The answer is C. If you have a low energy level you are more likely to get sick
Answer:
11 hours she worked at the grocery store
Step-by-step explanation:
assuming,
the number of hours worked at tutoring = x
the number of hours worked at grocery store = y
which means,
the amount she made at tutoring = x* $15
the amount she made at grocery store = y*$9
we have 2 equations
<em>total number of hours</em>
1) x+y= 15
<em>total amount she earned</em>
2) x* $15+ y* $9= $159
From equation 1
x+y= 15
x=15-y
<em>we replace this x value in equation 2</em>
x* $15+ y* $9= $159
(15-y)* $15+ y* $9= $159
(15*15)- 15y+9y=159
225-6y=159
225-159=6y
66=6y
66/6=y
<u>11=y</u> <em>the number of hours she worked at grocery store. </em>
<em>we place y=11 in our derived x equation</em>
x=15-y
x=15-11
<u><em>x=4 </em></u><em>the number of hours she worked at tutoring. </em>
> -1 2/3 ÷ (-2 1/5)
> -1.66.. ÷ -2.2
> 0.75454...
Answer: 0.75
Try The 3rd one I know it’s right
Let's pick two points on the line, the
y-intercept, and the
x-intercept. These are the points at which x=0, and y=0.
When x=0:
![y=-3/5x+6 \\y=-3/5(0)+6 \\y=6](https://tex.z-dn.net/?f=y%3D-3%2F5x%2B6%0A%5C%5Cy%3D-3%2F5%280%29%2B6%0A%5C%5Cy%3D6)
So one point is
(0,6)When y=0:
![y=-3/5x+6 \\0=-3/5x+6 \\-6=-3/5x \\-30=-3x \\x=10](https://tex.z-dn.net/?f=y%3D-3%2F5x%2B6%0A%5C%5C0%3D-3%2F5x%2B6%0A%5C%5C-6%3D-3%2F5x%0A%5C%5C-30%3D-3x%0A%5C%5Cx%3D10)
So another point is
(10,0)
So mark the points
(0,6) and
(10,0) on a pair of axes, and draw a straight line between them, and past them to infinity. This is a graphing of the line y=-3/5 x + 6