What is the vertical change from Point A to Point B? What is the horizontal change from Point A to Point B? 8 7 6 What is the ra
te of change shown on the graph? Give the answer as a decimal rounded to the nearest tenth, if necessary 5 4 3 B. 2. А 1 1 2 2 3 4 5 6 8 9 10
1 answer:
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Answer:
Q = 52.5
Step-by-step explanation:
given P is directly proportional to Q then the equation relating them is
P = kQ ← k is the constant of proportion
to find k use the condition Q = 30 when P = 40 , then
40 = 30k ( divide both sides by 30 )
=
= k
P = Q ← equation of proportion
when P = 70 , then
70 = Q ( multiply both sides by 3 to clear the fraction )
210 = 4Q ( divide both sides by 4 )
52.5 = Q