Twice the sum of a number and 3
2 (x+3)
is the same
=
as 11 increased by the number
11 + x
so...
2 (x+3) = 11 + x
2x+6 = 11+x
2x-x = 11-6
x = 5
Answer:
Step-by-step explanation:
Answer:
If it's where they can get to the building I think it's 15
Step-by-step explanation:
Cause 10 plus 5 and if that can reach where they are able to get in I'd assume it would be 15
I'm not a genius or anything so don't rely on my answer
Answer:
Downwards, maximum
Step-by-step explanation:
In a <em>quadratic function </em>- one of the form 
where a, b, and c are all constant - the direction of the parabola is determined by <em>a. </em>If a is <em>positive</em>, the parabola opens upward - it has no maximum, since it shoots up infinitely in the positive y direction, but it does have a minimum; if you dropped a marble inside the parabola, it's the point where that marble would eventually rest. If a is <em>negative</em>, our parabola opens in the <em>negative</em> y direction, and the graph has a maximum. To use the marble analogy, the maximum is the one point where the marble won't roll off the sides of the graph.
Our function has a = -1, so it opens <em>downward</em> and has a <em>maximum point</em>.
Answer:
Total credit hours a student have = 2.5 hours.
Step-by-step explanation:
P.S - The exact question is -
Given - The tuition costs, C, for a local community college are modeled by C(h) = 250 + 200h, where h represents the number of credit hours taken. The local state university has tuition costs, S, modeled by the function S(h) = 300 + 180h.
To find - How many credit hours will a student have to take for the two tuition costs to be equal.
Proof -
If the two tuition cost are equal, then
C(h) = S(h)
⇒250 + 200h = 300 + 180h
⇒200h - 180h = 300 - 250
⇒20h = 50
⇒2h = 5
⇒h = 
⇒h = 2.5
∴ we get
Total credit hours a student have = 2.5 hours.
