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3 years ago

Why is 210 divided by 30 the same as 21 tens divided by 3 tens

Mathematics

1 answer:

sveta [45]3 years ago

6 0

Answer:

It is by definition. 210 means 21 tens or 21 * 10. 30 means 3 tens or 3*10.

Since there is a ten on the top and bottom of the divisor 210/30 is also the same thing as 21/3. All of which is 7 and all of which is true by definition.

Step-by-step explanation:

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Modeling Compound Interest In Exercise, complete the table for an account in which interest is compounded continuously.

Mademuasel [1]

Answer:

This problem requires us to calculate, the value of investment after 10 and 25 years, and also tell the time after which intial investment amount will double. Investment rate and initial investment amount is given in the question.

Value of investment after 10 year = 600(1+8%)^10 = $ 1,295

Value of investment after 25 year = 600(1+8%)^25 = $ 4,109

Time after which investment amount double (n)

1200 = 600 (1.08)^n

Log 2 = n log 1.08

n = 9 years

6 0

3 years ago

PLZ!!!!HELP!!!What is the absolute deviation for 15 in the data set?

Brut [27]

20 + 20 + 30 + 15 + 40 = 125
125/5= 25
25-15 = 10
Absolute deviation for 15 is 10

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3 years ago

Read 2 more answers

You're standing 80 feet from the base of a building . You estimate that angle of elevation from your feet to the top is about 70

pogonyaev

Probably about (at least) 120 feet.

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3 years ago

Find the measure of each exterior angle of a regular polygon in which the sum of the measures of the interior angles is 2,520 de

goldenfox [79]

Answer:

0 y+o+u+t+u+b+e

Step-by-step explanation:

7 0

3 years ago

How do you do this? Please give an example to #1 and explain thoroughly please. I have asked multiple times and gotten answers I

liberstina [14]

Answer:

y=2x

Step-by-step explanation:

y = kx is the format of the graph we are looking for (as told in the instructions) where k is the variable we are supposed to find (like y = x, y=2x, y=3x, etc)

Note that as x increases by 1, y increases by 2. We can see that by writing a table of the points of points that the line given intersects (picture below). We can see that by the values of the x-axis and the y-axis. Why does this happen? This is because y =2x for each value of x. We notice that in our table.

Therefore, the equation is y=2x. I hope this helps! If you still have questions, ask me in the comments!

4 0

3 years ago