Answer:
Step-by-step explanation:
The slope-intercept form of an equation of aline:
<em>m</em><em> - slope</em>
<em>b</em><em> - y-intercept</em>
The formula of a slope:
From the graph we have the points:
(-5, -5)
y-intercept (0, -2) → <em>b = -2</em>
Calculate the slope:
Put the value of the slope and the y-intercept to the equation of a line:
Answer:
Marked Price =MP=550 Marked Price =MP=550
Selling Price=SP=550-10%=550-55=495Selling Price=SP=550-10%=550-55=495
The profit earned is , SP−Profit=CP(CostPrice)The profit earned is , SP−Profit=CP(CostPrice)
CP=495−75=420CP=495−75=420
The difference of MP and CP is 550−420=130The difference of MP and CP is 550−420=130
The percentage of difference w.r.t CP is The percentage of difference w.r.t CP is
130420×100=30.95%
Step-by-step explanation:
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I think it is 4,000,000 I’m not 100% sure
Answer:
Solve by Substitution :
// Solve equation [2] for the variable y
[2] 5y = 15x - 4
[2] y = 3x - 4/5
// Plug this in for variable y in equation [1]
[1] 15x - 20•(3x-4/5) = 7
[1] -45x = -9
// Solve equation [1] for the variable x
[1] 45x = 9
[1] x = 1/5
// By now we know this much :
x = 1/5
y = 3x-4/5
// Use the x value to solve for y
y = 3(1/5)-4/5 = -1/5
Solution :
{x,y} = {1/5,-1/5}