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Zanzabum
3 years ago
12

A dog collar was originally priced at $5 but went on sale for 20% off. If Vince bought the dog collar and paid 9% sales tax, how

much did he pay in total?
Mathematics
1 answer:
Vlada [557]3 years ago
3 0

Answer:$4.36

Step-by-step explanation:

5(0.8)= 4

4(1.09) = $4.36

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10.6

Step-by-step explanation:

  4 + 6(1.3) - 2.4 * 0.5

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= 4 + 7.8 - 1.2

= 10.6

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The movement of the progress bar may be uneven because questions can be worth more or less (including zera
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600

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3 years ago
QUESTION 3 What is the area of the parallelogram?
lara31 [8.8K]

Answer:

C. 275.88‬ m squared

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6 0
3 years ago
2.
iren [92.7K]

Answer:

  • Part A: The price of fuel A is decreasing by 12% per month.

  • Part B: Fuel A recorded a greater percentage change in price over the previous month.

Explanation:

<u>Part A:</u>

The function     f(x)=2.27(0.88)^x     calculates the price of fuel A each month by multiplying the price of the month before by 0.88.

Month       price, f(x)

1                 2.27 (0.88) = 1.9976 ≈ 2.00

2                2.27(0.88)² = 1.59808 ≈ 1.60

3                2.27(0.88)³ = 1.46063 ≈ 1.46

Then, the price of fuel A is decreasing.

The percentage per month is (1 - 0.88) × 100 = 12%, i.e. the price decreasing by 12% per month.

<u>Part B.</u>

<u>Table:</u>

m       price, g(m)

1          3.44

2         3.30

3          3.17

4         3.04

To find if the function decreases with a constant ration divide each pair con consecutive prices:

  • ratio = 3.30 / 3. 44 = 0.959 ≈ 0.96
  • ratio = 3.17 / 3.30 = 0.960 ≈ 0.96
  • ratio = 3.04 / 3.17 = 0.959 ≈ 0.96

Thus, the price of fuel B is decreasing by (1 - 0.96) × 100 =4%.

Hence, the fuel A recorded a greater percentage change in price over the previous month.

5 0
3 years ago
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