Answer:
x=27
Step-by-step explanation:
expanding the above expression we get
5x+5=4x+32
grouping numbers with coefficient of x at the left side and constant at the right side we get
5x-4x=32-5
x=27
Answer:
P(XX) = 69/190
Step-by-step explanation:
Given:
20 balls, 10R, 3B, 7W.
Two taken without replacement.
Find probability of two identical colours.
P(XX)
Solution:
We use the multiplication rule for the probability of each of the 2 draws
P(RR) = 10/20*9/19 = 90/380
P(BB) = 3/20*2/19 = 6/380
P(WW) = 7/20*6/19 = 42/380
Probability of drawing two identical coloured balls
P(XX) = (90+6+42)/380 = 138/380 = 69/190
Answer:
Step-by-step explanation:
The slope of two parallel straight lines are the same.
Now, the slope of the line 
is 
as the straight line equation is in slope-intercept form.
Now, the equation of the straight line in slope-intercept form which is parallel to the above line is 
............. (1) , where c is any constant.
Now, point (-2,2) is on the line (1) {Given}
So, this point will satisfy the equation.
Hence, 
⇒ c = 3.
Therefore, the equation of the required straight line is (Answer)
General equations Plan A = 50 + 0.04x, Plan B = 60 + 0.02x
Set them equal 50 + 0.04x = 60 + 0.02x
Rearrange and simplify 0.02x = 10
Divide by 0.02 x = 500 minutes
Answer:ellipse
Step-by-step explanation:
