The memory card on melcher did it's camera can hold about 430 pictures. Melcher used 18% of the memory card while taking picture
2 answers:
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Answer:
New cars sold = 20,
Used cars sold = 25
Cars serviced = 290
Step-by-step explanation:
In a month they sold fifteen less used cars than twice the number of new cars.
Lets say 'x' number of new cars were sold, then:
The number of used car sold is:
In the same month they serviced fifty more than twelve times the number of new cars sold. So the number of cars serviced is:
Altogether they sold or serviced 335 cars, so the sum of all the cars sold and serviced should be 335:
Solving for 'x' we get:
Therefore, the number of new cars sold in that month is 20.
Number of used car sold
Number of cars serviced
We can also cross check by summing them up:
Answer:
Part a)
Part b)
Part c) The soccer ball will take 2.23 seconds to reach the ground
Step-by-step explanation:
we have
where
t is the time the ball has been in the air, in seconds
h(t) is the height, in feet, of the soccer ball
Part a) Write an equation that could be used to determine the time the ball traveled before it hit the ground
we know that
When the ball hit the ground, the value of h(t) is equal to zero
so
For h(t)=0
This equation can be used to determine the time the ball traveled before it hit the ground
Part b) Determine the values of a, b, and c
we know that
The formula to solve a quadratic equation of the form
is equal to
in this problem we have
so
Part c) How long will it take for the soccer ball to reach the ground after it was kicked?
Solve the quadratic equation by the formula
we have
substitute the values
---> cannot be a solution (is negative)
therefore
The soccer ball will take 2.23 seconds to reach the ground