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mezya [45]
3 years ago
13

suppose that prices of a certain model of new homes are normally distributed with a mean of $150,000. use the 68-95-99.7 rule to

find the percentage of buyers who paid: between $150,000 and $152,700 If the standard deviation is $900.
Mathematics
1 answer:
Lelechka [254]3 years ago
5 0
152700 is answer. Try to do these problems on paper then you can see where you went wrong . also try to do the actual question

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at a class pizza party each pizza ordered had 2/8 of the pizza left over after the party. In all, 1 1/2 pizzas were left over. H
tatuchka [14]
Simplify 2/8
2/8=1/4

1/4 of all pizzas=1 and 1/2 pizza
convert to improper
1 and 1/2=1+1/2=2/2+1/2=3/2
1/4 of all pizzas=3/2 pizza
times both sides by 4/1
4/4 of all pizzas=12/2 pizza
all pizzas=6pizza


6pizzas were orderd
4 0
3 years ago
Which step is it?? Please help me.
eduard

Answer:

Use PEMDAS so division would be the first step

Step-by-step explanation:

1)Parentheses

2)Exponents

3)Multiplication

4)Division

5)Addition

6)Subtraction

6 0
3 years ago
A water bottle contains 1.5 L of water. Approximately how many gallons does the water bottle contain?
Alona [7]

Answer:

The bottle contains approximately 0.396258 gallons of water.

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
Assume that t varies jointly as r and q2². If t=320 when r=5 and q = 4, what is the value of q when r= 1 and t= 196?
Harrizon [31]

Step-by-step explanation:

t = k(r)( {q}^{2} )

320 = k(5)( {4}^{2} )

320 = 80k

k = 4

196 = 4(1)( {q}^{2} )

49 =  {q}^{2}

q = 7

4 0
2 years ago
Ellen is playing a video game in which she captures butterflies.there are 3 butterflies on screen, but the number of butterflies
Anestetic [448]

Answer.... 32

when a number doubles, it is simply a higher power of 2  

so there are 3 butterflies in the beginning, which can also be written as 3 * (2^0) where the 0 is the initial power, since anything to the 0 power is 1 (except for 0)  

so the expression would be 3 * (2^n)  

after 4 minutes, it would be 3 * (2^4) or 3 * 16 or 48  

to find out how many are remaining, we know that she captured 7 of them, so it would be 3 * (2^4) - 7  

for question 2, Jeff texts 4 classmates, and then they each text 4 classmates, so that would be 4^2 or 16, but since 2 people do it, it would be

32

i saw this on yahoo hope it helps

7 0
3 years ago
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