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MissTica
3 years ago
6

pedro open his account with $710 and withdraw $35 per week. maria opened her account with $570 and withdrew $25 weekly .In how m

any weeks will their accounts be equal
Mathematics
1 answer:
user100 [1]3 years ago
6 0
In 14 weeks, if you turn both of those into equations you'll get

y =  - 35x + 710
and
y =  - 25x + 570

You should be then able to graph this and see that intersects at 14 weeks at 220 dollars
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[Question 1]
let d = number of dramas Gina rented, c = # of comedies, and t = # of documentaries:

[equation a] d + c + t = 11
[equation b] 2d + 3c + 2t = 27
[equation c] d + 2c + 2t = 19

if we subtract [a] from [c] we get:
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if we subtract [c]*2 from [b] we get:
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Now we can subtract [e] from [d] to solve for t:
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Now put in 3 for t in [d] or [e] to solve for c:
c + 2(3) = 11
c + 6 = 11
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So she rented 5 comedies and 3 documentaries which leaves 3 dramas (which is answer A)
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