Question

With a tail wind, a plane traveled 800 mi in 5 hours. With a head wind, the plane traveled the same distance in 8 hours. Which system of equations could be used to solve this problem?

(s + w)5 = 800 and (s - w)8 = 800

(s - w)5 = 800 and (s + w )8 = 800

5s + 8w = 800 and 5s - 8w = 800

Answer 1

which one do you think it is?

Answer 2

The first one, I'm sure!

Answer 3

Please tell me I'm right haha

Answer 4

you are right :)

Answer 5

any other problems?

Answer 6

Yes I just have two more questions to finish my online study guide....

Answer 7

@bahrom7893 @ganeshie8 @mathstudent55 @AriPotta

Answer 8

for the first 1, whats the coordinate where the blue and green lines intersect ?

Answer 9

2, -1

Answer 10

thats right !

Answer 11

Yay! Ok :)

Answer 12

second q : do u knw how coordinates of points of line y=x look like ?

Answer 13

(0, 0), (1, 1), (2, 2), (3, 3), (4, 4), (5, 5),.....

right ?

Answer 14

Yes

Answer 15

do u see any such point in the given line ?

Answer 16

or easy way is to look at given options !

Answer 17

4,4 right?

Answer 18

right !, and u can confirm it in the graph also. if u see, the line is actually going thru (4,4)

Answer 19

Thank you soo much! You're awesome for explaining everything :D

Answer 20

np.. yw !