10 because 10x1 is 10 and 5x2 is 10 which is the lowest common denominator for both.
Answer:
(x - 7y)/(x + 3y)
Step-by-step explanation:
x² - 5xy - 14y²
x² - 7xy + 2xy - 14y²
x(x - 7y) + 2y(x - 7y)
(x - 7y)(x + 2y)
x² + 5x + 6y²
x² + 3xy + 2xy + 6y²
x(x + 3y) + 2y(x + 3y)
(x + 3y)(x + 2y)
[(x - 7y)(x + 2y)] ÷ [(x + 3y)(x + 2y)]
(x - 7y)/(x + 3y)
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
Since triangle ABC is a right triangle (90*), and angle ACB 45*, angle CAB must also equal 45*
Angles of triangle = 180=90+45+x
180=135+x
180-135=135-135+x
45=x