Equation 1: x + y = 40 ; therefore y = 40 - x
Equation 2: 25x + 15y = 900
Find x first:
25x + 15 (40 - x) = 900
25x + 600 - 15x = 900
10x = 900 - 600
x = 300÷10
x = 30 hours Chris needs to spend for tutoring job
y = 40 - 30
y = 10 hours Chris needs to spend for referencing job
Answer:
3(9a+8)
Step-by-step explanation:
have a nice day and week
Here where you label the y and slope
Answer:
hdwhdbehqj
Step-by-step explanation:
223499
3344rbjee
Answer:
<h3>x = 22.54</h3>
Step-by-step explanation:
Tangent θ = Opposite / Adjacent
tan(29) = 20/x
Cross multiply.
x = 20 / (tan(29))
x = 22.544284
