The answer should be C. 3
Answer: A toy airplane costs $6
Step-by-step explanation: Because 4 toy cars cost $8 , then there are $30 for 5 toy planes. One toy plane cost 30/5 = $6
Subtract 14 from 15.96 to find the increase.
15.96 - 14 = 1.96
Divide 1.96 by 14.
1.96 / 14 = 0.14
In percents that is 14%.
This is an increase of 14%.
Hope this helps!
OK. Here we go:
What is the square root of 9 ?
You would say that 3 is, and you're correct.
But that's NOT the <em>only one</em> there is !
What about -3 ?
What do you get when you multiply (-3) times (-3) ?
(Remember that when the signs of both numbers are <em>the same</em>,
the answer is positive.)
(-3) times (-3) = 9
So -3 is <em>also</em> the square root of 9 .
That's right . . . every number has <em>two</em> square roots. They're both the
same number, but one is positive, and one is negative. When you
multiply <em>either one</em> of them by itself, you get the original number.
Another way to say the same thing is:
Every number has one positive square root and one negative square root,
and except for the signs, they're both the same number.
