Luke: 2 miles in 40 minutes, 20 minutes a mile, (2/40 = 20 minutes a mile)
Luke's speed is 3 miles an hour (60minutes/20minutes a mile = 3miles).
Sally: 0.05 miles a minute, 60 minutes in an hour, 60 x 0.05 = 3 miles an hour. Or 0.05 miles a minute, 40 minutes walked, 40 x 0.05 = 2 miles walked.
There are a few other ways to show that they are accurate rates.
So yes, they are both correct rates.
Answer:
25.46
Step-by-step explanation:
Use the pythagorean thereom.
18^2 + 18^2 = c^2
324 + 324 = c^2
648 = c^2
√648 = c
c ≈ 25.46
Answer:
f(-1) = 121
Step-by-step explanation:
f(x) = (5-6x)^2 (First we will substitute x for -1)
f(-1) = (5-6(-1))^2 (Then we will combine like terms)
f(-1) = (11)^2 (Then we will square it)
f(-1) = 121 (You are done)
Answer:
Step-by-step explanation:
Cone. The volume of a cone is linked to the volume of a cylinder. A cone is one third of the volume of a cylinder. ...
Sphere. The volume of a sphere is ⁴/₃ × π × r³. ...
Cylinder. The volume of a cylinder is π × r² × l (r is the radius of the circle and l is the length of the cylinder).
Answer:
Elena can make 150 t-shirts
Step-by-step explanation:
- Find the amount <em>after </em>she buys the printing machine. $1,175-$350=$825
- Divide by the cost per t-shirt $825÷$5.50=150 t-shirts
- Final answer: 150 t-shirts
