Answer:
1.29
Step-by-step explanation:
yvaires inversly as x
- y=k/x
- y=18/14
- y=1.285
- y=1.29
19. Answer: 3p^6
Working:
3p^4 x p^2 = 3p^6
(Formula: a^b x a^c = a^b+c)
20.Answer: 42z^8
7z^5 x 6z^3 = 42z^8
(Same formula as Q19)
7. Answer: a^-4 or 1/a^4
a^3 / a^7 = a^-4
(Formula: a^b / a^c = a^b-c)
8. Answer: j^-1 or 1/j
(Same as Q7)
9. Answer: 1
(Same as Q7)
(x^0 = 1)
10. Answer: k^-4
(Same as Q7)
11. Answer: 3x^3/4
(Same as Q7)
(9/12 = 3/4)
12. Answer: 2f^5
13. Answer: (y^8)/2
(Same as Q7)
(4 - (-4)) = (4 + 4)
14. Answer: 1/n^5
(negative power = 1/power)
Sorry got no more time sorry
Answer:
100 minutes
Step-by-step explanation:
Let x = # of minutes
Company A: y = 21 + .17x
Company B: y = 26 + .12x
Set the equations = to each other.
21 + .17x = 26 + .12x
.17x = 5 + .12x
.05x = 5
x = 100
To solve the problem, we can first change the denominator into the same:
3 1/3 - 1 2/9
= 3 (1×3)/(3×3) - 1 2/9
= 3 3/9 - 1 2/9
We can then proceed to carry deduction:
3 3/9 - 1 2/9
= 2 1/9
Therefore the answer is 2 1/9.