Answer:
From the General Equation of a straight line
Y=Mx + c
where M = Slope of the line
c= Intercept on Y axis
y=-4.2x-80
Comparing with the Eqn of a straight line
Slope = -4.2
From the Options the answers are in Fractions
You can easily convert this figure to fraction by Moving the decimal to the back once and then divide by 10
Then we have -42/10
Reducing Further
you have = -21/5.
Option D✅
Answer:
But it's your work so you shouldn't be the one complaining. You are depending on us.
Btw, the answer is deleted.
Answer:
B. $63.19
Step-by-step explanation:
You will pay $63.19 for a item with original price of $78.99 when discounted 20%. In this example, if you buy an item at $78.99 with 20% discount, you will pay 78.99 - 15.798 = 63.19 dollars.
There can be zero solutions, 1 solution or infinite solutions--each case is explained in detail below.
<span>Note: Although systems of linear equations can have 3 or more equations,we are going to refer to the most common case--a stem with exactly 2 lines.</span>
Case I: 1 Solution
This is the most common situation and it involves lines that intersect exactly 1 time.
Case 2: No Solutions
This only happens when the lines are parallel. As you can see, parallel lines are not going to ever meet.
Example of a stem that has no solution:
<span><span>Line 1: y = 5x +13</span><span>Line 2: y = 5x + 12</span></span>
Case 3: Infinite Solutions
This is the rarest case and only occurs when you have the same line
Consider, for instance, the two lines below (y = 2x+1 and 2y = 4x +2). These two equations are really the same line .
Example of a system that has infinite solutions:
<span><span>Line 1: y = 2x + 1</span><span>Line 2: 2y = 4x + 2 </span></span>
Answer:
x=2
Step-by-step explanation:
First use the distributive property on the right side... You should get then have 7x+30 = 2 + 6x + 30
Simplify further by combining like terms to get 7x + 30 = 32 + 6x
Now subtract 6x on both sides (6x - 6x cancels out) to get 1x + 30 = 32
Next subtract 30 from both sides(30-30 cancels out) to get 1x = 2
2 divided by 1 is 2 so x = 2