Answer:
Step-by-step explanation:
<u>Sides of the picture added margin:</u>
<u>Solution</u>:
- A(margin) = Total area - A(picture)
- (8 + 2x)(5 + 2x) - 5*8 = 30
- 4x² + 10x + 16x + 40 - 40 - 30 = 0
- 4x² + 26x - 30 = 0
- 2x² + 13x - 15 = 0
- x = (-13 + √(13² + 2*4*15))/4
- x = (-13 + 17)/4
- x = 1 cm
Note. The other root is ignored as negative.
First we divide 102 by 12.75 to get the hours which is 8 hours. So it would take 8 hours
a. 122/5
b.
and then 3.14
c. 3.14 has a definite end while pi does not
Midday. midnight would be 12:00 am
Cost:amount
15/12
$1.25 for a fruit tart
