Mike and Kim invest $18,000 in equipment to print yearbooks for school. Each yearbook costs $5 to print and sells for $15. How m
1 answer:
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Answer:
$4800
Step-by-step explanation:
Let x be the C.P of the painting.
Profit=10% of x
Profit=
If S.P increase by 240 then
Profit=15% of x=
For first case
S.P=C.P+ Profit
S.P=x+10x/100
S.P=
For second case
New S.P
=
According to question
Hence, the C.P of the painting=$4800
Answer:
a)
b)
c)
Step-by-step explanation:
a)To the left of z = 0.72.
For this case the shaded area is on the figure 1 attached.
And we can find the area with the normal standard table of with the following excel code:
=NORM.DIST(0.72,0,1,TRUE)
b)To the right of z = 0.15.
For this case the shaded area is on the figure 2 attached.
And we can find the area with the normal standard table of with the following excel code:
=1-NORM.DIST(0.15,0,1,TRUE)
c)Between z = -1.40 and z = 2.03.
For this case the shaded area is on the figure 3 attached.
And we can find the area with the normal standard table of with the following excel code:
=NORM.DIST(2.03,0,1,TRUE)-NORM.DIST(-1.40,0,1,TRUE)
