Answer:
9.2, 11/12, 91.7, 91.6, .91
Step-by-step explanation:
Look at the picture..............
Easiest method solving 2 unknowns is Substitution.
So there will normally be 2(ormore)equations given.
Say
X+Y= a
bX=cY + d
a b c d are numbers they give
So first we rearrange the first equation
X = a - Y
No we substitute this into the 2nd equation so that we can get Y
since we know X = a-Y,
b(a-Y) = cY + d
we rearrange and we can find Y for this, it is just Y and numbers
hence finding Y, we sub the value for Y into X = a-Y and we get X also .
There is not enough information did they share the pizza before the ones left or after that means there could be 2 probable outcomes
