Phillip is rolling two number cubes. How many different ways can he roll the number cubes and get a sum of 6?
2 answers:
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Answer:
Train A's unit rate is 70 km per hour.
Train B's unit rate is 75 km per hour.
Train B is faster.
Step-by-step explanation:
Train A:
Distance traveled by train A is given as,
Where, is time in hours and
is distance in kilometers.
Unit rate for train A is the distance traveled by it in 1 hour.
For t hours, distance traveled by train A =
∴ For, 1 hour, distance traveled by train A = km per hour.
Therefore, unit rate for train A is 70 km/h.
Train B:
From the table,
Distance traveled in 2 hours = 150 km
∴ Distance traveled in 1 hour = km per hour.
Therefore, unit rate for train B is 75 km/h.
Speed is distance traveled per unit time.
Therefore, unit rate is nothing but speed of train.
As unit rate of train B is greater than that of train A, speed of train B is greater and thus faster.
Answer:
Yes, with 12 feet leftover.
Step-by-step explanation:
For this problem, you will need to find the area of the floor and the area of both sides of the tent. To find the area of the floor, you will simply need to do 6(8) = 48. To find the area of the sides, you will need to use the Pythagorean theorem to find the height of the sides. Simply divide 6 by 2 to find b². So, the formula will be 3²+4² = c². Solve to get c = 5. Now, find the area of the rectangle by using the formula for area. 8(5) = 40. Multiply 40 by 2 because there are two sides. Now add the total area of both sides and the floor to get a total of 128. Now to see if the canvas can cover the area of the tent, do 140 - 128 to get 12. So the answer is yes, with 12 feet leftover.
Work:
Area of the floor:
6(8) = 48
Area of the sides:
A = 8(h)(2)
A = 16(h)
h² = 3² + 4²
h² = 9 + 16
=
h = 5
A = 8(5)(2)
A = 80
Total area of the tent:
80 + 48 = 128
Total area of the canvas:
14(10) = 140
Answer to the question:
140 - 128 = 12
By the way, sorry for the late answer. I bet this was on a test, right?
