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Sidana [21]
3 years ago
13

Which equations represent exponential growth?

Mathematics
1 answer:
Tems11 [23]3 years ago
8 0

Answer:

Growth;

A = 20,000(1.08)^t

A = 40(3)^t

P = 1700(1.07)^t

Decay;

A = 80(1/2)^t

A = 1600(0.8)^t

P = 1700(0.93)^t

Step-by-step explanation:

The key to differentiate between decay and growth is the term inside the bracket

For growth, the term inside the bracket is greater than 1, while for decay, the term inside the bracket is less than 1

Looking at the given equations, we have;

Growth;

A = 20,000(1.08)^t

A = 40(3)^t

P = 1700(1.07)^t

Decay;

A = 80(1/2)^t

A = 1600(0.8)^t

P = 1700(0.93)^t

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VladimirAG [237]

Answer:

28 hours

Step-by-step explanation:

21/3 = 7

7x4=28

6 0
3 years ago
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Brine is a solution of salt and water. If a tub contains 50 gallons of a 5% solution of brine, how much water must evaporate to
vova2212 [387]
<span>Let x = amt of water evaporated :.05(50) = .08(50-x) 2.5 = 4 - .08x .08x = 4 - 2.5 .08x = 1.5 x = 18.75 lb of water evaporated : ; Check; amt of salt remains the same, only the percentage is different, right? .05(50) = .08(50-18.75) .05(50) = .08(31.25) 2.5 = 2.5</span>
7 0
3 years ago
kylie drank 35% of 400-mL container of water.Eugenia drank 45% of a 350-mL.Who drank more water?How do you know? I will have mor
GREYUIT [131]
In the question, there are two people with different percentage of drinking water from different quantities.
Taking the first case of Kylie we get that he drank 35% water of 400ml
Then
35% of 400 ml = (35/100) * 400 ml
                         = (35 * 4) ml
                         = 140 ml
So Kylie drank a total of 140 ml water.
Now taking the case of Eugenia we get that he drank 45% of 350 ml water.
Then
45% of 350 ml = (45/100) * 350
                         = 1575/10 ml
                         = 157.5 ml
So Eugenia drank 157.5 ml of water. Then we can conclude that Eugenia drank more water than Kylie.

5 0
3 years ago
Which of the following expressions are equivalent? Justify your reasoning.
Fynjy0 [20]
A. 4\sqrt{x^{3}
    4\sqrt{x^{2} * x}
    4\sqrt{x^{2}}\sqrt{x}
    4x\sqrt{x}

b. \frac{1}{x^{-1}} =x

c. 10\sqrt{x^{5} * x^{4} * x^{2}}
    10\sqrt{x^{11}
    10\sqrt{x^{10}* x}
    10\sqrt{x^{10}}\sqrt{x}
    10x^{5}\sqrt{x}

d. x^{\frac{1}{3}} * x^{\frac{1}{3}} * x^{\frac{1}{3}}
    x

The expressions that are equivalent are B and D.
3 0
3 years ago
What is the value of n?
makvit [3.9K]

Answer:

Step-by-step explanation:

5+n+4+7+n+8=360

24+2n=360

2n=360-24

2n=336

n=168

8 0
3 years ago
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