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Juliette [100K]
2 years ago
10

A train traveled 720km in 9h. How far would it travel in 11 hr? How long would it take to go 1120km?

Mathematics
2 answers:
kompoz [17]2 years ago
6 0
It would go 880 km in 11 hours, and it would take 14 hours to go 1120 km
Ahat [919]2 years ago
3 0
How far would it travel in 11 hours?
First, we have to find how much the train travels in 1 hour. We are finding the unit rate. So, divide 720 by 9 and we get 80. The train travels 80 km in one hour. We have to find how much it travels in 11 hours. We multiply 80 by 11 and we get 880.
<u>The train would travel 880 km in 11 hours.</u>

How long would it take the train to travel 1,120 km?
Since we know that the train can travel 80 km per hour , we can divide 1,120 by 80. When we divide we get 14.
<u>The train would travel 1,120 km in 14 hours.</u>

-Hope this helped! :)
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Compound interest <br> Plz help!!!
liraira [26]

Answer:

a) A(t) = 17500(1.0053)^{12t}

b) The balance after 8 years will be of $29,069.

Step-by-step explanation:

Compound interest:

The compound interest formula is given by:

A(t) = P(1 + \frac{r}{n})^{nt}

Where A(t) is the amount of money after t years, P is the principal(the initial sum of money), r is the interest rate(as a decimal value), n is the number of times that interest is compounded per year and t is the time in years for which the money is invested or borrowed.

a)

Loan of $17,500 means that P = 17500

6.4% interest rate means that r = 0.064

Compounded monthly means that n = 12. So

A(t) = P(1 + \frac{r}{n})^{nt}

A(t) = 17500(1 + \frac{0.064}{12})^{12t}

A(t) = 17500(1.0053)^{12t}

b)

This is A(8). Then

A(8) = 17500(1.0053)^{12*8} = 29069

The balance after 8 years will be of $29,069.

8 0
2 years ago
For every car you sell, you get a 6% commission. IF your total sales for the month is $125,650, what is your commission?
Lera25 [3.4K]
Let
x= total cost of cars
y= total commission paid out for all cars sold

6%= 6/100 = .06

Set up an equation:
y= .06(x)

Given: x= $125,650

substitute into the y= .06(x)

multiply $125,650 by .06.

The answers would be: 7539


hope this helped :)
3 0
2 years ago
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If a lawn measures 40 and 4/5 ft by 50 and 7/8ft how many square feet of seed will he need?
pychu [463]
So convert to improper fracitons (improper=x/y where x>y and the current one is mixed where it is in t s/f form) so

40 and 4/5=(40 times 5)/5 and 4/5=200/5 and 4/5=204/5

50 and 7/8=(50 times 8)/8 and 7/8=400/8 and 7/8=407/8

area=legnth times width
legnth =407/8
width=204/5
multiply 407/8 and 204/5

407/8 times 204/5=(407 times 204)/(8 times 5)=83028/40=2075.7 square feet

the answer is 2075.7 ft^2 of seed
6 0
3 years ago
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Lelechka [254]

Answer:

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Step-by-step explanation:

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Where are the proteins for a cell made?<br> mitochondria<br> cytoplasm<br> nucleus<br> ribosomes
goblinko [34]

Answer:

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Step-by-step explanation:

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