Katie and Pamela put some money into their money boxes every week. The amounts of money (y), in dollars, in their money boxes af
ter certain amounts of time (x), in weeks, are shown by the equations below:
Katie y = 30x + 20
Pamela y = 20x + 90
After how many weeks will Katie and Pamela have the same amount of money in their money boxes, and what will that amount be?
6 weeks, $150
6 weeks, $230
7 weeks, $150
7 weeks, $230
2 answers:
They should both meet at 230 in 7 weeks.
Answer:
D" 7 weeks, $230
Step-by-step explanation:
I JUST TOOK THE TEST :) ;)
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16 x 3/2 = 24
24 x 3/2 = 36
36 x 3/2 = 54
The line segments between (4,-6) and (-6,-16) is 1.
slope = y2 -y1 /x2-x1 = -16+6/-6-4=-10/-10=1
Write a system of equations and solve.
x + y = 10
5x + 10y = 90
Multiply and combine equations
-5x - 5y = -50
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5y = 40
y = 8
x = 2
There are 2 nickels and 8 dimes in the jar. Hope this helps! :)