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Flura [38]
2 years ago
13

A chair’s regular price is $349. It is on clearance for 30% off, and a customer uses a

Mathematics
2 answers:
Hunter-Best [27]2 years ago
7 0

Answer:

$207.66

Step-by-step explanation:

349x.7=244.3

244.3x.85=207.665

Rounded to the nearest 100th

207.66

IRISSAK [1]2 years ago
4 0

Answer:

$207.655

Step-by-step explanation:

30% off means 70% paid

70% = 0.7

15% off means 85% paid

85% = 0.85

0.85(0.7(349)) = 207.655

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A donut shop requires customers to spend at least $4 in order to use their debit card to pay for a purchase. Maya wants to buy a
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Kristen has 64 coins in her bank. She has $9.25 in dimes and quarters. How many dimes and quarters does she have?
Stella [2.4K]
D= # of dimes
q= # of quarters

QUANTITY EQUATION:
d + q= 64

COST EQUATION:
0.10d + 0.25q= $9.25


STEP 1:
multiply quantity equation by -0.10 to be able to eliminate the d term in step 2

(-0.10)(d + q)= (-0.10)(64)
-0.10d - 0.10q= -6.40


STEP 2:
add equation from step 1 to cost equation to eliminate the d term and solve for q

Add
0.10d + 0.25q= $9.25
-0.10d - 0.10q= -6.40

0.15q= 2.85
divide both sides by 0.15

q= 19 quarters


STEP 3:
substitute q value in step 2 into either original equation to find d value

d + q= 64

d + 19= 64
subtract 19 from both sides

d= 45 dimes


CHECK:
0.10d + 0.25q= $9.25
0.10(45) + 0.25(19)= 9.25
4.50 + 4.75= 9.25
9.25= 9.25


ANSWER: There are 45 dimes and 19 quarters.

Hope this helps! :)
7 0
3 years ago
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