Given the initial information, we can set up equations. The equation for Clare’s Cleaning Services is:
y = 15x + 20
The equation for Racioppo’s Room Cleaners is:
y = 25x
Let’s substitute 2 in for x:
y = 15(2) + 20
y = 30 + 20
y = 50
y = 25(2)
y = 50
After 2 hours, the cleaning services cost the same.
I tried answering this question but got it wrong. Please ignore this message D:
Answer:
a) and
Step-by-step explanation:
The idea for the solution of this equation is to find the value of c where both parts of the piecewise-defined function are the same. So we need to take the parts of the function and set them equal to each other, so we get:
and then solve for x. We move everything to one side of the equation so we get:
and we use the quadratic formula:
and we substitute:
and solve
so our two answers are:
a) and
Answer:
Step-by-step explanation:
let f(x)=y
y=2x+5
flip x and y
x=2y+5
2y=x-5
y=(x-5)/2
f^{_1}(x)=(x-5)/2
but f^{-1}(x)=1
so (x-5)/2=1
x-5=2
x=2+5=7
3 14/26 is the correct answer look for this app it's called FractionsClac+ it's a calculator for fractions