These are the steps and the answer
A) let h = number of half page ads and f = number of full page ads
40h + 75f = 800. Assuming budget is fully spent
h + f = 13
B) 75h + 75f = 975 (multiplying the second equation by 75)
35h = 175 (subtracting the first equation)
h = 5
Michael purchases 5 half page adverts
C) 5 + f = 13 (Substituting for h in second equation)
f = 8
Michael purchases 8 full page adverts
Answer:
1/2, 2/4,& 3/6
Step-by-step explanation:
Well, two-twelfths plus four-twelfths is equal to size-twelfths which is equal to one half. Using this we can figure out which other fractions are equal to one half and answer the problem.
Answer:
1) D
2) D
3) C
4) B
5) C
6) A
7) C
Step-by-step explanation:
1) A polynomial contains integral positive degrees of x .
Though 5 does not contain x, we can take as x power 0
But 3^(1/2)+5 contains no x term, and an irrational term.
Hence option D
2) Grouping like terms and write in descending powers of x we get
d. 9x^3-x^2-x-4 is right answer
3) [4x^2-4x+5] - [3x^2-6x+2] = [4x^2-4x+5] - 3x^2+6x-2
= X^2+2x+3
So option c
4) By multiplication we get product as
B. 10x^2-7x-12
5) Rectangle area = length x width = (2h-1) (4h+3)
= 8h^2+2h-3
Option C
6) Take common factor b outside
Answer is a. 3b (2b^2+3b-4)
7) Use the identity a^2-b^2
C. (2x+5)(2x-5) is answer