Answer: a) 15 1/2 hours
Step-by-step explanation :
1/2 ×2=1. 1×4=4 1 1/2 ×1= 1 1/2 2×2=4. 2 1/2 ×2= 5
Add all answers and you have 15 1/2 hours.
I can't really graph it here but:
Slope: <span><span>1/4</span></span>Y-Intercept: <span>−<span>5</span></span>
I=PRT
P=present amount
R=rate
T=time
basically
20+interest<u /> is more than or equal to 400
20+I<u>></u>400
minus 20 both sides
I<u>></u>380
solve
P=20
R=3%=0.03
T=?
I=PRT
380<u><</u>I=PRT
380<u><</u>20(0.03)(T)
380<u><</u>0.6T
divide both sides by 0.6
633.33333<u><</u>T
633.33 years at least
The first one is.
3 x 3A is oA
3 x 4 is +12
9a +12