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insens350 [35]
3 years ago
10

Rolex buys a computer disks at a price of 4 for $5 and sells them at a price of 3 for $5 . How many computer disks must he sell

to make a profit of $100
Mathematics
1 answer:
mezya [45]3 years ago
4 0
He buys them at a unit price of 0.80 a CD. (to find this just divide the number of materials by the cost) And he sells them for 0.60 a piece. Then, you have to divide 100 by 0.60, which would be estimated to around 167. ( the exact number is 166.6666667) So, about 167 CD's would have to be sold by him to make at least a profit of $100. 
Hope this helped.
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Graph the first six terms of a sequence where a1 = 2 and r = 4.
zavuch27 [327]
We are given with
a1 = 2
r = 4

These are components of a geometric series. The first term is 2 and the common ratio is 4. To get the first six terms, we use the formula:
an = a1 r^(n-1)
a1 = 2 (4)^(1-1) = 2
a2 = 2 (4)^(2-1) = 8
a3 = 2 (4)^(3-1) = 32
a4 = 2 (4)^(4-1) = 128
a5 = 2 (4)^(5-1) = 512
a6 = 2 (4)^(6-1) = 2048
8 0
3 years ago
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The value of homes sold in Hampton VA are normally distributed with a mean of $200,000 and a standard deviation of $10,000. If 1
LenKa [72]

Answer:

84%

Step-by-step explanation:

What we must do is calculate the z value for each value and thus find what percentage each represents and the subtraction would be the percentage between those two values.

We have that z is equal to:

z = (x - m) / (sd)

x is the value to evaluate, m the mean, sd the standard deviation

So for 190000 we have:

z = (190000 - 200000) / (10000)

z = -1

and this value represents 0.1587

for 230000 we have:

z = (230000 - 200000) / (10000)

z = 3

and this value represents 0.9987

we subtract:

0.9987 - 0.1587 = 0.84

Which means that it represents 84% of the houses

3 0
3 years ago
21) There are 35 people going to a museum. Each ticket costs $20. What is the
Bas_tet [7]
35 x 20 dollars= 700 dollars. Total cost of all tickets equals 700 dollars
4 0
3 years ago
PLeasehelppp me with this problem
melisa1 [442]
You would need 8.25 cups 
8 0
3 years ago
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Plz help me I need help I am so stuck
lana [24]
Answer:

4^-5

Step-by-step explanation:

Since the have liked exponents, the exponent stays the same and divide 8 by 2 which equals 4.

Then place the exponent back to the quotient

6 0
2 years ago
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