i dont know. Im sorry about that.
Answer:
B
Step-by-step explanation:
Since p and v vary inversely then the equation relating them is
p =
← k is the constant of variation
to find k use the condition p = 8 when v = 40
k = pv = 8 × 40 = 320
⇒ p(v) =
→ B
Answer:
210
Step-by-step explanation:
LCM of 42sec and 30 sec=210 sec