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inna [77]
2 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]2 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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Answer:

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Step-by-step explanation:

Given that:

Animal ____ altitude

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Arranging in decreasing order of elevation :

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3 years ago
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What is e-1/2f when e=15 and f=2
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Step-by-step explanation:

Replace with the values

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Azul spun a tri-color spinner twice. What is the probability that the spinner landed on the colors blue and green in any order?
guapka [62]

Answer:

The Probability that the spinner landed on the colors blue and green in any order = 2/9

Step-by-step explanation:

Given - Azul spun a tri-color spinner twice.

To find - What is the probability that the spinner landed on the colors blue and green in any order?

Solution -

Given that,

A tri-color spinner spun twice

So,

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So,

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∴ we get

The Probability that the spinner landed on the colors blue and green in any order = 2/9

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Answer:

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Answer:

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Step-by-step explanation:

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