A copy machine can print 340 color copies every 8 minutes. Explain or show your reasoning.



A teacher printed 850 copies. How long did it take to print?

Answers

Answer 1

Step-by-step explanation:

340=8min

850=?(x)

340x=850×8

340x=6800

x=6800/340

x=20min

so..the teachertook 20 minute to print 850 copies

Answer 2
Simple:
340 copies every 8 minutes
Find copies per minute
340 / 8 = 42.5 copies/min
Now, to find out how long it took to print all 850 copies;
850 / 42.5 = 20 min.
It took 20 minutes.
Or
(850*8) / 340 = 20

Related Questions

2a^2 + 11a + 15 = 0 factorise

Answers

Answer:

The answer is (2a + 5)(a + 3).

Step-by-step explanation:

The steps are :

2a² + 11a + 15 = 0

2a² + 6a + 5a + 15 = 0

2a(a + 3) + 5(a + 3) = 0

(2a + 5)(a + 3) = 0

heyheyhey ( I HATE ONLINE SCHOOL STUFF)

Answers

Answer:

Same!

Step-by-step explanation:

Answer:

same

Step-by-step explanation:

plz help will give brainlyest

Answers

top one : frame A.

bottom one : 6 inches

Answer:

Give brainliest to the other person who answered

Step-by-step explanation:

Have a fantastic day!

Find the remainder using: synthetic division/substitution OR long division:
f(x) = 3x3 - 4x2 +5x-7 : (x-2)
0-57
Oo
O 11
O-25

Answers

Answer:

The remainder is 11

Step-by-step explanation:

Here, we want to find the remainder by using substitution

We start by equating x-2 to 0

x = 2

Substitute the value of x in the function

3(2)^3 - 4(2)^2 + 5(2) - 7

= 24-16+ 10 - 7 = 11

Find the sum of the first 7 terms of the following series, to the nearest integer.
6, 12/5, 24/25

Answers

Answer:

9.983796

Step-by-step explanation:

Every time, it becomes smaller by 5/2 (6 divided by 5/2 is 12/5.... 12/5 divided by 5/2 is 24/25)

So, the first seven terms are 6, 2.4, 0.96, 0.384, 0.1536, 0.06144, 0.024756. Add them together and your answer would be 9.983796

Pleaseeee mark me brainliest :))

Answer:

it would be 10

Step-by-step explanation:

A. Headphone World
B. Best Buy
C. Target
D. Not enough information to tell

Answers

Answer:

??? dont under stand

Step-by-step explanation:

Answer:

The correct answer is Target!

Step-by-step explanation:

12% off of $225 is $198

50% off of $250 is $125

25% off of $265 is $198.75

I only need the answer for NUMBER 6!!! PLEASEE HELP , ILL GIVE BRAINLIEST FOR THE RIGHT answer :) , just help me.

Answers

Answer:

285

Step-by-step explanation:

Hey so I believe it is £285
10% of 300 is 30
5% of 300 15
300 - 15=285


Adam bought a PS5 for $500 and is selling it to his friend at a 15%
markup. How much does his friend pay Adam for the PS5?

Answers

Answer:

575$

Adam being the scammer he is, does it at a 15% increased price. We will multiply.

500 x 1.15 = 575.

We get the 1.15 from 15%

help please will give brainiest

Answers

Answer:

the first one

Step-by-step explanation:

There are 30 total apples of red and 6 total apples of yellow what is the percentage of yellow apples of

Answers

Answer:

20%

Step-by-step explanation:

30:6=5

yellow apples - 1/5 of 30

20x5=100

20%/30=6

Please help me please please thank you

Answers

9514 1404 393

Answer:

  see below

Step-by-step explanation:

The idea is you're trying to find quotient values that get you close to the dividend value when they're multiplied by the divisor.

In the left panel, you are basically looking at 8/3 ≈ 2. Since that is 8 tens, the partial quotient is 2 tens, or 20. The value of that multiplied by the divisor (3) is what gets subtracted from 87 for the next effort.

That difference (27) is the new dividend at the top of the right panel. The line below it (-27) is the result of multiplying the partial quotient by 3. Hence, that partial quotient on the top line must be 9. We want the difference at the bottom of the right panel to be zero.

__

In case you didn't know already that 87/3 = 29, you could work backwards. Starting from 0 at the bottom right, you would fill in the boxes above that, then copy the top box in that panel (27) to the difference at the bottom of the left panel. Of course, the middle number there must be 60 for the difference to be 27. That is 3·20, meaning the partial quotient at left on the top line is 20.

find the two missing sides what is x and y

Answers

Answer:

y=6 , X = 8.48 which is 6 root 2

Given points H, I and J and HI = 9,1J = 9 and HJ = 16 . Are the three points collinear?​

Answers

Answer:

Yes, the three points are collinear.

Step-by-step explanation:

None.

because the three sides are congruent, what foes that make each angle measure according to the equilateral triangle theorem.

a 30 degrees
b 90 degrees
c 180 degrees
d 60 degrees

Answers

Answer : 60 degrees
Explanation: All triangles's angles add up to 180. Since all angles are equal, you can divide 180 by 3. 180/3 is 60

Answer:

60degrees

Step-by-step explanation:

Congruent means equal and equilateral triangle also means a triangle which has three sides equal.

So 60 degrees is the sides for each angle since when they are added they all add up to 180°

<AC=60°

<CB=60°

<AB=60°

60+60+60=180°

∆ABC=180°

Find the area of a circle with the radius of 3.5

Answers

area = 38.48 hope this helps
A = pi x r^2
A = pi x 3.5^2
A = 12.25 x pi
A = 38.5cm^2 (3sf)

The total cost for a chair, a desk, and a lamp is $562. The desk costs four times as much as the lamp and the chair costs $23 less than the desk. Find the cost of each item.

Answers

Ok I’m giving a educated guess here so $562 divided by 3 is 187.3 then you do 187.3-23 which would be 164.3 so if I’m correct it would be 164.3 for both the chair and the lamp and 187.3 for the desk also just a heads up the .3 would be .333333.... :) I will delete if I’m wrong

Jane and Chris sell candles to earn money. Jane spent $20 to create her candles and sells candles for $3 each. Chris spent $40 to create his candles and sells candles for $5 each. How many candles will Jane and Chris have to sell in order to earn the same profit?​

Answers

Answer:

10 candles

Step-by-step explanation:

Jane's caldles:

Cost = $20, Price = $3 per candle

Chris's candles:

Cost = $40, Price = $5 per candle

Profit, if equal per x candles is:

3x - 20 = 5x - 405x - 3x = 40 - 202x = 20x = 10

Each will have profit of $10 if 10 candles sell

John decided to look at new and used cars. John found a used car for $6000. A new car is $18000, so what percent of the price of a new car does John pay for a used car? Round your answer to the nearest tenth if necessary.

Answers

John decided to look at new and used cars. John found a used car for $6000. A new car is $18000, so what percent of the price of a new car does John pay for a used car? Round your answer to the nearest tenth if necessary.

Answer:

The answer is 3%.

Step-by-step explanation:

6,000 x 3 = 18,000.

18,000 / 6,000 = 3.

Nixon estimates it will take him 5 hours to finish an art project.It actually takes him 320% of the time estimated.How many hours did it take him to finish the project?

Answers

Answer:

16hours

Step-by-step explanation:

Amount of hours Nixon took = 5hours

If it takes 320 % of his time, then he took him 320% of 5hrs to finish

This is express as shown

320% of 5

= 320/100 ×5

= 320/20

= 16

Hence it took him 16 hours

Answer:

Step-by-step explanation:

320/100 = 3.2

3.2 x 5

=16

To make an equation, you need the _________ and the y-__________. If you only have 2 points, first get the __________, then use point-slope form.

Answers

Answer:

To make an equation, you need the slope and the y-intercept. If you only have 2 points, first get the slope, then use point-slope form.

Explanation:

Equations written in slope-intercept form (y=mx+b) require two pieces of information: the slope and the y-intercept, which is where the line crosses the y-axis. Point-slope form also involves the slope, which can be found from the two given points.

Please help me! Only answer if you know it and I’ll mark you brainiest

Answers

Answer:

BD = 13x +27

Step-by-step explanation:

according to the rectangle theory

the diagonals of a rectangle bisect each other.

thus,

AC = BD

we can write AC as AE+ CE

11x -18 + 2x+45 = BD

13x + 27 = BD

hope it helps:)

Can someone please answer this with step please.

Answers

Answer:

It is the sedond one

Step-by-step explanation:

7n, 4n because they have the same variable, n.

HELP ASAP ! 15 POINTS

Answers

Answer:

D.

Step-by-step explanation:

The dark triangle is 6cm and the light is 10.5cm

Answer:

D 16.5

Step-by-step explanation:

6x2=12 divided by 2 equal 6. Answer to left triangle

7x3=21 divided by 2 equal 10.5 answer to right

Then add 10.5 +6= 16.5

Find the total surface area of this triangular prism.
17 cm
8 cm
2 cm
15 cm

Answers

Answer:

200cm²

Step-by-step explanation:

Total surface area of the prism = bh + L(s1+s2+s3)

b is the base of the triangle = 15cm

h is the height of the triangle = 8cm

Perimeter of the triangular base = s1 + s2 + s3 = 8+17+15

Perimeter of the triangular base = 40cm

L is the lateral height = 2cm

Substitute the given values into the formula;

Total surface area of the prism = 15(8) + 2(40)

Total surface area of the prism = 120+80

Total surface area of the prism  = 200cm²

Hence the total surface area of the prism is 200cm²

A man walks for x hours at a speed of
(x + 1) km/h and cycles for (x - 1) hours at
a speed of (2x + 5) km/h. If the total distance
travelled is 90 km, x

Answers

Given:

A man walks for x hours at a speed of  (x + 1) km/h and cycles for (x - 1) hours at  a speed of (2x + 5) km/h.

Total distance  travelled is 90 km.

To find:

The value of x.

Solution:

We know that,

[tex]Speed=\dfrac{Distance}{Time}[/tex]

[tex]Speed\times Time=Distance[/tex]

A man walks for x hours at a speed of  (x + 1) km/h, so walking distance is

[tex]D_1=(x+1)(x)[/tex] km

The man cycles for (x - 1) hours at  a speed of (2x + 5) km/h, so the cycling distance is

[tex]D_2=(2x+5)(x-1)[/tex] km

Now,

Total distance = 90 km

[tex]D_1+D_2=90[/tex]

[tex](x+1)x+(2x+5)(x-1)=90[/tex]

[tex]x^2+x+2x^2-2x+5x-5-90=0[/tex]

[tex]3x^2+4x-95=0[/tex]

[tex]3x^2+19x-15x-95=0[/tex]

[tex]x(3x+19)-5(3x+19)=0[/tex]

[tex](3x+19)(x-5)=0[/tex]

[tex]3x+19=0\text{ and }x-5=0[/tex]

[tex]x=\dfrac{-19}{3}\text{ and }x=5[/tex]

Time cannot be negative. So, the only possible value of x is 5.

Help please!
The numbers are 152° and 28°

Answers

Answer:

62

Step-by-step explanation:

152-90= 62

HELP DUE IN 15 MIN


x =

Answers

Answer:

x=7

Step-by-step explanation:

write -2+16x+9x+7=180

then add all like terms (-2+7=5) and (16x+9x=25x)

5+25x=180

-5. -5

25x=175

/25. /25

x=7

Answer:

180=-2+16x+9x+7

180=25x+5

-5. -5

175=25x

175/25=25x/25

7= x

Step-by-step explanation:

help me please i will mark brainliest if correct

Answers

Answer:

7 x 2 + 31

Step-by-step explanation:

Equals to the bottom line answer is 7

Please help!!
Find the rate of change

Answers

Answer:

Rate of change is 2

How I got the answer:

rate of change: [tex]\frac{y2-y1}{x2-x1}[/tex]

Lets use :

(1,3)

(2,5)

[tex]\frac{5-3}{2-1} =\frac{2}{1} =2[/tex]

Brainly plz :)

Kyle can write a 300-word essay in an hour. At that rate, if he writes an essay in 10 minutes, how many words will it contain?

Answers

50. Hope that helps. Is correct

Answer: 50 Words

Step-by-step explanation: We know Kyle can write a 300-word essay in an hour or 1 hour. We want to know how many words Kyle would have in his essay if he wrote one in 10 minutes.

First, find how many words Kyle can write per minute. Simply do this by dividing 300 by 60, since there are 60 minutes in a hour.

300/60 = 5. So, Kyle can write 5 words per minute.

Now, simply multiply 5 by 10 to find how many words Kyle would write in 10 minutes.

5 x 10 = 50. So, Kyle can write 50 words in his essay if he writes for 10 minutes.

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