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maxonik [38]
3 years ago
6

Andre wants to run ten miles in three days. He ran 2.5 miles on Monday and 4.4 miles on Tuesday. How many miles does Andre need

to run on Wednesday?
Mathematics
1 answer:
Daniel [21]3 years ago
4 0

Answer:

3.1 miles

Step-by-step explanation:

2.5 + 4.4 = 6.9

10 - 6.9 = 3.1

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Assume that adults have IQ scores that are normally distributed with a mean of mu equals 105 and a standard deviation sigma equa
kondor19780726 [428]

Answer:   0.6827

Step-by-step explanation:

Given : Mean IQ score : \mu=105

Standard deviation : \sigma=15

We assume that adults have IQ scores that are normally distributed .

Let x be the random variable that represents the IQ score of adults .

z-score : z=\dfrac{x-\mu}{\sigma}

For x= 90

z=\dfrac{90-105}{15}\approx-1

For x= 120

z=\dfrac{120-105}{15}\approx1

By using the standard normal distribution table , we have

The p-value : P(90

P(z

Hence,  the probability that a randomly selected adult has an IQ between 90 and 120 =0.6827

5 0
2 years ago
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125% of x is 60. What is x
Lunna [17]

Answer:

Step-by-step explanation:

1.put your percent over a 100 so

125%/100 then put 60 over x

2.then cross multiply 100x60=6000

3.then divide 6000 by 125 which is percent

4.your answer is-48

8 0
3 years ago
Read 2 more answers
11.(02.03)
Marianna [84]

Answer:

step number 1 is incorrect.

Step-by-step explanation:

Here is the solution of this equation [2x-31-1=2].

2x-31-1=2

or 2x-31=2+1

or 2x=2+1+31

or 2x= 34

or x=34/2

or x= 17

the answer of this equation is X=17.

8 0
2 years ago
If a box has a length of 12 inches, a width of 10 inches and a height of 6 inches, what is the volume?
Roman55 [17]
720

(12inches x 10inches x 6inches)
8 0
2 years ago
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Is πxy=4 a linear equation?
Darya [45]

Answer:

Yes

Step-by-step explanation:

It is a first-degree equation. Look at the exponents of each variable (x, y), they are not written because they are 1

Hope this helps

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2 years ago
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