We write f(x) in terms of y I.e y=7x-1/2.
Fractions are sometimes ambiguous, we eliminate the fraction by multiplaying the entire function by 2.so as to get 2y=14x-1.
Make x the subject, x=2y+1/14,
Thus the inverse f(x)=2x+1/14
1.
25%
.3 + .2 + .15 + .1 = .75
1.00 - .75 = .25
2.
120 students
There are 400 total students
.3 * 400 = 120
4.
tennis-
.1 * 400 = 40 students prefer tennis
football-
.25 * 400 = 100 students prefer football
140 students like football/tennis
5.
400 students
There are four quarters in a whole
.25% = 100
100 * 4 = 400
Answer:
it is C
Step-by-step explanation:
why because look at the numbers and youll understand
Interest is always way more than the principal. The answer is 352.80
Answer:
B. 6x - 12y + 10x
Step-by-step explanation:
A: expression equals 10x - 12y, doesn't equal step 2
B: expression equals 16x - 12y, is the same as step 2
C: expression equals 16x - 30y, doesn't equal step 2
D: expression equals 25x - 30y, doesn't equal step 2
