Answer:
26.14 ft/s
Step-by-step explanation:
Assume that the acceleration was constant throughout the whole fall and equal to the acceleration of gravity which is roughly 32.17 ft/s.
If the distance travelled was 26 ft, the time it took him to land was:
At the apex, just before the fall, the skateboarder velocity is zero. The velocity of an object, initially at rest and accelerating at a constant rate, is:
The skateboarder's velocity at the moment he touched down onto the ramp was 26.14 ft/s.
In partial-quotients<span> division, it takes several steps to find the </span>quotient<span>. At each step, you find a </span>partial<span> answer (called a </span>partial quotient); then you find the product of thepartial quotient<span> and divisor and subtract it from the dividend. Finally, you add all the</span>partial quotients<span> to find the final </span>quotient<span>.</span>
Answer:
The quantity of coffee costing $4 a pound in the coffee mixture is 2 pounds.
Step-by-step explanation:
Given: Coffee costing $4 a pound is mixed with 3 pounds of coffee costing 4.50 a pound to obtain a mixture costing $4.30 a pound.
We have to find the quantity of coffee costing $4 a pound in the mixture.
Let x represent the number of pounds of $4 coffee.
Cost of one pound = 4x.
Cost of 3 pounds of coffee costing 4.50 a pound = 3(4.50)
Cost of mixture costing $4.30 a pound = (x+3)(4.30)
According to given problem,
Solving for x, we get,
Rearranging like term together, we get,
Thus, the quantity of coffee costing $4 a pound in the coffee mixture is 2 pounds.