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podryga [215]
3 years ago
12

a train traveled 1/5 of the distance between two cities in 3/4 of an hour ,at this rate what fraction of the distance between tw

o cities can the train travel in one hour
Mathematics
2 answers:
Neporo4naja [7]3 years ago
6 0

sorry, put the wrong answer and cant delete

postnew [5]3 years ago
6 0

Answer:

4/15 distance

Step-by-step explanation:

We can use ratio's to solve this, putting distance over time

1/5 distance          x distance

----------------   = ----------------------

3/4 hour                 1 hour

Using cross products

1/5 * 1 = 3/4 x

1/5 = 3/4 x

Multiply by 4/3 to isolate x

1/5 * 4/3 = 4/3 * 3/4x

4/15 = x

The train can travel 4/15 of the distance in 1 hour

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Answer:idk I’m just a little kid

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3 years ago
ALGEBRA 1 HELP!!!!<br> •GIVING BRAINLIEST
pickupchik [31]
Amount= Deposit or initial amount ( 1+ percent increase) ^period of time
So Amount= 50(1+0.1)^3
= 50(1.1)^3
= 50(1.331)
=66.55
So she will have $66.55 in 3 years.
4 0
3 years ago
Plz help me I had to put it was math Bc there is no science option plz help me thank you.
SVEN [57.7K]

Answer:

  see the attached

Step-by-step explanation:

To fill in the data table, you need information about the layers of the Earth. That information is provided in the second attachment.

Among other things, it shows the density of the rock layers varies over a range of almost 6 to 1 from the top layer to the inner core. Your representative liquids vary in density over a range of about 1.8 to 1, so clearly cannot match the relative densities.

In the attached spreadsheet, we have used the average of the top and bottom density values for each layer to represent the density of the layer. Then we did a <em>linear</em> mapping so that the minimum density maps to lamp oil, and the maximum density maps to honey. (You get slightly different results if you use a different mapping strategy.)

For your convenience in stacking your "density cylinder", we have shown the relative thickness of each of the layers as a percentage of the overall radius of the Earth. That is, if your cylinder is 100 mL deep, for example, then the top layer will be 0.5 mL deep, the next layer 11.3 mL deep, and so on.

__

We have elected not to use alcohol for the top layer, because it is miscible with all of the liquids immediately below that in the table. That is, you could not maintain alcohol as a separate layer in your cylinder because it would dissolve into the layer below. It might take a little effort (or care) to keep the lamp oil separated from the vegetable oil, as we expect those might try to mix, as well.

If you compare the scaled density values with the values for the "representative" liquids we have chosen, you will see that some are closer than others. The idea is to try to get the best match, while also choosing liquids that don't mix well.

7 0
3 years ago
Find the height of a clock tower if the angle of elevation from a horizontal point 430 m from its base is 40°.
zaharov [31]

\\ \sf\longmapsto tan40=\dfrac{P}{430}

\\ \sf\longmapsto 0.83=\dfrac{P}{430}

\\ \sf\longmapsto P=430(0.83)

\\ \sf\longmapsto P\approx361m

  • P=Height of tower

5 0
2 years ago
Read 2 more answers
You wish to buy a house for ​$295987. The bank offers you a mortgage loan of 3.7​% for 25 years. How much will your monthly paym
Allisa [31]

Answer:

Monthly payments: $2446.92

Total expenditure: $734,076.88

Step-by-step explanation:

As the compounding frequency is not stated, it is supposed to be annualy.

<em>The total accumulated value T, including the loan L and the interest is given by the formula </em>

T=L(1+\frac{r}{n})^{nt}

where

L = Amount of the loan

r = nominal interest per year. In this case, 0.037

n = compounding frequency, in this case 1 year

t = the length of time the interest is applied. In this case, 25                      years.

The total amount after 25 years will be

T=295987(1+0.037)^{25}=295987(1.037)^{25}=734076.88

There are 25 times 12 = 300 months in 25 years, so the monthly payments would be

\frac{734076.88}{300}=\$2446.92

After the life of the loan, if there are no additional commissions  or expenditures, you would have spent the amount of the loan plus interest, that is to say, the amount T previously computed  

$734076.88

8 0
3 years ago
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