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cestrela7 [59]
4 years ago
6

How Long will it take an automobile being driven at a speed of 60 miles per hour to travel 13,200 feet ? An object moving at a r

ate of 60 miles per hour travels 88 feet in one second.​
Mathematics
1 answer:
nata0808 [166]4 years ago
4 0

Answer:

150 seconds 13200 divided by 88 equals 150

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Sally invests £8000 in a savings account. The account pays 2.8% compound interest per year work out the value of her investment
Alborosie

Answer: the value of her investment after 4 years is £8934.3

Step-by-step explanation:

The formula for determining compound interest is expressed as

A = P(1+r/n)^nt

Where

A = total amount in the account at the end of t years

r represents the interest rate.

n represents the periodic interval at which it was compounded.

P represents the principal or initial amount invested.

t represents the duration of the investment in years.

From the information given,

P = 8000

r = 2.8% = 2.8/100 = 0.028

n = 1 because it was compounded once in a year.

t = 4 years

Therefore,

A = 8000(1+0.028/1)^1 × 4

A = 8000(1+0.028)^4

A = 8000(1.028)^4

A = £8934.3 to the the nearest penny

6 0
4 years ago
How do I find the constant of proportionality from a equation
Scrat [10]

Answer:The constant of proportionality k is given by k=y/x where y and x are two quantities that are directly proportional to each other. Once you know the constant of proportionality you can find an equation representing the directly proportional relationship between x and y, namely y=kx, with your specific k.

Step-by-step explanation:I didn’t know the answer sorry if it’s wrong

7 0
3 years ago
Brainliest and 50 points! Data picture is added below
Semmy [17]

Answer/Step-by-step explanation:

A. The cluster is where the 100 is to the 235. The outlier is 1,110 cause it is way out in the open alone almost 300 numbers away from its nearest number

B. For the correlation if you notice how it goes from 200... > 400...> 600...>800...it kinda like a pattern of  adding 200

C. The independent variable  is temperature and the dependent is sales. since the amount of money made depends on the temperature.

Download docx
8 0
3 years ago
Evaluate if m= -6 and n= -2<br> (2m divided by n) <br> please help!!11!!
NISA [10]

\frac{2m}{n}
you put in -6 for m and -2 for n
\frac{2( - 6)}{ - 2}
the 2/2 =1 but one is negative so it's -1
- 1( - 6)
negative times a negative is a positive
6
5 0
4 years ago
An artist can sell 20 copies of a painting at $100 each, but for each additional copy he makes, the value of each painting will
dimulka [17.4K]

Answer:

40 more paintings in order to maximize sales making a total of 60 paintings

Step-by-step explanation:

Let x= no.of copies above 20

Total Sales(x) = (number of copies)(price per copy)

Sales (x)= (20 +x)(100 –x)

Open bracket

=1200-20x+100x-x^2

=1200+80x-x^2

Derivative of the sales

80-2x=0

80=2x

Divide both sides by 2

40=x

Because Sales(x)= –2, this is maximal by the second derivative test

The artist should make 40 more paintings in order to maximize sales making a total of 60 paintings.

4 0
4 years ago
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