Answer:
full page = 8
half page = 5
Step-by-step explanation:
two equations can be derived from the question
40x + 75y = 800 equation 1
x + y = 13 equation 2
x = number of half page advertisement
y = number of full page advertisement
multiply equation 2 by 40
40x + 40y = 520 equation 3
subtract equation 3 from 2
280 = 35y
y = 8
substitute for y in equation 2
x + 8 = 13
x = 13 - 8
x = 5
3.990 because the 3 is less than 5 so the number stays the same.
80=x+4x
80=5x
x=16
The two parts are 16 and 64
Answer:
z minus seven.
z took away from seven.
Step-by-step explanation:
(3-24) / (8+4)^2
it's written like this right?
(-12) / (12)^2
do the work in the parenthesis first
(-12) / (144)
then square 12
(-1) / 12
simplify by dividing the numerator and the denominator by 12
