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spayn [35]
3 years ago
8

Averages Question please help!

Mathematics
1 answer:
klio [65]3 years ago
7 0
Hope this helps
1.48 to 2 decimal places

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Dr. Jones deposited $500 into an account that ears 6% simple interest. How many years will it take for the value of the account
Mekhanik [1.2K]

Answer:

50 years

Step-by-step explanation:

Given data

Principal= $500

Rate= 6%

Amount = $2000

The simple interest expression is given as

A=P(1+rt)

Substitute

2000= 500(1+0.06*t)

open bracket

2000=500+ 30t

2000-500=30t

1500=30t

t= 1500/30

t= 50 years

Hence the time is 50 years

5 0
3 years ago
Read 2 more answers
A mine worker is in a tunnel 25 feet below the ground. He descends another 13 feet. What is his final position? i already know t
Marina86 [1]

Answer:  -25 - 13

This simplifies to -38

So the worker's final position is 38 feet below the ground.

A diagram is shown below.

==========================================================

Explanation:

Draw a vertical number line. Plot 0 on it to indicate the ground level, or surface level. Then plot -25 on it, which is below 0. This is 25 feet below the ground.

To move 13 further feet downward, we will subtract 13 from -25. Subtracting a positive means we move downward.

For example, start at the 30th of a building. This is marked as +30 or just 30 on the vertical number line. Subtract off 13 to go down 13 floors and we have 30-13 = 17. So after going down 13 floors, we're at the 17th floor now.

Going back to the problem at hand, we start at -25 and subtract off 13 to get the final answer -25 - 13

The answer is not -25 - -13 and it is not -25 - (-13). This is because the two negatives cancel to be a positive. So -25 - (-13) becomes -25+13. Here we're starting at -25 but then going up 13 feet. Instead we want to go down 13 feet.

------------------------------------

After we determine the expression is -25 - 13 we will effectively add the positive versions of those numbers like so

25+13 = 38

But the final answer is negative because we're starting underground and moving further underground.

We can write it like this

-25 - 13 = -(25+13) = -(38) = -38

Therefore, if the worker starts off 25 feet underground, and moves 13 feet downward, then the worker ends up 38 feet underground. Again, use the vertical number line to help see this.

Check out the diagram below.

7 0
3 years ago
Please help.
Gnesinka [82]
G(x)=|x+3|-5
 down five units means add -5 to then end of the equation
7 0
3 years ago
Read 2 more answers
What is 6,780 divided by 10
german

Answer:

the answer is 678

Step-by-step explanation: a little trick you can do is if there is a zero at the end of a number and your dividing just remove the 0. Or just do 6780/10

7 0
3 years ago
Read 2 more answers
How do i find the area
Alexus [3.1K]
Hi there! 

The formula for the area of a kite is A = 1/2(d1 x d2). Using this formula, all we need to do to find the area is to plug in each diagonal length, then solve the equation.

WORK:
A = 1/2(15 x 16)
A = 1/2(240)
A = 120cm^2

Hope this helps!! :)
If there's anything else that I can help you with, please let me know!
6 0
3 years ago
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