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3 years ago

What causes deflation?

Mathematics

2 answers:

alexgriva [62]3 years ago

6 0

Answer:

the answer is C and I hope that helps you have a good day

Elan Coil [88]3 years ago

3 0

Answer:

root

Step-by-step explanation:

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Hector had 30 minutes to do a three-problem quiz. He spent 11 3 4 minutes on question A and 6 1 2 minutes on question B. How muc

stich3 [128]

Answer:

$11 \frac{3}{4}$ min

Step-by-step explanation:

In order to solve this problem, we must subtract the times he has already used from the time he has available, so we get:

$30-11 \frac{3}{4} - 6 \frac{1}{2}$

we can start solving this subtraction by turning all of the numbers into improper fractions so we get:

$\frac{30}{1}-\frac{11*4+3}{4}- \frac{6*2+1}{2}$

$\frac{30}{1}-\frac{47}{4}- \frac{13}{2}$

next, we can find a least common denominator. In this case it will be 4, so we need to turn all denominators into a 4, so we get:

$\frac{30*4}{1*4}-\frac{47}{4}- \frac{13*2}{2*2}$

$\frac{120}{4}-\frac{47}{4}- \frac{26}{4}$

and now we can subtract the numerators and copy the denominators so we get:

$\frac{120-47-26}{4}$

$\frac{47}{4}$

which can now be turned into a mixed number by dividing 47/4 which yields 11 with a remainder of 3, so the mixed number is:

$11 \frac{3}{4}$ min

and this is the amount of time he has available to solve the las problem.

6 0

3 years ago

An arithmetic series begins 29+25+21+... find the maximum value that the series could have

Fittoniya [83]

The series' value is maximized if the sum only consists of positive terms. Notice that each term in the sum takes the form 4n + 1 for integer n. This means the smallest positive integer that the sum can involve is 1, so the maximum value is

S = 29 + 25 + 21 + … + 9 + 5 + 1

Reversing the order of terms gives the same sum,

S = 1 + 5 + 9 + … + 21 + 25 + 29

Adding terms in the same positions gives us twice this sum,

2S = (29 + 1) + (25 + 5) + (21 + 9) + … + (1 + 29)

Notice how each grouped sum adds to 30. There are 8 terms in the sum, since 4n + 1 = 29 when n = 8. So

2S = 8 × 30 = 240 ===> S = 120

5 0

3 years ago

In 2014, the percentage of the U.S population who was foreign-born was 13.1. Choose 60 U.S residents at random. Find the mean, v

makkiz [27]

Answer:

Hence Mean ,variance ,standard deviation who are foreign born are as

8, 6.83 ,2.613 respectively

Step-by-step explanation:

Given:

probability of success for foreign-born is 13.1 % p=0.131

probability of failure= q=1-0.131=0.869

n=60

To Find:

Mean ,variance and standard deviation

Solution:

We have here binomial distribution as probability for success (p)and number of trails are given (n).

So we know that formula for mean ,variance and standard deviation of binomial distribution are as follows ,

p=0.131

q=0.869

n=60

So Mean=μ= n*p

=60*0.131

=7.86

Hence mean will be 7.86 which approximately 8 persons.

Now for Variance=n*p*q

=60*0.131*0.869

=6.830

So variance will be 6.83

And for Standard deviation=Sqrt(variance)=Sqrt(n*p*q)

=Sqrt(6.83)

=2.613

Hence Mean ,variance ,standard deviation who are foreign born are as

8, 6.83 ,2.613 respectively.

7 0

3 years ago

Solve the in quality x plus 1<7

RUDIKE [14]

Answer:

x<6

Step-by-step explanation:

x+1 < 7

Subtract 1 from each side

x+1-1<7-1

x <6

7 0

3 years ago

If you have $15 and you need $75 how much more do you need?

Arisa [49]

So you subtract 75 from 15 and you will get the difference and the answer is 60

5 0

3 years ago