Answer:

Step-by-step explanation:
<em>Hey there!</em>
Well we know the constant of proportionality is 16.5 because on the table it states 1 minute is 16.5 gallons.
So we can set up the following,
W = 2.5*16.5
W = 41.25
<em>Hope this helps :)</em>
It is given that batteries come in a packs of 4. It means in each pack there are 4 batteries.
Joe used 58 batteries . So to find the total number of packets of batteries joe has to open is
Number of batteries used / Total number of batteries in each packet
= 58 / 4
= 14.5
The number of battery can not be in decimal. So we will round the answer to integer. If we round it to 14 it means 14 packets. But in 14 packets there are 14*4 = 56 batteries .
But we know that Joe used 58 batteries. So we will round the final answer to 15.
It means Joe has to open 15 packets of batteries.
If x=-6, then y=-3
Further explanation:
Direct proportion means that if a quanitity increases the other quantity also increases and vice versa
The direct proportion is written as:
If y and x vary directly then
y∝x
y=kx
where k is the proportionality constant
If k=1/2 then the expression will be:

If x=-6, then y=-3
Keywords: Proportion, Constant
Learn more about proportion at:
#LearnwithBrainly
Its the first one isosceles