Answer:
![- \frac{71}{4}](https://tex.z-dn.net/?f=%20-%20%20%5Cfrac%7B71%7D%7B4%7D%20)
Step-by-step explanation:
![- 7 \frac{1}{10} \div \frac{2}{5}](https://tex.z-dn.net/?f=%20-%207%20%5Cfrac%7B1%7D%7B10%7D%20%20%20%5Cdiv%20%20%20%5Cfrac%7B2%7D%7B5%7D%20)
![= - \frac{71}{10} \times \frac{5}{2}](https://tex.z-dn.net/?f=%20%3D%20%20%20-%20%5Cfrac%7B71%7D%7B10%7D%20%20%5Ctimes%20%20%5Cfrac%7B5%7D%7B2%7D%20)
![= - \frac{71}{2} \times \frac{1}{2}](https://tex.z-dn.net/?f=%20%3D%20%20-%20%20%5Cfrac%7B71%7D%7B2%7D%20%20%5Ctimes%20%20%5Cfrac%7B1%7D%7B2%7D%20)
![= - \frac{71}{4}](https://tex.z-dn.net/?f=%20%3D%20%20-%20%20%5Cfrac%7B71%7D%7B4%7D%20)
Answer:
(7,12),(-12,-7)
Step-by-step explanation:
x^2 + y^2 = 193
x - y = - 5
x = y - 5
(y - 5)^2 + y^2 = 193
y^2 - 10y + 25 + y^2 = 193
2y^2 - 10y + 25 = 193
2y^2 - 10y + 25 - 193 = 0
2y^2 - 10y - 168 = 0
2*(y^2 - 5y - 84) = 0 This factors into
2*( y - 12) (y + 7) = 0
y = 12
in which case x = 12 - 5 = 7
y = - 7
in which case x = -7 - 5 = - 12
Learn this...it helps
HOY = horizontal line, 0 slope, represented by x = a number
VUX = vertical line, undefined slope, represented by x = a number
undefined slope -- so its a vertical line
(5,-8)...remember, vertical lines are represented by x = a number....so we can say x = (now, what is the number for x in ur set of points ? it is 5...so ur equation is x = 5. it does not matter what value y is, x is ALWAYS gonna be 5
His hourly rate is $13.75.
Let x be the hourly rate. Since he works 20 hours that week, the hourly wages are given by 20x. We add to that his commission, which is 16% of the $1500 in sales, or 0.16(1500). This totals to 515:
20x + 0.16(1500) = 515
20x + 240 = 515
Subtract 240 from both sides:
20x + 240 - 240 = 515 - 240
20x = 275
Divide both sides by 20:
20x/20 = 275/20
x = 13.75.
Answer:
2.8
Step-by-step explanation:
I hope this helps!