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3 years ago

Please help meee, 25 points asap it's timed!!!!

Mathematics

1 answer:

____ [38]3 years ago

3 0

I believe this is -5, hope it helped

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Answer:

A perfect score on a test

Step-by-step explanation:

Since the score gets subtracted for each wrong answer, if x=0 then then nothing would get taken away from the initial 80

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3 years ago

If y=3 then 14y equals

nadezda [96]

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14(3)

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What is an equation of the line that passes through the point (3,-1) and is parallel to the line 5x+3y=6

777dan777 [17]

Answer:

$y=-\frac{5}{3} x+4$

Step-by-step explanation:

Since the line we are trying to study is parallel to the one given by the standard equation 5x + 3y = 6, it needs to have the same slope as this given line has. Let's write then this equation in slope-intercept so we can find what the slope is :

$5x+3y=6\\3y=-5x+6\\y=-\frac{5}{3} x+\frac{6}{3} \\y=-\frac{5}{3} x+2$

Then the slope of our line must also be "-5/3" in order to be parallel to the given line.

Now, since we also know a point (3, -1) through which the new line should go, we use the point-slope form of a line:

$y-y_0=m(x-x_0)\\y-(-1)=-\frac{5}{3} (x-3)\\y+1=-\frac{5}{3} x+5\\y=-\frac{5}{3} x+4$

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3 years ago

Lester deposits $80 into a new savings account. The account earns 6.5% simple interest per year. No money is added or removed fr

Sedaia [141]

$~~~~~~ \textit{Simple Interest Earned Amount} \\\\ A=P(1+rt)\qquad \begin{cases} A=\textit{accumulated amount}\\ P=\textit{original amount deposited}\dotfill & \$80\\ r=rate\to 6.5\%\to \frac{6.5}{100}\dotfill &0.065\\ t=years\dotfill &3 \end{cases} \\\\\\ A=80[1+(0.065)(3)]\implies A=80(1.195)\implies A=95.6$

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2 years ago