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Daniel [21]
3 years ago
6

For which values of P and Q does the following equation have Infinity many solutions? P×+57=-75x+Q​

Mathematics
1 answer:
Semenov [28]3 years ago
7 0

earrange the equation by subtracting what is to the right of the equal sign from both sides of the equation :  

                    p*x+57-(-75*x+q)=0

In this type of equations, having more than one variable (unknown), you have to specify for which variable you want the equation solved.

Unless there is none then in that case there very well may be infinite solutions

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Find the simple interest earned in an account with $300 at 5% annual interest for 7 years.
Fiesta28 [93]

Option A

The simple interest earned is $ 105

<em><u>Solution:</u></em>

Given that, $300 at 5% annual interest for 7 years

Therefore,

Principal = $ 300

Rate of interest = 5 %

Number of years = 7

<em><u>The simple interest is given by formula:</u></em>

Simple\ Interest = \frac{p \times n \times r }{100}

Where,

p is the principal

r is the rate of interest

n is the number of years

<em><u>Substituting the values in formula,</u></em>

Simple\ Interest = \frac{300 \times 7 \times 5 }{100}\\\\Simple\ Interest = 3 \times 7 \times 5\\\\Simple\ Interest = 105

Thus simple interest earned is $ 105

8 0
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The handbook of chemistry and physics lists the density of a certain liquid to be 0.7988 g/mL. Taylor experimentally finds this
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Answer:

Yes

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0.7925 lies between these values.

however, are you certain that the question has 0.500 as the uncertainty not 0.050

6 0
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