2 years ago

5-(-3) PLEASE SHOW WORK AND HURRY

Mathematics

1 answer:

gavmur [86]2 years ago

4 0

Eight eight eight eight eight eight 8 8 8 8

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shutvik [7]

The correct answer is (A)!

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3 years ago

If the cost of 15 bananas is rs 84 how many bananas can be bought for rs 140?

Troyanec [42]

Answer:

25 bananas.

Step-by-step explanation:

The cost of one banana = 84/15 = rs 28/5 = rs 5.60.

So the number of bananas costing rs 140

= 140 / 5.60

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3 years ago

The price of a computer component is decreasing at a rate of 15% per year. State whether this decrease is linear or exponential

Margaret [11]

Answer:

Since the price is given by an exponential function, the decline in price is exponential.

The component will cost $36.8475 in three years.

Step-by-step explanation:

The equation for the price of a component has the following format:

$P(t) = P(0)(1-r)^{t}$

In which P(t) is the price after t years, P(0) is the initial price, and r is the rate that the price decreases.

Since the price is given by an exponential function, the decline in price is exponential.

The price of a computer component is decreasing at a rate of 15% per year.

This means that $r = 0.15$

Component costs $60 today

So P(0) = 60. Then

$P(t) = P(0)(1-r)^{t}$

$P(t) = 60(1-0.15)^{t}$

$P(t) = 60(0.85)^{t}$

What will it cost in three years?

This is P(3).

$P(t) = 60(0.85)^{t}$

$P(3) = 60(0.85)^{3} = 36.8475$

The component will cost $36.8475 in three years.

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3 years ago

Mary invests £12000 in a saving account.

ladessa [460]

A=Value of investment.
A=12000(1+0.015)^2
A= <span>£12362.70</span>

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andrezito [222]

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Step-by-step explanation:

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