Answer:
A(2)
Step-by-step explanation:
<span>The factors of 60 are 60, 30, 20, 15, 12, 10, 6, 5, 4, 3, 2, 1.The factors of 75 are 75, 25, 15, 5, 3, 1.<span>The common factors of 60 and 75 are 15, 5, 3, 1, intersecting the two sets above.</span><span>In the intersection factors of 60 ∩ factors of 75 the greatest element is 15.</span><span>Therefore, the greatest common factor of 60 and 75 is 15.
</span></span>
Answer:
Step-by-step explanation:
30 + .40(30) = 30(1 + .40) = 30(1.4) = $42
Solve <span>4x − 3y = 3 and 5x − 4y = 3
Step 1: Solve for x in 4x-3y=3:
4x-3y=3
4x-3y+3y=3+3y [Add 3y to both sides]
4x=3y+3
</span>

[Divide both sides by 4]
x=

Step 2: Substitute

<span> for x in 5x-4y=3
5x-4y=3
5(</span>

<span>)-4y=3
</span>


[Subtract

to both sides]


[Divide both sides by

]
<span>y = 3
Step 3: Substitute 3 for y in x = </span>


x = 3
is not included as a rational number !
<u>Step-by-step explanation:</u>
Here we have , following expressions & we need to identify which of the following is not a rational number . Let's find out:
We know that , Rational Number : A number which can be expressed in form of p/q , where q is not equal to zero !
Here Expressions are:
:
Let's evaluate this expression
⇒ 
⇒ 
Therefore , It is a rational number ! .
:
Let's evaluate this expression
⇒ 
Therefore , It is a rational number ! .
:
Let's evaluate this expression
⇒ 
⇒ 
Therefore , It is a rational number ! .
:
Let's evaluate this expression
⇒
⇒
Therefore , It is not a rational number , as pi is included ! .