Answer:
80 yards
Step-by-step explanation:
Using the area formula, A = lw, set up an equation where w represents the width.
The length can be represented by 3w because it is 3 times the width:
A = lw
300 = (3w)(w)
300 = 3w²
Solve for w:
300 = 3w²
100 = w²
10 = w
So, the width is 10 yards.
The length will be 30 yards since the length is 3 times the width.
Then, add the lengths and widths together to find the perimeter:
10 + 10 + 30 + 30
= 80
So, the perimeter is 80 yards
He can run 4 kilometers per minute.
Reasoning is because taking how many minutes are in an hour which is 60 and then you divided that by 15 the amount he was able to run in one hour.
Answer:
Speed= 0.6666667 miles per hour
Step-by-step explanation:
You can find the average speed of an object if you know the distance traveled and the time it took. The formula for speed is speed = distance ÷ time. To work out what the units are for speed, you need to know the units for distance and time.
Triangle sum is 3 coz triangles have 3 sides.... if that’s not right then I dunno.... there was no picture that went with this question
Answer:
I think 48, since it's an equilateral triangle.
Step-by-step explanation:
