Answer:
x=-20
Step-by-step explanation:
x-3/4x=3/10x-1
20x-15x=6x+20
5x=6x+20
5x-6x=20
-x=20
x=-20
Answer:
Answer is given below with explanations.
Step-by-step explanation:

<em>HAVE A NICE DAY</em><em>!</em>
<em>THANKS FOR GIVING ME THE OPPORTUNITY</em><em> </em><em>TO ANSWER YOUR QUESTION</em><em>. </em>
Answer:
--- Running cost
--- Monthly income
71 cars
R1775
Step-by-step explanation:
Given
Expenses

per car
Income
per car
Solving (a): Expression for the running cost
This is calculated as:

Where
y = Total running cost
x = number of cars
So:


Solving (b): Expression for monthly income
This is calculated as:

Where
y = Total income
x = number of cars
So:


Solving (c): Break even
To do this, we equate the expressions in (a) and (b)


Collect Like Terms


Solve for x


Solving (d): How much to break even
Substitute 71 for x in any of (a) or (b)



<em>Solving (e): There is no question to answer on the "graph"</em>
Answer:
z/3 = 3/2 so 2z = 9 z = 4.5 cuz triangles are proportional
Answer:
7,7.5,8,8.1
Step-by-step explanation:
count 1 to 10. See what comes first and that's how you determine what comes first.