If y varies directly with x and y = 21 when x = 3, find y if x = 5. First, find the direct variation equation. y = [ ? ] x​

when y = 21, x = 3

when y and x vary directly, that means there is something that you multipy x that gets you to y.

to solve for this number, you divide y by x.

21= 3=7

this means to go from x to y, you multiply x by 7.

7x = y

we can use this to solve for x when y = 42

7x = 42

divide both sides by 7

X = 6

when y = 42, x = 6

there are 25 people coming to the party

step-by-step explanation:

the text says that there will be 22 children at this party, 1 teacher, and 2 parents. so if you add them all together (22+1+2) it will equal 25. (=25)

for future students the answer is b

hope i

-lavira: )