Answer:
13
Step-by-step explanation:
i solved it for you
your welcome :)
<em>7)</em> they give you the variable of Y
y= -3x
plug that y into the first equation
-3x + -3x = 30
add the two terms since they're like terms
-6x = 30
to find x you need to divide 30 by -6
x = -5
<em>8) </em>it s A
$8.50 per hour is the same as 8.50x and plus the commission. I guess D can be correct but I think they want to keep it in order since they gave Greg's equation first then Kevin's
<em>9) </em>same thing the y is given to you. Plus in that to the first equation. cobine like terms and find X
Answer:
It will take ≈5 hours (5.278)
Step-by-step explanation:
First we need to find how many number she counts in one hour. We know she counts 60 every one minute and there are 60 minutes in an hour. 60x60=3600
Now we divide 19,000 by 3600 to find how many hours it will take
19000/3600=5.278
It will take ≈5 hours (5.278)