F=ir^t, f=final amount, i=initial amount, r=common ration or "rate", t=times common ration is applied or "time", in this case:
1200=1000r^2 divide both sides by 1000
1.2=r^2 take the square root of both sides
1.2^(1/2)=r so the equation is:
f=1000(1.2)^(t/2), so in 13 hours
f=1000(1.2)^(13/2)
f=1000(1.2)^(6.5)
f≈3271 bacteria (to the nearest whole number)
<span>X+2y=10 ----Eq.1
</span><span>x+y=6---------Eq.2
from Eq2.
x=6-y
Subtituting the value of X in the first equation
6-y+2y=10
6+y=10
y=4
Plug y=4 in equation 2.
</span><span>x+4=6
</span>X= 2
The correct answer would be the last option D
Add 2 hours to make it 9:30, which is too long. Then subtract one minute to make it 9:29. so the answer is 1 minute less than 2 hours, or 1 hour and 59 minutes
You mean simplify?
You can't simplify it anymore because the numerator is an even number and the denominator odd..
But,
= 0.8
And equivalent fraction:
Multiply 2 from the numerator and denominator
