Well basically if they lost 8 points and gained 6, they have -2 points.
Answer:
![\frac{16}{195}](https://tex.z-dn.net/?f=%5Cfrac%7B16%7D%7B195%7D)
Step-by-step explanation:
To obtain the result of a fractions multiplication we need to multiply both numerators and the divide by the multiplication of the denomitators. In general, given a,b,c,d real numbers with b and d not zero, we have that
![\frac{a}{b}*\frac{c}{d}=\frac{a*c}{b*d}](https://tex.z-dn.net/?f=%5Cfrac%7Ba%7D%7Bb%7D%2A%5Cfrac%7Bc%7D%7Bd%7D%3D%5Cfrac%7Ba%2Ac%7D%7Bb%2Ad%7D)
Substituting a,b,c and d for 8,15,2 and 13 we obtain that
![\frac{8}{15}* \frac{2}{13} =\frac{16}{195}](https://tex.z-dn.net/?f=%5Cfrac%7B8%7D%7B15%7D%2A%20%5Cfrac%7B2%7D%7B13%7D%20%3D%5Cfrac%7B16%7D%7B195%7D)
Answer:
25 minutes
Step-by-step explanation:
First you subtract the original amount on the card from the remaining amount left.
So you can get the amount of money spent on that call.
$15 - $13.50 = $1.50
Then you divide that number by how much it cost per minute.
$1.50 ÷ 6 = 0.25
Then you get your answer!
She was on the phone for 25 minutes
My estimated answer for 1 is x=1.59 or x=-1.26 and my exact answer is (in word form) x= 1 plus or minus the square root of 73 over 6. my estimated answer for 2 is x=-0.34 or x=1.74 and my exact answer (in word form) is x= -7 plus or minus the square root of 109 over -10. I took a picture of my work and hopefully you can read it
20%, because 20/100 is equal to 20&.
Hope this helps!