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kotykmax [81]
3 years ago
7

Calvin wants to buy a car alarm that has a full price of $325, plus a 12% sales tax. Which is the better offer, a 35%-off sale o

r a $100 coupon?
A. The 35%-off sale is better, because Calvin will pay a total of $236.60.
B. The $100 coupon is better, because Calvin will pay a total of $264.
C. The $100 coupon is better, because Calvin will pay a total of $225.
D. The 35%-off sale is better, because Calvin will pay a total of $211.25.
Mathematics
1 answer:
tester [92]3 years ago
4 0
First calculate the total price of the car alarm
P = 325 + 0.12(325)
P = $ 364 is the total prize of the car alarm

then calculate the discounted price
35%-off sale
P = 364( 1 - 0.35)
P = 364(0.65)
P = $ 236.6

$ 100 coupon
P = 364 - 100
P = $ 264
so it is better to have the 35%-off sale
so the answer is A
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Read 2 more answers
Hey can someone help me and check my answers? thanks <3
Tasya [4]
Remember
x^-m=1/(x^m)
u^-3=1/(u^3)
1/(u^3)=1/125
therefor
u^3=125
u=5




x=-3
easy
y=-3-13
y=-16
correct



normally, y is output
(x,y)
chose al second numbers
0,3 are all acceptable
B and D




y=mx+b
m=-3
y=-3x+b
sub point
(x,y)
(1,-2)
-2=-3(1)+b
-2=-3+b
1=b
y=-3x+1

remember (x,y) you keep swtiching those

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