Answer:
h = 72
Step-by-step explanation:
set up a proportion:
7/15 = 33.6/h
7h = 504
h = 72
Answer:
296 miles
Step-by-step explanation:
4 hours=240 minutes
240/30=8
37*8=296
Answer:
52.27
Step-by-step explanation:
46:88*100 = (46*100):88 = 4600:88 = 52.27. Now we have: 46 is what percent of 88 = 52.27.
Step-by-step explanation:
0.2x² − 0.8x = 1.6
Multiply both sides by 5.
x² − 4x = 8
Complete the square by adding 4 to both sides.
x² − 4x + 4 = 12
(x − 2)² = 12
x − 2 = ±√12
x = 2 ± √12
The positive solution is x = 2 + √12 ≈ 5.46.
Answer:
60
Step-by-step explanation:
because half of children is 50. 120÷50=60