Answer:
The amounts of three parts of the investment are 18000, 6000, 5000 respectively.
Step-by-step explanation:
An investment of $29,000 was made by a business club.
Let the amount of first and second investment be x and y respectively. So, the amount of third investment is (29000-x-y).
The first part of the investment earned 8% interest, the second 6%, and the third 9%. Total interest from the investments was $ 2250.

On simplification we get



..... (1)
The interest from the first investment was 4 times the interest from the second.


.... (2)
From (1) and (2) we get



Divide both sides by 0.06.

Put this value in equation (2).
The amount of third investment is

Therefore the amounts of three parts of the investment are 18000, 6000, 5000 respectively.
So first divide the equation on both sides by 3. We get

. Slope-y-intercept form is of the form

. Rearranging

, we get

. Divide by two, we get

, which is of that form.
Graphing: The y intercept is at -2, and the slope is 1/2.
Answer:
17/25
Step-by-step explanation:
We assume you want the sum ...
4/50 + 3/5
= (2·2)/(25·2) + (3·5)/(5·5)
= 2/25 + 15/25
= 17/25
_____
<em>Comment on the question</em>
We prefer math symbols:
4/50 + 3/5 = ??
or, if you can't manage that, proper English:
four fiftieths plus three fifths.
Answer:
11 shelves
Step-by-step explanation:
96/9= 10.6666
since you have more books you cannot round down you have to round up. so you need 11 shelves
Multiply the first number by 0.032 then add it to the first number and that will be your answer