The equation for speed is s=d/t, s=276/6.5. Then, you divide 276 in 6.5: s is approximately 42 miles/hour. So, he drove 12 miles/hour faster getting there than coming back home.
Draw a number line!
<________|_______________|_______|___________>
-5 0 2
The ones on the right are larger than the ones on the left. The two is the rightmost number, so it is the largest. Your inequality reads "-5 is less than 2" which is true. Therefore, you have a true inequality.
Let initial price be = x = 3.24
final price = y = 4.05
Difference = 4.05 - 3.24
= 0.81
Percentage increase = 0.81 / 3.25 × 100
= 25 %
(16/18)
(24/27)
You just times 8 and 9 by the same number, like:
(8•2/9•2)=(16/18)
(8•3/9•3)=(24/27)
You could do any number:
(8•100/9•100)=(800/900)
Both are to the 5th square root, so you can multiply what is inside:
that is
=