop had an old paper-shredding machine. Business was good, so he bought a new paper-shredding machine. The old ma

levacccp [35]

Answer: 1 hour 20 minutes

Step-by-step explanation:

Given : The old machine could shred a truckload of paper in 4 hours.

Rate of work done by old machine = $\dfrac{1}{4}$

The new machine could shred the same truckload in 2 hours.

Rate of work done by new machine = $\dfrac{1}{2}$

Let 't' be the time taken by both of them working together , then we have the following equation:-

$\dfrac{1}{t}=\dfrac{1}{4}+\dfrac{1}{2}\\\\\Rightarrow\dfrac{1}{t}=\dfrac{1+2}{4}\\\\\Rightarrow\dfrac{1}{t}=\dfrac{3}{4}\\\\\Rightarrow t=\dfrac{4}{3}=1\dfrac{1}{3}\ \text{ hours}$

Since 1 hour = 60 minutes

Then, $\dfrac{1}{3}\ \text{ hours}=\dfrac{1}{3}\times60=20\text{ minutes}$

Hence, it will take 1 hour 20 minutes to shred the same truckload of paper if Ron runs both shredders at the same time.

8 0

3 years ago