Answer:
50% are boys
Step-by-step explanation:
Total number of kids: 18+15=33
Percent of boys: 15/33=0.4545 repeating
0.4545 rounded to tenth: 0.5
0.5 to percent: 50%
Answer:
I think the answer is C sorry if I'm wrong but hope I helped
Answer:
If solving for X. (didn't know if you were solving for X or Y.
x=2y-12
x=5y-15
Step-by-step explanation:
x-2y=-12
+2y on both sides
x=2y-12
x-5y=-15
+5y on both sides
x=5y-15
Answer:
B. No solution.
Step-by-step example
I will try to solve your system of equations.
3x−y=4;6x−2y=7
Step: Solve3x−y=4for y:
3x−y+−3x=4+−3x(Add -3x to both sides)
−y=−3x+4
−y
−1
=
−3x+4
−1
(Divide both sides by -1)
y=3x−4
Step: Substitute3x−4foryin6x−2y=7:
6x−2y=7
6x−2(3x−4)=7
8=7(Simplify both sides of the equation)
8+−8=7+−8(Add -8 to both sides)
0=−1
Therefore, there is no solution, and the lines are parallel.
So you work for 2 hours and each hour you get 7.50
So you do 2*7.50 = 15$
Then you do the windows
3 hours and every hour you earn 6.25
3*6.25=18.75$
Now you add them
15+18.75= 33.75$ but if you want an average then around 34$
