Answer:
10,000
Step-by-step explanation:
We can find the area of the floor in cm^2 and divide by the are of 1 tile in cm^2.
1 m = 100 cm
10 m = 1000 cm
40 m = 4000 cm
area of floor = LW = 1000 cm * 4000 cm = 4,000,000 cm^2
area of tile = s^2 = (20 cm)^2 = 400 cm^2
number of tiles = 4,000,000/400 = 10,000
Answer: 10,000 tiles
It is found that the time it takes for the projectile to hit the ground would be after 20 seconds.
<h3>When does the projectile hit the ground?</h3>
The projectile would hit the ground when its height h(t), is equal to zero.
The given function that models its height is given by:
where h is the height in meters and t is the elapsed time in seconds.
Then,
h(t) = 0
t = 20
Thus, The projectile hits the ground after 20 seconds.
Learn more about projectile here;
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The correct answer would be B.6 and 7
Answer:
B. $60.50
Step-by-step explanation:
Myra spent $60.50 on the pair of jeans, with the sales tax included.
First, calculate what's 10% of $55.00. To do this, simply multiple 10% by $55.00
10% x $55.00 = $5.5
Now, we know that 10% of $55.00 is $5.5. So just add $5.5 to $55.00 to find your total amount paid!
$55.00 + $5.50 = $60.50