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Aleonysh [2.5K]
3 years ago
6

If b-a=c-b=d-c, what is d-b

Mathematics
1 answer:
Ber [7]3 years ago
3 0
I think it is d-b=c-a, I'm not really sure
You might be interested in
5 5/8 - 5 1/8 simplify .
uranmaximum [27]

Answer: 5 : 3 1/8 = 8 : 5

Step-by-step explanation:

Change values to whole numbers.

Convert any mixed numbers to fractions.

Convert 3 1/8

3 1/8 = 25/8

We now have:

5 : 3 1/8 = 5 : 25/8

Convert the whole number 5 to a fraction with 1 in the denominator.

We then have:

5 : 3 1/8 = 5/1 : 25/8

Convert fractions to integers by eliminating the denominators.

Our two fractions have unlike denominators so we find the Least Common Denominator and rewrite our fractions as necessary with the common denominator

LCD(5/1, 25/8) = 8

We now have:

5 : 3 1/8 = 40/8 : 25/8

Our two fractions now have like denominators so we can multiply both by 8 to eliminate the denominators.

We then have:

5 : 3 1/8 = 40 : 25

Try to reduce the ratio further with the greatest common factor (GCF).

The GCF of 40 and 25 is 5

Divide both terms by the GCF, 5:

40 ÷ 5 = 8

25 ÷ 5 = 5

The ratio 40 : 25 can be reduced to lowest terms by dividing both terms by the GCF = 5 :

40 : 25 = 8 : 5

4 0
2 years ago
Suppose that scores on a particular test are normally distributed with a mean of 110 and a standard deviation of 20. What is the
qaws [65]

Answer:

The minimum score needed to be in the top 2% of the scores on the test

is  n = 10,00,000

Step-by-step explanation:

<u><em>Step(i)</em></u>:-

Mean of the Population = 110

Standard deviation of the Population = 20

The estimated error = 2% = 0.02

<u><em>Step(ii)</em></u>:-

The estimated error is determined by

                        E = \frac{S.D}{\sqrt{n} }

                       0.02 = \frac{20}{\sqrt{n} }

               ⇒ \sqrt{n} = \frac{20}{0.02} = 1000

Squaring on both sides, we get

                   n = 10,00,000

The minimum score needed to be in the top 2% of the scores on the test

is  n = 10,00,000

8 0
2 years ago
Find the slope of the line y = 1/8x - 1.
konstantin123 [22]
The slope of the line is 1/8.

The slope is always attached to the x.

Hope this helps!!
6 0
3 years ago
Read 2 more answers
PLEASE HELP ASAP!!! I NEED CORRECT ANSWERS ONLY PLEASE!!! I NEED TO FINISH THESE QUESTIONS BEFORE MIDNIGHT TONIGHT.
Misha Larkins [42]

Yo sup??

we can solve this question by applying trigonometric ratios

cos59=CB/CD

CD=CB/cos59

=7.8

Hope this helps.

6 0
3 years ago
there were 230 leprechauns in school this year last year there were 175 leprechauns what is the percent change in the number of
Reptile [31]

Answer:

0.55%

Step-by-step explanation:

230÷100=2.30%

175÷100=1.75%

2.30-1.75=0.55%

I think ‍♂️

7 0
2 years ago
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