Answer:
3 feet by 7 feet
Step-by-step explanation:
perimeter = 20 feet
area = 21 feet²
If the desk is a rectangle:
perimeter = 2l + 2w = 2 (l+w) = 20
2 (l+w) = 20 , divide both sides by 2
l+w = 10
area = l · w = 21
What numbers we know that have sum as 10 and their product as 21?
l + w = 10
l · w = 21
factors of 21 are 1,3,7
3+7 = 10
3 ·7 = 21
The dimensions of the desk could be 3 feet by 7 feet.
Answer:
k=-1/5
Step-by-step explanation:
1/2(10k-16)+11=-2
5k-8+11=2
5k+3=2
5k=-1
k=-1/5
Step-by-step explanation:
let me know if you need further explanation
Answer:
$435, $535
Step-by-step explanation:
You need to find out what 15% of $2900 dollars is. You can do this by multiplying the percent of $2900, (.15*2900) which gives you 435, so he will need to pay down $435
Then, to find out the finance charge, i believe that that is how much extra you need to pay to get what you need. So, subtract the down payment ($435) and the monthly payent ($250*12=3000) from the cost (2900) to get the finance charge. (3000+435-2900=$535)
I believe that that is what the finance charge is, but I for sure know the first one. Good luck!
Answer:
5x^2(2-3x)
(n+4)(x+y)
Step-by-step explanation: