Answer: She invest 41500 at 7% interest and 900 at 11% interest.
Step-by-step explanation:
Formula for simple interest =
Let
Simple interest by first investment =
Simple interest by second investment =
As per given,
Total interest = $204
Hence, she invest 41500 at 7% interest and 900 at 11% interest.
Use half the fencing in each direction: 3 segments in one direction, 2 in the other.
<span>W * L = 24 million </span>
<span>3 W = 2 L </span>
<span>W * 3 W / 2 = 24 million </span>
<span>W^2 = 16 million </span>
<span>W = 4000 </span>
<span>L = 6000 </span>
<span>This shortcut (3 W = 2 L) </span>
<span>is derived from total fencing = 3W + 2L </span>
<span>and W*L = 24 million </span>
<span>total fencing = 3W + 2 * 24 million / W </span>
<span>and taking the derivative, setting to 0, and solving for W</span>
Answer:
20
Step-by-step explanation:
2 x 10 = 20
divided by 4 = 5
Well she gave 4 more than half so if she gave 19 half is 15, 19-4=15. So since it is 1/2 we have to do 15*2 which equals 30
Answer: 30 apples
Answer:
The price of 1 packet of French fries, 1 cheeseburger, and one drink cost $5.55
Step-by-step explanation:
Let
x ----> the price of 1 packet of French fries
y ---> the price of 1 cheeseburger
z ---> the price of one drink
we know that
----> equation A
---> equation B
Adds equation A and equation B
Divide both sides of the equation by 4
----> equation C
The equation C means ----> The price of 1 packet of French fries, 1 cheeseburger, and one drink cost $5.55