Answer:
Step-by-step explanation:
a
The square root of 20 = 4.47 so a for sure.
But the root of 20 is also -4.48 so that means that 2 and 3 are added to the list
Now what to do about - 8
(- 8)^2 = 64
The square root of 64 = +/- 8
It's kind of slippery but it depends on how you see the problem. It is a bit ambiguous.
I would eliminate - 8 but your instructor may not. Argue that it should not be included, but don't take the argument on forever. Let it go.
a for sure.
b and c I think so.
-8 is iffy.
Answer a
Answer:
660.5
Step-by-step explanation:
9a-4+3a-33=23
9a+3a-29=23
+29 +29
9a+3a=52
-3a -3a
9a=52-3a
9a/9=52/9- 3a/9
a=52/9-1/3a
Because division is repeated subtraction.
For example: "10 divided by 2" means "How many times can you
subtract 2 from 10 before the 10 is all gone ?".
When you divide a whole number by ' 1 ', you're trying to find out
how many times you can subtract ' 1 ' from the whole number.
Of course, the answer is the whole number itself.
Now, when you divide a whole number by a piece less than ' 1 ',
you're trying to find out how many times you can take a piece of ' 1 '
away from the whole number. Of course THAT will be more times
than the whole number itself.
Answer:
28 or 29 weeks
Step-by-step explanation:
120 + 75(28)
