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inna [77]
3 years ago
12

Marcos buys 20 folders and 10 binders for a total of $100. Alicia buys 10 folders and 20 binders for $110. What is the price of

each folder and each binder?​
Mathematics
1 answer:
tresset_1 [31]3 years ago
4 0

Answer:

folder is $3 binder is $4

Step-by-step explanation:

Let folder be x and binders be y

Marcos

20x+10y= 100----------1

Alicia

10x+20y= 110-------------2

solve 1 and 2

20x+10y= 100 X 1

10x+20y= 110 X 2

20x+10y= 100

-20x+40y= 220

        -30y= -120

y= 120/30

y= 4

put y= 4 in 1

20x+10y= 100

20x+10(4)= 100

20x+40=100

20x=100-40

20x=60

x= 60/20

x=3

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Bill bought a new cellular phone. His monthly bill will be $32.99 each month which includes 100 minutes of use. Additional minut
Sunny_sXe [5.5K]

Answer: option D is the correct answer.

Step-by-step explanation:

Let m represent the total number of minutes that the phone is used in a month.

Let C represent the amount of the bill for using m minutes.

His monthly bill will be $32.99 each month which includes 100 minutes of use. Additional minutes will cost $0.19 per minute. It means that the cost of additional minutes is

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7 0
3 years ago
Read 2 more answers
18m² - 18m³ - 6m <br><br> Factor the common factor
tangare [24]

Answer:

-6m(3m²-3m+6)

or

6m(-3m²+3m-6)

Greatest common factor is 6m or -6m, anyone works.

Step-by-step explanation:

18m² - 18m³ - 6m

The common factor is 6m or -6m, anyone works.

18m² - 18m³ - 6m

-6m(3m²-3m+6)

Hope this helps!

Please mark as brianliest if correct!

7 0
2 years ago
PLEASE HELP!!
AlladinOne [14]
X = (44-12)/5 i think??
6 0
2 years ago
Find m angle ABC<br> Please help
Marina CMI [18]

Answer:

ABC = 35

Step-by-step explanation:

x and 3x-70 are corresponding angle and corresponding angle are equal when the lines  are parallel

x = 3x-70

Subtract 3x from each side

x-3x = 3x-70-3x

-2x= -70

Divide by -2

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x = 35

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8 0
3 years ago
The length of a rectangle is five times its width.
kykrilka [37]

Answer:

w=10

L=50

Step-by-step explanation:

<h2><em>Length=5w</em></h2><h2><em>Width=W</em></h2>

6w=60

----   ----

6       6

w=10

5(10)=50

L=50

Also can you make me the top answer?

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3 years ago
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