Mathematics Middle School

Krishaun has $5, $10, and $20 coins worth a total of $560. She has the same number of $5 coins as $10 coins, and the same number of $10 coins as $20 coins. How many $20 coins does Krishaun have?

a.16
b.15
c.20
d.28
e.17

Answers

Answer 1

f = t = n five ten and twenty

5n + 10n + 20n = 560

35n = 560

n = twenty dollar coins = 16

Related Questions

(Help me please) Read all of it pls?
John made 3 different stacks of wooden blocks. The first stack was 6 blocks high, the second stack was 7 block(s) higher than the first, and the final stack was 6 blocks higher than the second. how many blocks did John use for all 3 stacks?

Answers

the answer is going to be 44

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the answer is 38 blocks

second stack:- 6+7 = 13

third stack :- 13+6 = 19

and sum of all blocks is 38

Ben and Monica are building number patterns.

Ben’s pattern starts with 1 and follows the rule “multiply by 3, then subtract 1”
Monica’s pattern starts with 2 and follows the rule “multiply by 2, then subtract 1”
Select each ordered pair that represents Ben and Monica’s patterns using Ben’s terms as the x-coordinates and Monica’s corresponding terms as the y-coordinates.
(2, 1)
(3, 2)
(5,5)
(9, 14)
(14, 9)

Answers

I think it is 3,2. I maybe wrong.
the answer is 3,2 i had something similar to this

PLS HELP I NEED THIS DONE NOW AND PLS EXPLAIN

Answers

Answer:

The answer is 15.

Step-by-step explanation:

Don't forget about the A and H equaling 5. That is there to throw you off. A and B equals 8. Right? Well that's the length. The the A and E is 3. Right? Well that's the height. what you do is cut the triangular prism in half and you end up with a triangular prism with a height of 5. Then you multiply that with 1.5. You get 1.5 by dividing 3 by 2.  You then get 7.5. Now multiply that with 2. Your final answer is 14.

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Water flows back and forth between a small and large tank. When water is moving into a tank the flow rate is positive, and when water is moving from a tank the flow rate is negative. The large tank begins with 300 gallons of water, and the small tank begins with 200 gallons of water. After a period of 5 minutes, the large tank has the same amount of water as the small tank. Which statement describes the flow rate?

Answers

I really need points sorry but it’s a

A blade of a windmill completes 1 rotation every 4 seconds. The outer end of the blade travels 600 feet in 1 rotation. What is the speed of the outer end of the blade in feet per minute?

Answers

Answer:

900 feet per minute

Step-by-step explanation:

Answer:

[tex]9000[/tex] ft per minute

Step-by-step explanation:

There are 15 4's in a minute, which is 60.

600x15=9000.

the following graph shows the number of soccer games a team won in each of their three seasons. Explain how you could redraw the graph so the change in wins between the three seasons does not seem so great.

Answers

Answer:

you can instead draw a 4x3 graph, and just shrink the width to make it look like there was a bigger dip in between seasons. so season 1 would be under the first box, the second season under the second box, and the third season under the third box. this would then make the slope downward to therefore make the graph look like a bigger drop

what is the answer to this?

Answers

Bottom left is the correct answer

Answer:

(8+24)÷(12*4)

Step-by-step explanation:

(8+24)÷(12*4)

(32) ÷(48)

.6666 or 2/3

It the bottom right or the one boxed in

12x12?
hope you have a great day! dont let anyone ruin your it❤️

Answers

Answer:

12x12=48 have a great day to

Step-by-step explanation:

Find the 13th term of the following geometric sequence.
3,6,12,24, ...

Answers

Step-by-step explanation:

3

6

12

24

48

96

192

384

768

1536

3072

6144

12288

erghweradstrfhbsrdfthwrth

Answers

745 is the answer

basically,

775 - 15 l-2l   (absolute value = positive number)

so

775 - 15 (2)

MULTIPLY -15 X 2 -----> -30

775 - 30

= 745

can someone plsss help

Answers

the answers c!! :)))

Write your answer simplified, please.

Answers

Answer:

1.6

Step-by-step explanation:

1.6

1.6 is the correct answer

pls help me i need help ASAP

Answers

Answer:

B - 204

Step-by-step explanation:

Do 68 x 3 = 204

Answer: x=204

Step-by-step explanation:

HOPE THIS HELPS

An angle measures 48.4° less than the measure of its complementary angle. What is the measure of each angle?

Answers

Answer:

The angles are 69.2 degrees and 20.8 degrees

Step-by-step explanation:

Complementary angles, when added together, = 90°

We’ll call the first unknown angle a and the second angle b

b = a - 48.4

a + b = 90

So let’s substitute in for b in the second equation:

a + a - 48.4 = 90

2a - 48.4 = 90

2a = 138.4

a = 69.2

69.2 - 48.4 = 20.8 = b

Now, does a + b = 90?

69.2 + 20.8 = 90

Lmk if you have questions

the maximum load of elevator is 480 pounds. Assuming that the average mass of student is 45 pounds, and m represents the number of students in the elevator, how many students can take the elevator at the same time

Answers

we can use the equation 45m < 481

we can replace m to see where it caps.

and the cap is 10.

we can replace m to check our work

45(10) < 481

450 < 481

if you add another student, it would go over the limit.

hope this helps :D


about 10 students can get on a elevator at once

How many meters are equal to 4 kilometers? Use the pattern in the number of zeros of the product when multiplying by a power of 10 to help you.

Answers

Answer:

4000

Step-by-step explanation: hi! the formula is to multiply how many kilos by 1000! so 4 kilos equals 4000 meters

Answer:

4000

Step-by-step explanation:

Multiply the length value by 1000

4×1000=4000

There are 1000 meters in one kilometer

Help, the pic is below thanks.

Answers

I was gonna answer it but I really don’t understand it so sorry

Can someone help me with this

Answers

Answer:

He has 4 different lines he can organize his books

Step-by-step explanation:

Help fast 6th grade math

Answers

Answer:

2.6

Step-by-step explanation:

2.6. Have a good day

HELP
The perimeter of a hexagon is 30x and the perimeter of a triangle is 10x + 40. If the two figures have the same perimeter, what is the value of x?

Answers

the answer:
x=2
explanation:
30x=10x+40
-10x -10x
----------------
20x=40
---- -----
20 20

x=2

PLZ SEND AT LEAST A SCREENSHOT I NEED HELPPPP

Answers

Answer:

When was

Step-by-step explanation:

Which types of graphs are best used when representing individual data points rather than categories?

line graph
bar graph
line plot
stem-and-leaf plot

Answers

I’m not sure but this is what i would use,
answer:stem-and-leaf plot!

Charity sold 110 cookies for $0.75 each. Her cost to make each cookie was $0.20 plus $20 for boxes. How much profit will charity make on this sale?
A $64.50
B $62.50
C$60.50
D$40.50

Answers

$40.50 is how much she would make

i cant get it i ran out of time sorry

Select the statement that describes the relationship between the amount of money the student makes and time in days?

Answers

Answer:

the student charges 20 dollars plus an additional 10 dollars per day

Step-by-step explanation:

it starts of at 20, and increases by 10 each day

Kelly's Cafe offers two kinds of espresso: single-shot and double-shot. Yesterday afternoon, the cafe sold 4 single-shot espressos and 6 double-shot espressos. What percentage of the espressos sold were single-shot?

Answers

Answer:

40% of espresso was single-shot.

Step-by-step explanation:

To make a percentage, you need to think of a fraction first. The denominator is always 100 in a percent. If my answer is 40%, the fraction would be 40/100. If there was 6 double shots and 4 single shots, those two together would make 10. 10 x 10 is 100. So really, you just have to multiply 4 by 10 to get the percentage.

Hope this helped, if your confused, just ask me :]

-Nific 0.9

On Tuesday, Chris swam 6 laps in 5 1\10 minutes. On Wednesday, he swam the same distance in 4 7\10 minutes. How much faster did he swim on Wednesday?

and please show the answer. 10 extra points for work showed :)

Answers

Answer:

1  6/10 minute

Step-by-step explanation:

Simple subtraction, 5-4=1, 7-1=6, so therefore, Chris swam faster by 1 6/10 minutes.

Answer:

1  6/10 minute

Step-by-step explanation:

i dunno lol

please help 16 MATH PROBLEM

Answers

Answer:

12

Step-by-step explanation:

Answer:

Her dog is 6 years old

Step-by-step explanation:

x+25+x=37

(x+x)+25=37

2x+25=37

2x+25-25=37-25

2x=12

[tex]\frac{2x}{2}[/tex]=[tex]\frac{12}{2}[/tex]

x=6

Her dog is six years old. Hope this helps!

Choose the type of geometric transformation and whether the transformation preserves congruency (Yes or No).

-reflection
-No
-rotation
-dilation
-translation
-Yes

Answers

rotation- yes
dilation- yes

Mr. Diego deposits $2000 into an account with 4 1/2% interest compounded twice per year. How much money will be in the account in two years?

Answers

2184.05 after 2 years just add 4.5% twice
90% of people marry there 7th grade love. since u have read this, u will be told good news tonight. if u don't pass this on nine comments your worst week starts now this isn't fake. apparently if u copy and paste this on ten comments in the next ten minutes you will have the best day of your life tomorrow. you will either get kissed or asked out in the next 53 minutes someone will say i love you

NEED HELP ASAP! NO LINKS OR U WILL BE REPORTED!!! WILL GIVE BRAINIEST!!

Answers

1. 8 down or x ,5 to the right
2. 9 up or x , 2 to the left
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