B
add all the like terms together
9+2=11
17x+-5x=12x
Answer:
one 18" pizza contains more pizza than 2 12" pizzas
Step-by-step explanation:
area of 12" pizza:
A = πr²
A = (3.14159)(6 in.)²
A = 113 in.²
two 12" pizzas have a total area of 226 in.²
area of 18" pizza:
A = πr²
A = (3.14159)(9 in.)²
A = 254 in.²
one 18" pizzas has a total area of 254 in.²
P.S. This problem is poorly worded. Above it states "... want to make sure I get the most pizza for my money." Since there is no indication of price for either option, two 12-inch pizzas or one 18-inch pizza, we cannot calculate what the most pizza for the money is. Below it states "which option should I choose to get the most pizza?" Here it no longer asks for most pizza for the money. Now it just asks for which option gives the most pizza.
The correct question is;
Last night, Roberto spent 90 minutes doing homework, 2/3 hour reading, and 540 seconds making his lunch for the next day. How many more minutes did Roberto spend doing homework than he did reading and making his lunch? 81 minutes 50 minutes 49 minutes 41 minutes
Answer:
41 minutes
Step-by-step explanation:
We are given;
Time spent on homework = 90 minutes
Time spent reading = 2/3 hours = 2/3 × 60 minutes = 40 minutes
Time spent making lunch = 540 seconds = 540/60 minutes = 9 minutes
We want to find how many more minutes Roberto spent doing homework than he did reading and making his lunch.
Thus;
Time spent on reading and making lunch = 40 + 9 = 49 minutes
Hence, the word "how many more" means we will subtract 49 from 90.
So, "how many more minutes" = 90 - 49 = 41 minutes
Step-by-step explanation:
y -4x = -1
y = 4x -1
then y = Mx + b
m = 4
b = -1
Answer:the answer is 33
Step-by-step explanation:
