Answer:
50
Step-by-step explanation:
Assuming you're solving for Q, the first step is to multiply the first set of parenthesis by 0.10:
0.10(72-Q) = 7.2 - 0.1Q
The next step is to combine the terms that have Q in them:
7.2 - 0.1Q + 0.25Q = 14.7
7.2 + 0.15Q = 14.7
Now isolate 0.15Q:
0.15Q = 14.7 - 7.2
0.15Q = 7.5
Divide 7.5 by 0.15 to solve for Q:
Q = 7.5/0.15 = 50
Answer:
12
Step-by-step explanation:
Hope this helps
The answer is the first option.
Answer:
At time t hours,
D(t) = √(5200t²)
Step-by-step explanation:
Charlies car is travelling at 40 miles/h while andy's car is travelling at 60 miles/h.
Now, distance = speed x time
Thus;
At a time t, the distance, covered by Charlie's car will be;
D1 = 40t
Similarly, At a time t, the distance, covered by Andy's car will be;
D2 = 60t
Using Pythagoras theorem,
D² = (40t)² + (60t)²
D² = 1600t² + 3600t²
D² = 5200t²
D = √(5200t²)
The standers slop form is y=mx+b