Answer:
90 grams
Step-by-step explanation:
53g+22g+15g=90grams
Plug in x and y into the equations and see which one comes out true...
Also, K12 person huh?
Answer:
x = 3 and y=4
Step-by-step explanation:
apply elimination method in simultaneous equations
Answer:
C Marie's sample is biased.
Step-by-step explanation:
It is biased because she doesn't know. It is just 1 hour so like there could be like a lot of people at 4-5 and not a lot at 10-11
Hope this helps!
Merry Christmas