Ask question

Ask question

All categories

3 years ago

15

One file clerk can file 10 folders per minute. A second file clerk can file 11 folders per minute. How many minutes would the tw

o clerks together take to file 672 folders?

1 answer:

pochemuha3 years ago

8 0

Answer:

32 Minutes

Step-by-step explanation:

Together the two clerks can file 21 files per minute (10+11=21).

Therefore to file 672 folders would take 32 minutes (672/21=32)

You might be interested in

PLZ ANSWER QUICK!!

astraxan [27]

Question: How did views on land affect how slaves were treated in Africa compared to the Americas?

Answer: B. Slaves had a harder time cultivating the terrain in Africa.

5 0

2 years ago

Read 2 more answers

Find the slope of the line graphed below.

lozanna [386]

Answer:

slope is 7/3

Step-by-step explanation:

rise/run

7/3

4 0

2 years ago

Read 2 more answers

Which is closer to 7?

Anna [14]

Answer:

A. 5.3

Step-by-step explanation:

While both of these numbers are close to 7, 5.3 is the closest and we can find this out with subtraction. So, 9.9 - 7 = 2.9, but 7 - 5.3 = 1.7. Which one can we determine is closer? Well, 2.9 > 1.7, so our answer must be A. 5.3!

Have a nice day and I hope this helped!

8 0

3 years ago

Read 2 more answers

Solve the following system of equations for a and for b:

viktelen [127]

Answer:

$a=3\\b=1$

Step-by-step explanation:

$9a+3b=30\\8a+4b=28$

Let's solve the second equation for a to later on replace it in the first equation.

$8a+4b=28\\8a=28-4b\\a=\frac{28-4b}{8}$

Now plug this into the first equation.

$9a+3b=30\\9(\frac{28-4b}{8})+3b=30$

Distribute the 9

$(\frac{252-36b}{8}) +3b=30$

Break down the fraction.

$\frac{252}{8}-\frac{36b}{8}+3b=30$

Simplify.

$\frac{63}{2}-\frac{9}{2}b+3b=30$

Subtract $\frac{63}{2}$

$-\frac{9}{2}b+3b=30-\frac{63}{2}$

Combine like terms.

$\frac{-9+2*3}{2}b=\frac{30*2-63}{2}$

$\frac{-9+6}{2}b=\frac{60-63}{2}$

$\frac{-3}{2}b=\frac{-3}{2}$

Muliply by the reciprocal or inverted fraction next to b.

$(-\frac{2}{3})(-\frac{3}{2}) b=-\frac{3}{2}(-\frac{2}{3})$

$b=1$

Now plug this value into any of the equations to find the value of a.

$8a+4b=28\\8a+4(1)=28\\8a+4=28\\8a=28-4\\8a=24\\a=\frac{24}{8}\\ a=3$

5 0

3 years ago

Tomas learned that the product of the polynomials (a + b)(a2 – ab + b2) was a special pattern that would result in a sum of cube

lana66690 [7]

<span>if a = 2x and b = 1

(2x)</span>³+1³ = (2x+1)(4x²-2x+1)

I hope this helps

6 0

3 years ago

Read 2 more answers