0 divided by 0= 0 plus 4= 4
answers 4
Answer:
y = 48
Step-by-step explanation:
given y is directly proportional to x then the equation connecting them is
y = kx ← k is the constant of proportionality
To find k use the condition y = 36 when x = 30
k = 
= 
= 
y = x ← equation of proportionality
When x = 40 then
y = × 40 = 48
From 1 PM to 3 PM there are 2 hours in between
The number of seagulls has increased by 40 - 16 = 24 during the two hours.
The number of increase PER hour is 24 ÷ 2 = 12 seagulls per hour
Ok, so the changing aspect it the per hour. so for Naomi it would be 2x. she already has 16.5 . so her equation would be y=2x+16.5 . for Claire, the changing variable would be 4x. she already has 7.5 . her equation would be y=4x+7.5 . both equations are equal to the same variable, so you put them together to make 2x+16.5=4x+7.5 . first you would get rid of the x variables by subtacting the 2 on each side giving you 16.5=2x+7.5 . subract the 7.5 on each side and then divide by 2. then you will get your answer.
