Answer:
<h2>5x - y = 3</h2><h2>5x - y - 3 = 0</h2>
Step-by-step explanation:
y = 5x - 3 <em>it's a slope-intercept form</em>
<em />
y = 5x - 3 <em>subtract 5x from both sides</em>
-5x + y = -3 <em>change the signs</em>
5x - y = 3 <em>it's a standard form</em>
<em />
5x - y = 3 <em>subtract 3 from both sides</em>
5x - y - 3 = 0 <em>it's a general form</em>
x + 2 y = 0 is the equation that has the value (1.8, -0.9).
<u>Step-by-step explanation:</u>
The solution is (1.8,-0.9) and the given equations are
x-2y= 4....... 1
4x+5y= 8.....2
6x-5y=15.....3
x+2y=0........4
Substitute the solution in all the equations and equate the resulting values.
∴ Substitute (1.8, -0.9) in equation 1.
1.8-2(-0.9) = 4.
1.8 + 1.8 = 4.
3.6 ≠ 4.
Substitute (1.8, -0.9) in equation 2.
4(1.8)+5(-0.9)=8
7.2-4.5=8.
2.7≠8.
Substitute (1.8, -0.9) in equation 3.
6(1.8)-5(-0.9)=15.
10.8 + 4.5=15
15.3≠15.
Substitute (1.8, -0.9) in equation 4.
1.8+2(-0.9)=0.
1.8-1.8=0.
0=0.
∴x + 2 y = 0 is the equation that has the value (1.8, -0.9).
<u></u>
Answer:
84
Step-by-step explanation:
140% of 60 = 60 times 140% = 60 × 1.4 = 84
Answer:
Rate of change = 3
Step-by-step explanation:
The rate of change is the slope.
Slope = 3
D. -48
Put it into your calculator exactly how it is shown up above and you will get the correct answer. Your calculator automatically knows the order of operations.
