Answer:
45/512
Step-by-step explanation:
5C3(0.25³)(0.75²) = 45/512
0.0879 (3 sf)
Answer:
6
Step-by-step explanation:
6
Answer:
y ≥ 3x - 1
y < 
Step-by-step explanation:
Let the equation of the solid line passing through (x', y') given in graph is,
y = mx + b
Here m = slope of the line
b = y-intercept
Slope of the solid line =
m =
m = 3
y - intercept 'b' = -1
Therefore, equation of the line will be,
y = 3x - 1
Since, shaded (blue) area is above the line, inequality that will represent the solution area will be,
y ≥ 3x - 1
For the dotted line,
Slope of the line (m) = 
= 
= 
y-intercept (b) = 2
Equation of the dotted line → y = 
Since, shaded (grey color) area is below the dotted line,
Inequality representing the solution area will be,
y < 
This is the concept of proportionality, we are required to calculate for the number of hours two crews can use to paint the house altogether.
Here proceed as follows;
number of hours new crew can paint=12 hrs
portion of work painted by new crew in 1 hour= 1/12
number of hours experienced crew can paint=6 hours
Portion of work painted by experienced crew in 1 hour=1/6
Portion of work painted by the two crews altogether in 1 hour will be:
1/6+1/12=1/4
thus the total amount of hours that the two painters will take to paint will be:
4 hours
Answer:
Answer
Profit = SP - CP
Profit = 1200 - 800
Profit = 400
Henceforth,
Profit made on the article is ₹400