Can someone me on these 2 algebra questions?
my teacher even gave me hints and i still don't know. /:
1. anita and joelle bowled together and their combined total score for one game was 425 points. anita’s score was 40 less than twice joelle’s. what were their scores? write a system of equations to model the problem if x represents joelle’s score and y represents anita’s score.
a. x + y = 425
y = 2x – 40
b. x + y = 425
y = 2x + 40
c. x – y = 425
y = 2x – 40
d. x + y = 40
y = 2x – 425
*teacher hint*
what two things are we looking at? (they breathe) assign each of them a variable.
look at the two pieces of information they’re giving you separately.
what was their total?
how do those “things you’re looking for” compare to each other?
2. elena bought 320 tropical fish for a museum display. she bought 7 times as many trigger fish as parrot fish. how many of each type of fish did she buy?
which is a system of equations to model the problem if x represents the number of parrot fish elena bought and y represents the number of trigger fish she bought?
a. x + 7y = 320
y = 7x
b. x + y = 7
y = 320x
c. x + y = 320
y = 7x
d. x – y = 320
y = 7x
*teacher hint*
what two things are we looking at? (they are found in the water) assign each of them a variable.
look at the two pieces of information they’re giving you separately.
how many are there total?
how do the number of those “things you’re looking for” compare to each other?