What is the perimeter of triangle ABC with coordinates of A(3,4), B(3,11), C(27,4)
1 answer:
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<h2>Answer with explanation:</h2>
1. Let x = Number of nickels
y= Number of quarters
Equation: (i)
Equation: (ii) [∵ 1 nickel = $0.05 , 1 quarter = $0.25]
Multiply equation (ii) by 20, we get
(iii)
Eliminate (i) from (iii), we get
put y= 10 in (i) ,
Sentence = " Jane has 10 nickels and 10 quarters".
2. Let x = Number of dimes
y= Number of nickels
Equation: (i)
Equation: (ii) [∵ 1 nickel = 5 cents, 1 quarter = 25 cents]
Multiply equation (i) by 5, we get
(iii)
Eliminate (iii) from (ii), we get
put x=3 in (i) ,
Sentence = " Joey has 3 dimes and 9 nickels".