Answer:
writing this down numerically gives us
3x+2=5x-1
(x-the number)
to solve...
add 1 to each side
3x+3=5x
subtract 3x from each side
3=2x
2x=3
divide by 2 to get x
x=3/2
x=1.5
Answer: 0.0668
Step-by-step explanation:
Given the following :
Mean (m) Cost = RS385
Standard deviation (s) = RS110
Assume a normal distribution, Probability that domestic airfare is RS550 or more?
P(x > 550)
Find the z - score
Z - score = (x - m) / s
Where x = 550
Z = (550 - 385) / 110
Z = 165 / 110 = 1.5
P(Z > 1.5) = 1 - P(Z ≤1.5)
Using the z table : 1.5 = 0.9332
Therefore,
1 - P(Z ≤1.5) = 1 - 0.9332 = 0.0668
P(x > 550) = 0.0668
Answer:
114,2
Step-by-step explanation:
the square = 8×8 = 64
the quarter circle=
64+50,24=114,24
Answer:
paul had £5x=£65
Step-by-step explanation:
Dan: Paul = 9:5
Dan £9x, Paul £5x
9x-26=5x+26
9x-5x=52
4x=52
x=13
9x=117
5x=65
paul had £5x=£65
Answer:
A
Step-by-step explanation:
You can look at the graph and infer that the line passes through 32 34 36 and so on
or
you can substitute y for the bill and x for the number of songs to see which graph is correct
y = 30 + 2x
For A, the line goes through 32 34 36 38 40 42 44 46 and 48
You can plug in 32 for y and 1 for x and so on
32 = 30 + 2*1 = 30 + 2
34 = 30 + 2*2 = 30 + 4
36 = 30 + 2*3 = 30 + 6
38 = 30 + 2* = 30 + 8
and so on
