Answer: 6/7
Step-by-step explanation: Since the Greatest common factor of 84 and 98 is 14, you divide both sides of 84/98 by 14 to get 6/7
Answer:
18 boys
Step-by-step explanation:
The Ratio of girls to boys is 4:3. To get the girls (ratio part 4) to 24 you would multiply some number times 4 to get to 24. since 6 can go into 24 four times, that means the girls multiplied by 6. Now the girls can't just multiply and not the boys, so the boys (ratio part 3) have to be multiplied by 6 as well. This means the first part of the ratio is 24 and the second part is 18. So the ratio is 24:18. the second part of the ratio shows boys, so there are 18 boys.
Answer:
71
Step-by-step explanation:
82 plus 27=109
180-109=71
Answer:
x^2 - 2x - 15 = 0.
Step-by-step explanation:
x^2 - 2x - 3 = 0
(x - 3)(x + 1) = 0
So alpha and beta are -1 and 3.
So the roots of the required equation are 2(-1)-1 and 2(3) - 1
= -3, 5.
So the equation is
(x - 5)(x + 3) = 0
-that is x^2 - 2x - 15 = 0