The function is f(7), a= 7 i think this is right
Answer:
x=55 y=62.5
Step-by-step explanation:
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Sara buys a sweater with $7.5, so she saved $22.5.
Answer:
Option 1
Option 3
Option 4
Step-by-step explanation:
Inversely proportional means "one quantity increases, the other decreases" or "one quantity decreases, other increases". Inverse relationship, that's it.
Option1:
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 verse. So inversely proportional.
Option2:
The time spend in plowing a field with a tractor will increase when we area using more fuel. So more fuel used means more time spent. So these are directly proportional, NOT inverse.
Option3:
Since the price is at constant, the amount of length we buy more, the price per one yard HAS to decrease, and vice versa. So, this is inverse relationship.
Option 4:
If the number of identical tranctors increase, it will take less time to plow the set 358 acre farm. And vice versa. So this is inversely proportional as well.
