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Makovka662 [10]
3 years ago
7

I need help asap !!!!! 40 POINTS

Mathematics
1 answer:
stira [4]3 years ago
4 0

Answer:

15

Step-by-step explanation:

x+5/36 = x/27

these are similar triangles

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The mean value of 500 homes in a county is $225,000 and the standard deviation is $25,000. approximately how many of the homes i
dusya [7]

240 homes in the county are between $175,000 and $225,000.

The image attached is associated with this question and m in it refers to the mean value which is $225000 here and d refers to the standard deviation which is $25000 here.

Now since m= $225000

and $175000= $225000-$50000= $225000-(2* $25000)= m-2d

Thus, as per the image area covered between m and m-2d=  $225000

and $175000 is (34%+14%)of 500 homes= 68% of 500= 240 homes, is the answer.

A random variable X is said to follow a normal distribution if its parameters are mean and standard deviation. Every other distribution can be reduced to a normal distribution.

Learn to know more about normal distributions on brainly.com/question/4079902

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3 0
2 years ago
Please help me with this
vodka [1.7K]

Answer:

\frac{1}{2}  \times  (7.5 + 2.5) \times 2.5 = 12.5

..........................................................the answer is 12.5

7 0
3 years ago
Read 2 more answers
2a is any number a multiplied by the number 2. Calculate the value of 2a for a = 7.
marshall27 [118]

Answer:

14

Step-by-step explanation:

step 1.

substitute 'a' with 7

You are then left with a multiplication problem.

step 2.

solve 2 × 7

answer is 14

3 0
3 years ago
Kevin says these number lines show 7/8 is equivalent to 4/5. Is Kevin correct?
notsponge [240]

Yes, Kevin is correct

3 0
3 years ago
Tamika had $35. She just went to the store to buy some snacks and now has $20.50. How much did she spend on snacks?
Komok [63]
The answer is she spent $14.50

7 0
3 years ago
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