Answer:
645/28 hours
Step-by-step explanation:
In 1 hour, Kamina does 1/43 of the job.
Simon takes x hour to do the job alone.
In 1 hour, Simon does 1/x of the job.
Together, they do the job is 15 hours, so in 1 hour, they do 1/15 of the job.
1/43 + 1/x = 1/15
15x/(645x) + 645/(645x) = 43x/(645x)
15x + 645 = 43x
28x = 645
x = 645/28
Answer: T=4
1. (x+3)(x+1)
2. (m+4)(m+8)
3. (r-2)(r-1)
4. (x-5)(x-1)
5. (x-7)(x-3)
6. (x-11)(x-11)
7. (t-6)(t+2)
8. (p-8)(p-8)
9. (x-1)(x-9)
10. (x+5)(x+1)
11. (a+9)(a-1)
12. (y-8)(y+1)
13. (x-3)(x+1)
14. (y+13)(y+1)
15. (m+5)(m+4)
16. (x+10)(x+2)
17. (a-12)(a-2)
18. (y+9)(y+2)
19. xy(x+2+y) i think
20. ab(a-4+4b)
21. xy(x+6-7y)
we need the figure, where is it
Answer: subject?
It has reflectional symmetry with four lines of symmetry. It has no rotational symmetry It has point symmetry. It has rotational symmetry with an angle of rotation of 90°.
