jayy2x41

25.07.2019 • 

Mathematics

5apples and 3 oranges cost $3.50 and 4 apples and 5 oranges cost $4.10. how much does one apple and one orange cost. let x = the cost of one apple. let y = the cost of one orange. a. write an equation for the cost of 5 apples plus 3 oranges. b. write an equation for the cost of 4 apples plus 5 oranges. c. solve the above system of equations using multiplication. d. what is the cost of one apple? what is the cost of one orange?

Ответ:

dondre54

30.05.2020

Mathematics

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x= cost of apple and y= cost of orange:

5x+3y=3.50, 4x+5y=4.10.

So 20x+12y=14, so 20x=14-12y; 20x+25y=20.50.

Substitute for 20x in the second equation: 14-12y+25y=20.50

13y=6.50, y=0.50. But 5x=3.50-3y, so 5x=3.50-1.50=2.00 and x=0.40.

so the cost of one apple is 40 cents and one orange is frickiin 50

Step-by-step explanation:

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Ответ:

jazzzzhands21

30.05.2020

Mathematics

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Let x= cost of apple and y= cost of orange:
5x+3y=3.50, 4x+5y=4.10.
So 20x+12y=14, so 20x=14-12y; 20x+25y=20.50.
Substitute for 20x in the second equation: 14-12y+25y=20.50
13y=6.50, y=0.50. But 5x=3.50-3y, so 5x=3.50-1.50=2.00 and x=0.40.
Therefore the cost of one apple is 40 cents and one orange is 50 cents.

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Ответ:

jasminbeganovic141

21.10.2022

Mathematics

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a, c

Step-by-step explanation:

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