Math help?

Question

ok so i do not get what to do with this problem? what is it asking me to do? how do i do it? and answers would be nice aswell

it says

Evaluate.
V+lwh for l=4yd, w=6 yd , h=15ft (a volume formula)

D=rt for r=30 mi and t=1.5 h (a distance formula)

thanx in advance

Answer 1

It’s asking you to calculate the equations using the variable assignments provided, and to (presumably) display your thought process on paper

For example, to calculate the volume:

V=lwh for l=4yd, w=6 yd, h=15ft, you would need to:

1) Convert each variable to a common measurement
2) Perform the calculation to arrive at VOLUME

So for the first problem:

V = l * w * h
V = 4 yards * 6 yards * 15 feet
V = 4 yards * 6 yards * 5 yards (15 feet divided by 3 feet per yard)

V = 120 cubic yards

I’ll let you do the second equation, but this is the general gist of the problem.

Answer 2

I think the first formula is :
V=lwh not V+lwh

think of this as a puzzle you put together, to find V (volume)
replace the letters with their given values:
first we have to convert 15 feet to yards to match the rest.
15 ft * 1yard/3ft = 5 yd
V = (4)(6)(5)
V= 120 cubic yards


D = rt
D = 30 mi/hr * 1.5 hr = 45 mph

Answer 3

Evaluate means to substitute the given values in for the varriables in the equation, and find the numerical solution. So for the volume equation,
V= l*w*h. However, you should have the same distance UNIT for each dimension, so we convert h to yards: 15 ft / 3 feet per yard = 5 yards. With this change, V = 4* 6 * 5 cubic yards.

Answer 4

NVM, I thought that there were 36 ft in a yd....


2) again , sub the numbers in.
D= rt
D= 30 * 3/2
D= 45 miles

Answer 5

v=(4)(6)(5) 1yard=3ft
v=120yd
not sure about the distance formula what is h