We can estimate the first one since it is not a perfect square.
It should be between about 14 to 15 because 14 squared is 196 and 15 squared is 225. So it is 14 something.
Now for the third one, we can change that into 10 since 10 squared is 100.
Now you have 4..., -10, 10, and 11.5
So the order is: -10, radical 220, radical 100, and 11.5
Answer:
32
Step-by-step explanation:
if he has 32 and brought 8 thats a total of 40 because 32+8=40, then if the fire burned half of the boxes 40/2 = 20
Answer:
Step-by-step explanation:
what is the question?
Answer: The cost for one hamburger is $2.5
Step-by-step explanation:
Let x represent the cost of one hamburger.
Let y represent the cost of one fry.
The tennis coach took his team out for lunch and bought eight hamburgers and five fries for $24. This means that
8x + 5y = 24- - - - - - - - - - - -1
The players were still hungry so the coach bought six more hamburgers and two more fries for 16.60. It means that
6x + 2y = 16.6- - - - - - - - - - 2
Multiplying equation 1 by 6 and equation 2 by 8, it becomes
48x + 30y = 144
48x + 16y = 132.8
Subtracting, it becomes
14y = 11.2
y = 11.2/14
y = 0.8
Substituting y = 0.8 into equation 1, it becomes
8x + 5 × 0.8 = 24
8x + 4 = 24
8x = 24 - 4 = 20
x = 20/8
x = 2.5
The answer us 25/4
the third option
