Will mark
seiji and gavin both worked hard over the summer. together they earned a total of $400. gavin earned $25 more than seiji.
(a) write a system of equations for the situation.
(use s for the amount seiji earned and g for the amount gavin earned.)
(b) graph the equations in the system.
(c) use your graph to estimate how much each person earned

Step-by-step explanation:

let Gavin be G

Let Seiji be S

G + S = 425

G = 25 + S

I can't really graph, but plug in some numbers to G and S that works in BOTH equations. Then graph it.

G + S = 425

G = 25 + S

(25 + S) + S = 425

2S + 25 = 425

2S + 25 (-25) = 425 (-25)

2S = 400

2S/2 = 400/2

S = 200

Seiji made 200 dollars

Now choose one of the equations to use (the easier the better) in this case i will choose this one:

G = 25 + S

pug in 200 into S (because that is how much Seiji made)

G = 25 + (200)

G = 225

Seiji made 200, Gavin made 225

200 + 225 = 425, which is the total amount the made

hope this helps

Read more on -