Answer:
4cm
Step-by-step explanation:
Volume of a prism :Area of cross section x height.
so,
72cm^3 = 18cm^2 x h
h = 72/18 = 4cm
Hope this helps
Good Luck
Answer:
$20
Step-by-step explanation:
3x + 100 = 160
3x = 60
x = 20
Answer:
Total time when cost are equal = 600 minutes
Total cost = 104
Step-by-step explanation:
Given:
Plan A = costs 8 plus an additional 0.16 for each minute
Plan B = costs 20 plus an additional 0.14 for each minute
Find:
Total time when cost are equal
Computation:
Assume total time = x minutes
Plan A = 8 + 0.16x
Plan B = 20 + 0.14x
Plan A = Plan B
8 + 0.16x = 20 + 0.14x
0.02x = 12
x = 600 minutes
Total time when cost are equal = 600 minutes
Total cost = 8 + 0.16x
Total cost = 8 + 0.16(600)
Total cost = 104
It's a notation for a function in a function in a function... (f ° g)(x) means f(g(x))
So you use h(x) as x in g(x) then g(x) as x in f(x).
Should get C for an answer.
Answer:
It will cost 124 cents to buy 31 inches of wire.
Step-by-step explanation:
12 inches costs 48 cents
1 inches will cost her 
→ 4 cents
Then 31 inches will cost: 31 * 4 → 124 cents
