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KonstantinChe [14]
3 years ago
13

Sang-Jin has only quarters and nickels in her piggy bank. She has 66 coins in the bank with a value of $11.50.

Mathematics
1 answer:
asambeis [7]3 years ago
5 0
Let x be quarters, and y be nickels.
0.25x + 0.05y = 11.50

x + y = 66

x= 66 - y

0.25(66-y)+0.05y=11.50
16.5 -0.25y+0.05y = 11.50
16.5-0.2y=11.50
-0.2y=11.50-16.5
-0.2y=-5
-0.2y/-0.22=-5/-0.2
y=25

x+y=66
x+(25)=66
x=66-25
x=41

So there are 41 quarters, and 25 nickels.
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The perimeter of a triangle is 199 inches. If one side of the triangle is six more than the shorter side, and the longer side is
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Shortest side (a) = 58
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then substitute 58 into your b & c formulas to figure out the rest
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Answer:

See below

Step-by-step explanation:

From the table we see there is a relation between x and y values

Every step change of x = 0.5, every step change of y = 2

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<u>Using to pairs of points to get the slope and y-intercept</u>

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<h3>Part A</h3>
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