Answer:
Step-by-step explanation:
Let's put in some numbers to make this easier to understand.
Let's say she has to travel 20 km.
On Monday, she travels at 4 kph. This takes 5 hours.
On Tuesday she travels 25% faster, at 5 kph. This takes 4 hours.
To figure percent reduction we take
100 % * (old - new) / old
100 % * (5 hr - 4 hr ) / 5 hr
100 % * 1 hr / 5 hr
100 % * 0.20
20% reduction.
I came up with when x=9, y=6.
Answer:
When the dimensions are doubled, the volume is eight times the original volume.
Step-by-step explanation:
difference in volume = volume of prism with dimensions doubled / original volume of prism
Volume of a prism = length x width x height
original volume of prism = 7 x 5 x 12 = 420
doubled dimensions of prism = (7x2) x (5x2) x (12 x 2)
volume = 14 x 10 x 24 = 3360
3360 / 420 = 8
She will most likely buy food for her family
Food comes before pleasure of ones self
