If Jim drives 25miles/hr and he is 30 miles away you would need to solve for the number of hours it would take to get there. So, you can set up a proportion: 25miles/1hr=30miles/xhr cross multiply to get 25x=30 divide both sides by 25 and your answer is 1.2 hours.
Answer:
y = 2
Step-by-step explanation:
given the 2 equations
5x - 3y = - 11 → (1)
2x - 6y = - 14 → (2)
multiply (1) by - 2, to eliminate the term in y
- 10x + 6y = 22 → (3)
add (2) and (3) term by term
(2x - 10x) + (- 6y + 6y) = (- 14 + 22)
- 8x = 8 ( divide both sides by - 8 )
x = - 1
substitute x = - 1 into either (1) or (2) and solve for y
(1) : - 5 - 3y = - 11 ( add 5 to both sides )
- 3y = - 6 ( divide both sides by - 3 )
y = 2
solution is (- 1, 2 )
Answer:
A. 5+3=3+5
Step-by-step explanation:
The commutative property of addition says that changing the order of numbers does not change the sum. In this case, they both equal 8 even though the numbers are switched.
Answer:
Step-by-step explanation:
The following piecewise functions are linear functions. The graph of any of them is a line segment.
We just need to calculate the value of the function at each end specified in the brace.
Substitute x =-1 and x = 0:
Range of this piece is [-5; -2)
Substitute x =0and x = 5:
Range of this piece is [3; 13)
Therefore the range of the following piecewise function is:
Look at the picture.