Lacey baked 20 cookies with 2 scoops of flour. With 5 scoops of flour, how many cookies can Lacey bake? Assume the relationship
1 answer:
Answer:
The number of cookies baked is 50
Step-by-step explanation:
Given as:
Lacey baked 20 cookies with 2 scoops of flour
∵ For 2 scoops of flour , The number of cookies baked is 20
so,For 1 scoops of flour , The number of cookies baked is
∴ For 5 scoops of flour , The number of cookies baked is × 5
I.e Number of baked cookies = 10 × 5 = 50
Hence The number of cookies baked is 50 Answer
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Answer:
10
Step-by-step explanation:
Ground level is where h = 0, so solve the equation ...
h(x) = 0
-5(x -4)^2 +180 = 0 . . . . substitute for h(x)
(x -4)^2 = 36 . . . . . . . . . . divide by -5, add 36
x -4 = 6 . . . . . . . . . . . . . . positive square root*
x = 10 . . . . . . add 4
The object will hit the ground 10 seconds after launch.
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* The negative square root also gives an answer that satisfies the equation, but is not in the practical domain. That answer would be x = -2. The equation is only useful for time at and after the launch time: x ≥ 0.
