20% of 1000 gal = 200 gal of premium gasoline
80% of 1000 gal = 800 gal of regular gasoline
x = volume of premium gasoline that you need to add to the current mixture
60% of the new mixture is supposed to be premium gasoline. The new mixture would have a total volume of (1000 + x) gal, and in this total, you'd have (200 + x) gal of premium gasoline. So


You'd need to add 1000 gal of premium gasoline to get a mixture of 60% premium.
Answer:
3.6
Step-by-step explanation:
Step-by-step explanation:
A rock is blasted straight upward at 180 ft/sec from the ground. Use parametric
equations to model the situation and find:
a. The height of the rock at time = 2 seconds.
b. The maximum height the rock reaches before hitting the ground.
A rock is blasted straight upward at 180 ft/sec from the ground. Use parametric
equations to model the situation and find:
a. The height of the rock at time = 2 seconds.
b. The maximum height the rock reaches before hitting the ground.
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A rock is blasted straight upward at 180 ft/sec from the ground. Use parametric
equations to model the situation and find:
a. The height of the rock at time = 2 seconds.
b. The maximum height the rock reaches before hitting the ground.