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4 years ago

if it takes two printers a total of 14 minutes to print 490 pages, what is the printing rate of the ink jet printer

Mathematics

1 answer:

Tom [10]4 years ago

8 0

Each printer is printing 17.5 sheets a minute so each printer is printing a total of 245 sheets in 14 minutes.

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WILL GIVE BRAINLIEST TO CORRECT ANSWER

Aliun [14]

Answer:

Total number of outcomes = 23

number of biology and art students = 2

number of biology students = 2

Since it is given that all the students study art,

number of possible outcomes = 2

probability = number of favorable outcomes/number of total outcomes.

= 2/23

Therefore probability that the selected student studies both art and biology is 2/23.

7 0

3 years ago

Simplify . (1/c + 1/h)/(1/(c ^ 2) - 1/(r ^ 2))

Marrrta [24]

Answer:

$\frac{\left(h+c\right)cr^2}{h\left(r^2-c^2\right)}$

Step-by-step explanation:

$\frac{\frac{1}{c}+\frac{1}{h}}{\frac{1}{c^2}-\frac{1}{r^2}}$

Combine $\frac{1}{c} + \frac{1}{h}$

$\frac{\frac{h+c}{ch}}{\frac{1}{c^2}-\frac{1}{r^2}}$

Combine the bottom, too.

$=\frac{\frac{h+c}{ch}}{\frac{r^2-c^2}{c^2r^2}}$

Apply the fraction rule

$=\frac{\left(h+c\right)c^2r^2}{ch\left(r^2-c^2\right)}$

Cancel

$=\frac{\left(h+c\right)cr^2}{h\left(r^2-c^2\right)}$

Therefore, $\frac{\left(\frac{1}{c}+\frac{1}{h}\right)}{\left(\frac{1}{\left(c^2\right)}-\frac{1}{\left(r^2\right)}\right)}:\quad \frac{\left(h+c\right)cr^2}{h\left(r^2-c^2\right)}$

5 0

3 years ago

The library has at least 5,000 books.Which inequality represents the number of book,b,at the library

Scilla [17]

I need answer choices

3 0

4 years ago

What is the smallest multiple 3 and 4 have in common

murzikaleks [220]

Their least common multiple is 12.

8 0

3 years ago

Can someone please help me with 3 and 4

Bess [88]

4 is a regular rhombus I think don't quote me on that. I am pretty sure though

5 0

3 years ago

Read 2 more answers