Question

Math help

Answer 1

A & B

Answer 2

are you able to solve an equation when there is just one variable?

Answer 3

yeah

Answer 4

then substitution is a method that should work for the first one:

we see from the setup that x+y = 65, and by annoyance they say y is a vegetable instead of using a variable named v ...

let x = 65 - y for all x parts in the setup

Answer 5

16x + 12y = 972

substitute in for x

16(65-y) + 12y = 972

now you have a one variable equation ... solve for y

Answer 6

how i solve for x?

Answer 7

x = 65 - y

so once you know what y is ...

Answer 8

wait im confused

Answer 9

tell me what your confusion is ... im terrible at reading minds

Answer 10

what u just told me x = 65 - y am i suppose find y or x?

Answer 11

you are spose to find both

the idea of substitution is that you can solve one equation for one variable

after knowing what its value is you can then determine the other value by default

Answer 12

these are your equations that must be true for some xy values right?

16x + 12y = 972
x+y = 65

Answer 13

we can find an equation for x (or y) ... i chose x

since x+y = 65; we know that for some value of y: x = 65 - y

this has to be true for every single x part that we have in the setup, so lets use that in the first equation:

16x + 12y = 972
^^
replace x with 65-y

16(65-y) + 12y = 972

now we can solve for y ... and once we know y; x = 65-y

Answer 14

once x and y are known, then we can start assessing the options:

does: 12y = 48 ?

does: x = 48 ?

does: 3x = y ?

does: y = 48 ?