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velikii [3]
3 years ago
7

Jordan has 5/6 dvds as bob, so if jordan has 55 dvds how much does bob have?

Mathematics
1 answer:
Luba_88 [7]3 years ago
3 0

Answer:

Bob has 66 dvds

Step-by-step explanation:

Let's assume

Bob has 'x' number of dvds

we are given

Jordan has 5/6 dvds as bob

so, Jordon will have

=\frac{5}{6}x

now, we are given jordan has 55 dvds

so, we can set it to 55

and then we can solve for x

\frac{5}{6}x=55

Multiply both sides by 6

6\times \frac{5}{6}x=6\times 55

5x=6\times 55

divide both sides by 5

\frac{5x}{5} =\frac{6\times 55}{5}

x=66

So,

Bob has 66 dvds

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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.

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strojnjashka [21]
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Answer:

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Step-by-step explanation:

- 1/4= -0.25.

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Step-by-step explanation:

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Let A be the area of the sector of circle.

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