Answer:
D. X=-3, y=4
Step-by-step explanation:
-2x+3y=18 equation 1
x=-y+1 equation 2
-2(-y+1)+3y=18 replace x value of equation 2 into equation 1
2y-2+3y=18
5y=20
y=4
solve for x by replacing y value into either equation.
x=-y+1
x=-4+1
x=-3
Answer: At t=0.015 hours when the car 0.6 miles from the check point.
Step-by-step explanation:
Since we have given that
Distance traveled by him towards a speed check point = 1.4 miles
Speed at which he is travelling = 52 miles per hour
Let the time taken by him be x
Since we have the equation

where<em> </em><em>d</em><em> </em>denotes distance
and <em>t </em>denotes time.
If we have given that the car 0.6 miles from the check point.
So, we put the value of <em>d</em> in place of it .

So, at t=0.015 hours when the car 0.6 miles from the check point.
If you work with real numbers then the square root of - 1 CANNOT be defined.
If you work with complex numbers then the square root of - 1 is equal to the imaginary unit(which is symbolized as i)
F(x) = 2x + 1
f(3) = 2(3) + 1 = 6 + 1 = 7
g(x) = 3x + 2
g(2) = 3(2) + 2 = 6 + 2 = 8
f(3) ÷ g(2) = ⅞
All you have to is subtract 35-7=28
and you get 28 chores left