The ordered pair is a solution of x - y = 2 and 3y - x = 8 is (x, y) = (7, 5)
<h3><u>Solution:</u></h3>
Given two equations are:
x - y = 2 and 3y - x = 8
<em><u>To find: orderes pair i.e (x, y)</u></em>
Let us consider:
x - y = 2 ------- eqn 1
3y - x = 8 --------- eqn 2
<em><u>Let us solve eqn 1 and eqn 2 to find values of "x" and "y"</u></em>
On rearranging eqn 2, we get
-x + 3y = 8 ------ eqn 3
Add eqn 1 and eqn 3
x - y = 2
-x + 3y = 8
(+) ---------------
0 + 2y = 10
2y = 10
<h3>y = 5</h3>
Therefore from eqn 1,
x - y = 2
x - 5 = 2
x = 5 + 2 = 7
<h3>x = 7</h3>
Thus the ordered pair to the given equations are (x, y) = (7, 5)
7% x 100 = 0.07
hope this helps
<span>y = - 5x + 1
</span>y = - 5x + 1
We can see that when x=0, y=1.
y = -5*0 + 1=1
(0,1)
Then we need try several points.
<span>(–2, 11)
</span>11=-5(-2)+1 = -11 True
(1, -4)
-4=-5*1 +1 -4 True
It looks like we have 3 points in A. So, the answer is A.
We can check other points(solutions) using the same way if we want.
10 of JR107 = 7.99 × 10 = 79.90
15 of JT188 = 10.99 × 15 = 164.85
103 of LT23 = 110.00 × 103 = 11,330
total = $11,574.75
Answer:
60
Step-by-step explanation:
Every 15 minutes so multiply that by 3 to get 45, now multiply 20 by 3 which is 60
