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2 years ago

8

Holly had $5,000 in her bank account. She withdrew $800 to buy a new bike. What is the percent decrease in the balance of her ac

count?
The percent decrease is 1.6%.
The percent decrease is 16%.
The percent decrease is 84%.
The percent decrease is 120%.

2 answers:

sineoko [7]2 years ago

8 0

The percent decrease is 16%

musickatia [10]2 years ago

6 0

Answer:

The percent decrease is 16%

Step-by-step explanation:

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1. A group of workers is harvesting berries at a constant rate. An equation that represents the number of baskets of berries the

lbvjy [14]

Answer: (a) The slope of the line is 5 and the y-intercept is (0,10). (b) The rate of change is 5 and the initial amount is 10.

Explanation:

The given equation is,

$y=5x+10$ .... (1)

(a)

The slope intercept form of the a line is,

$y=mx+b$ .... (2)

Where, m is slope and (0,b) is y-intercept.

On comparing (1) and (2) we get,

$m=5, b=10$

Therefore, the slope is 5 and the y-intercept is (0,10).

(b)

The rate of change is also known as slope therefore the rate of change is 5.

To find the initial amount put x=0 in the given equation.

$y=5(0)+10=10$

Therefore, the initial value is 10.

The rate of change represents the number of baskets of berries the workers picked increased by 5 units per unit of time.

The initial amount shows the number of baskets of berries the workers picked before the workers starts harvesting.

(c)The graph is shown below.

Since x represents the time in hours, therefore x is always greater that or equal to 0.

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2 years ago

Read 2 more answers

webassign If a snowball melts so that its surface area decreases at a rate of 6 cm2/min, find the rate at which the diameter dec

drek231 [11]

Answer:

The answer is $\frac{3}{10\pi } cm/min$

Step-by-step explanation:

Assuming the snowball is a perfect sphere, then if A denotes the surface area and D the diameter then:

$A=4\pi r^{2} = 4\pi (\frac{D}{2} )^{2} =\pi D^{2}$

Differentiating wrt r we have:

$\frac{dA}{dD} =2\pi D$

We are told that $\frac{dA}{dt}= -6$ and we want to find $\frac{dD}{dt}$

By the chain rule we have:

$\frac{dA}{dD}=\frac{dA}{dt}.\frac{dt}{dD}=\frac{\frac{dA}{dt} }{\frac{dD}{dt} }$

∴ $2\pi D=-\frac{6}{\frac{dD}{dt} }$

∴ $\frac{dD}{dt}=-\frac{6}{2\pi D}$

When D=10 then

$\frac{dD}{dt} =-\frac{6}{10*2\pi } =-\frac{3}{10\pi }$

The sign (-) shows that the D is decreasing.

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3 years ago

Write your answer without using negative exponents

Reil [10]

Answer:

$\frac{1}{ {u}^{42} }$

Step-by-step explanation:

From law of indices

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2 years ago

The price of grapes at a farm is $1.85 per pound. Which equation can be used to determine c, the total price of n pounds of grap

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1.85n = c. I hope this helps!

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3 years ago

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cruising works three and a half hours every day and earns $12 per hour she works 5 days a week how much does Kevin earn in 4 wee

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Kevin makes $840 in 4 weeks.

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3 years ago