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polet [3.4K]
3 years ago
13

What is an easy way to add a subtract rationals?

Mathematics
1 answer:
Nadya [2.5K]3 years ago
8 0
If the two rational expressions that you want to add or subtract have the same denominator you just add/subtract the numerators which each other. When the denominators are not the same in all expressions that you want to add or subtract as in the example below you have to find a common denominator.
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Calculate the account balance for $800 left on deposit for 255 days earning 5.25% compounded daily.
Svetradugi [14.3K]
The value would be 829.89.

The formula we use is 

A=p(1+\frac{r}{n})^{nt},

where A is the total amount, p is the principal, r is the rate expressed as a decimal number, n is the number of times per year the interest is compounded, and t is the number of years. 

We will use 800 for p; 5.25/100 = 0.0525 for r; 365 for n; and (255/365) for t (since it is not a full year):
A=800(1+\frac{0.0525}{365})^{\frac{255}{365}\times365}
\\
\\=800(1+\frac{0.0525}{365})^{255}=829.89
3 0
3 years ago
If three times a number is increased by 4, the results is -8. find the number
skad [1K]

Answer: -4

Step-by-step explanation:

3x + 4 = -8

3x= -12

x = -4

<!> Brainliest is appreciated! <!>

6 0
3 years ago
Read 2 more answers
Hi please help me answer this!!
just olya [345]

The numbers that are irrational are B. √72 and D.√23.

<h3>What are irrational numbers?</h3>

Irrational numbers are those that have infinite numbers after the decimal. These numbers are also none repeating.

When the above are solved:

√25 = 5

√144 = 12

√23 = 4.79583152331...

√72 = 8.48528137424...

The only two numbers with non-repeating and infinite numbers are √72 and √23.

Find out more on irrational numbers at brainly.com/question/20400557

#SPJ1

7 0
1 year ago
K<br> The solution is k<br> K/6+5=17<br> The solution is k=
aleksklad [387]

k=72

Explanation:

72/6=12

12+5=17

3 0
2 years ago
Read 2 more answers
(PLEASE HELP) Triangle LMN is similar to triangle OPR. Find the measure of side RO. Round your answer to the nearest tenth if ne
AysviL [449]

Answer:

<h3>RO = 107.36</h3>

<u>Step</u>-<u>by</u>-<u>step</u> <u>explanation</u>:

ΔLMN = ΔOPR ----- (<em>given</em>)

<h3>so,-----------------------</h3>

NM / NL = RP / RO

19 / 34 = 60 / RO

RO = 60 × 34 ÷ 19

RO = 107.36

6 0
2 years ago
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