Answer: (-3,3) is the answer
Answer:
816 people attended on Saturday night.
Step-by-step explanation:
Answer:
y = -x + 3
Step-by-step explanation:
Subtract x and boom.
Answer:
Joanna will use 1 gallon of milk in each bowl.
Step-by-step explanation:
Divide 6 into 6 bowls to get 1
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
