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labwork [276]
3 years ago
5

The price of the box of 10 markers is $7. The price of the box of 24 markers is $14. All prices without tax, and the price of th

e boxes is the same. WILL MARK BARINLEIST OR WHATEVER YOU CALL IT I WILL
a) Write an equation which tell the price Y for the number of markers X
Mathematics
1 answer:
stepladder [879]3 years ago
6 0

Answer:

see below

Step-by-step explanation:

10 markers  =7 dollars

Divide each side by 10

10/10 = 7 /10

1 marker = 7/10

y =7/10 x  where y is the cost and x is the number of markers

24 markers  =14 dollars

Divide each side by 24

24/24 = 14 /24

1 marker = 7/12

y = 7/12 x  where y is the cost and x is the number of markers

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The sum of two numbers is 3.1. Twice the large number is 7 more than 3 times the smaller number. What are the numbers?
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Let the two numbers be x and y where x is greater than y.

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This forms a set of simultaneous equations (i) and (ii)

Solving the simultaneous equations by elimination;

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