Answer:
Sophie has 12.5 cards
Step-by-step explanation:
Let
x -----> number of cards Sophie has
y -----> number of cards Jackie has
we know that
x+y=30 -----> equation A
y=x+5 -----> equation B
Solve by substitution
Substitute equation B in equation A and solve for x
x+(x+5)=30
2x=30-5
x=12.5 cards
Note I assume the problem was invented without taking into account the result, because the amount of cards should be a whole number
Your equation would be:
D. y = 10x + 6
Answer:
(9(x+3))-5
Step-by-step explanation:
(9+8+2)/(4+9+8+2)=19/23=82%
Therefore very likely
Answer:
b
Step-by-step explanation:
