Answer:
Step-by-step explanation:
I would take 19hours/2weeks=9.5 hours a week than 9.5hours a week times 7 weeks equal 66.5 hours in 7 weeks
Answer 66.5 hours
Answer:
120
Step-by-step explanation:
The formula describes how many ways items can be chosen given total items. In this scenario, , and , thus:
This means that you can make 120 three-vegetable plates
Answer: You would divide by six from both sides to isolate the x and get your answer, hope this helps.
Step-by-step explanation:
Answer:
(-7,2)
Step-by-step explanation:
3x+8y=-5
-2x+2y=18
so first of all, you want either x or y to be the same for both equations <em>(it can be negative or positive but has to be the same number)</em>
to do that, we'll multiply them:
I'll do y because it is easier
(-2x+2y=18) 4
<u>-8x+8y=72</u>
<u>3x+8y=-5
</u>
the y's now match
let's subtract them because they're both positive
-8x - 3x = -11x
8y - 8y = 0
72 - (-5) = 77
so -11x = 77
which results to x = -7
now we need the y.
to do that, we simply plug in the x in any of the equations:
-2x+2y=18
-2 (-7) + 2y = 18
14 + 2y = 18
2y = 4
y = 2
so the answer is (-7,2) if you're looking for a point
26 is what percent of 45, and how do you solve it?
26/45 = x/100
(26/45)(100) = x