Ben brought a total of 11 pizzas for his class party the amount of larage pizza was one less than twice the amount of medium . How many large and how many medium pizzas did he buy?
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Answer:
m=4 and L=7
Step-by-step explanation:
The problem above can be solved by using algebraic expressions. First, let's get the number of medium pizzas.
Let's solve.
m+L=11
L=2m-1
m+(2m-1)=11
m+2m-1=11
3m-1=11
3m=11+1
3m=12
m=[tex]\frac{12}{3}[/tex]
m=4
Ben bought 4 medium pizzas.
Next, let's get the number of large pizzas he bought.
L=2m-1
L=2(4)-1
L=8-1
L=7
Ben bought 7 large pizzas. This makes the third choice correct.
Let's check.
m+L=11
4+7=11 (correct)