Answer:
option 1
option 3
option 4
Step-by-step explanation:
Inversely proportional means "one quality increases, the other decreases " or "one quantity decreases ,other increases. " Inverse relantionship, that's it.
option 1:
Since the volume is given as 56 and we know the volume is area of base * height, to keep the volume at constant [56], if height increases, area of base would need to decrease, and vice versa. So Inversely proportional.
option 2:
The time spend in plowing a field with a tractor with increase when we area using more fuel.So more fuel used means more time spent. So these are directly proportional, Not inverse.
option 3:
Since the price is a constant, the amount of length we buy more,the price per one yard HAS to decrease, and vice versa. So ,this is Inverse relantionship.
option 4:
If the number of identical tractors. increase, it will take less time to plow the set 358 acre farm. And vice versa. So this is Inversely proportional as well.
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Answer:
Step-by-step explanation:
Is 359’000
That’s what it should be
Answer:
a = 9
Step-by-step explanation:
Let's make the demoninators of the 2 fractions the same :
(2a+8)/10 - (5a +15)/10 = 5
(2a + 8 - 5a + 15)/10 = 5
=> -3a + 23 = 50
=> -3a = 27
=> a = 9
Answer:
3, 15/7, 9/7, 3/7, -3/7, -9/7
