Answer:
Rational
Integer
Whole
Real
Step-by-step explanation:
<u>Rational</u><u>:</u><u> </u>
The square root of 4 is 2, which is an integer (number without decimals). A number is only irrational if it has endless decimals after it.
<u>Integer</u><u>:</u>
A number without decimals
<u>Whole:</u>
A number without fractions; an integer.
<u>Real: </u>
Real numbers include whole numbers, rational numbers and irrational numbers- pretty much any number you can think of. The only numbers that ARENT considered real are imaginary numbers like √-1 and infinity.
Answer:
20.5 and 21.5
Step-by-step explanation:
It says 2 significant figures so the least it can possibly be is 0.5 less and the most it can be is 0.5 more as if it was, lets say 20.4 it would round down to 20 not 21.
A) 8 - add up the how many numbers there are after the 4 on the left column
b) 41 - line up all of the numbers from least to greatest and find the middle number
c) 39 - do step b again but this time remove the oldest worker and add the younger one in
First, find the GCF. For these two numbers, it is 36. (Because 36 times 1 is 36 and 36 times 2 is 72)
Divide both sides by this, which gives you a
2:1 ratio
From the information obtained from the question, two equations can be created:
Let x and z be the two numbers (parts)

. . . . (1)

. . . . (2)
By transposing (2), make 'z' the subject of the equation

. . . . (3)
By substituting (3) into equation (1) to find a value for x




⇒

∴ either

OR

Thus x = 5 or x = 10
By substituting the values of x into (2) to find z
z + (5) = 15 OR z + (10) = 15
⇒ z = 10 OR z = 5
So, the two numbers or two parts into which fifteen is divided to yield the desired results are 5 and 10.