PLEASE HELP ASAP!!!! 2 MATH QUESTIONS!!
1 answer:
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Answer:
20%
Step-by-step explanation:
Not sure if this is exactly correct, but let's say we start with 1 unit. If it increased by 25%, we get:
1 × 1.25 = 1.25 units.
Now, to get back to 1 unit, we need to find:
1.25 × ? = 1
? = = 0.80
So, 100% - 80 % = 20%
A 20% decrease.
Not completely sure though.
Answer:
1st option
Step-by-step explanation:
Given y varies inversely as x then the equation relating them is
y = ← k is the constant of variation
To find k use (3, 8 ) , that is x = 3 when y = 8 , then
8 = ( multiply both sides by 3 )
24 = k
y = ← equation of variation