Answer:
a = 1/7, b = 0.2, c = 3/9
Step-by-step explanation:

placing it farther along the number line, making 0.2 the red label (b)
is the smallest fraction that you are given, so it will be closest to 0, making it the blue label (a)
so
is the green label (c)
Answer:
x = 10
Step-by-step explanation:
Find x by isolating the variable, meaning get rid of every term until the variable, in this case it's x, is on one side of the equation and everything else is on the other side.
x - 2 = 8
Add +2 to both sides of the equation to cancel out the -2
x - 2 = 8
<u> +2 +2</u>
x + 0 = 10
x = 10
<span>A bag contains 1p, 2p, and 5p coins.
3/8 of the bag are 1p coins.
There are as many 5p coins than 1p coins.
There are 640 coins in total.</span>
Answer:
(b) -4.5
Step-by-step explanation:
Choosing the correct answer here is not the same as knowing what the correct value is.
<h3>Estimate</h3>
You know that √30 < √100 = 10, so the sum must be negative. That is, 10 subtracted from a positive number less than 10 will give a negative result.
You know that 25 < 30 < 36, so √25 < √30 <√36. That is, √30 will be between 5 and 6. If we say √30 ≈ 5.5, then the sum is ...
-10 +√30 ≈ -10 +5.5 = -4.5
__
<em>Additional comment</em>
Of course, a calculator can tell you the value to the desired precision.
Answer: f(2)=19
Step-by-step explanation:
F(2) = 3(2)3 -3(2) + 1
F(2) = 24 - 6 + 1
F(2) = 19