Question

Bernie counted the cars and motorcycles that passed his house in 45 minutes. He counted 26 vehicles and 88 tires. How many motorcycles passed his house?

7

8

9

10

Answer 1

c = number of cars....m = number of motorcycles

c + m = 26

Number of tires on cars + Number of tires on motorcycles = 88
4c + 2m = 88

Answer 2

@Hannnnah there's 2 ways to doing this, I'd recommend using what Bangkok wrote above. Do you know how to solve systems of equations?

Answer 3

No this isn't my school work its my little brothers and i have to check it for him but I dont know if the answers were right so yeah I just asked on here

Answer 4

Mkay, but I mean do you know how to solve systems of equations?

Answer 5

No I haven't done this in like 2 years lol

Answer 6

k, I'd use substitution method,

C + M = 26
4C + 2M = 88

M = -C + 26

4C + 2(-C + 26)

4C -2C + 52 = 88

2C + 52 = 88
-52 -52

2C = 36
/2 /2

C = 18

with common logic you know that 18 cars passed by so if a total of 26 pass and 18 were cars, 26 - 18 = 8, so 8 were motorcycles.

Or, C = -M + 26

4(-M + 26) + 2M = 88

-4M + 2M + 104 = 88

-2M + 104 = 88
-104 -104

-2M = -16
/-2 /-2

M = 8

M being motorcycles

Answer 7

Okay thanks so much (:

Answer 8

Yw, "2 years ago" what grade are you in now o.o

Answer 9

Im not in high school lol

Answer 10

Ah, was curious if they didn't teach you this before o.0

Answer 11

I dont remember any of it

Answer 12

Oh i thought you weren't in highschool \(\ yet \)

Answer 13

Nope lol

Answer 14

I'm lost now, I'm just going to assume you're not in high school yet :> correct me if i'm wrong

Answer 15

No I am not i am not in school lol