Answer:
1
Step-by-step explanation:
(xy)' + (2x)' + (3x^2)' = (4)'
y + xy' + 2 + 6x = 0
xy' = -y -2 -6x
y' = [-y -2 -6x] / x
Now solve y from the original equation and substitue
xy + 2x + 3x^2 = 4 => y = [-2x - 3x^2 + 4] / x
y' = [(-2x - 3x^2 +4) / x - 2 - 6x ] / x
y' = [-2x - 3x^2 + 4 -2x -6x^2 ] x^2 = [ -4x - 9x^2 + 4] / x^2 =
= [-9x^2 - 4x + 4] / x^2
Based on the terms of the invoice, the gross amount on the invoice and the date of payment, the cash discount is $19 and the net amount paid is $931.
<h3 /><h3>What is the cash discount?</h3>
The terms of the invoice are such that if the person pays within 10 days they get a 3% discount. If they pay in 15 days, they get a 2% discount.
The person paid on the 22nd after buying on the 8th so they qualify for the 2% for paying within 15 days.
The cash discount is:
= 2% x 950
= $19
The net amount paid is:
= 950 - 19
= $931
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5 is 25 percent of 20. 5 times 4 is 20. 100 divided by 4 is 25.
Answer:
7/8
Step-by-step explanation:
If you turn 1 3/4 back into a simplified fraction it is 7/4. But the denominators need to be the same, so multiply the bottom number 2 and the top number by 2. That gives you 14/8. If she used 7/8 of it, then you just do 14/8 - 7/8 which gives you 7/8.
