Evaluate t - u/v when t = -1, u = -3, and v = 1/2
I am VERY VERY unsure what the answer is. PLEASE HELP!!! I am stuck on this!!!
On test day, a teacher sharpens 19 pencils to lend out to his students. If n represents the number of pencils that the teacher lends out, which expression represents the number of pencils he has left?
A) 19 - n
B) 19 + n
C) n-19
D) 19n
*Please help!*
For the first one, substitute the numbers for the letters.
He has 19 pencils. He takes n away.
What do you think?
19 - n?
Correct.
To evaluate the expression t - u/v, substitute the given values for t, u, and v:
t = -1
u = -3
v = 1/2
Now, plug in these values:
-1 - (-3)/(1/2)
First, simplify the expression inside the parentheses:
-1 - (-3)/(1/2)
= -1 - (-6)
= -1 + 6
= 5
Therefore, the value of t - u/v when t = -1, u = -3, and v = 1/2 is 5.