A hobby store is having a sale on picture frames buy 3 get the 4th one at 75% off. What is an expression to represent total cost of 4 frames.
Answer:
21
Step-by-step explanation:
2(7+6)-5
2(13)-5
26-5
21
Answer:
C
Step-by-step explanation:
When plugged in it is -4(-2)² which equals -16 while the others equal 16
This is a system
x is the number of advanced tickets sold
y is the number of same day tickets sold
once you label your variables then write the equations
x+ y = 45 total tickets sold
20x + 25y = 1050 money taken in
multiply the top equation by -20 and the x will drop out
-20x - 20y = -900
20x + 25y = 1050. Add the equations result is
5y = 150, divide by 5 ,
y or same day tickets cost $30
substitute 30 into first equation
x + 30 = 45 therefore x = 15