"The petrol consumption of your boat is 15 litres per 100kms. Let d be the distance you travel in kilometres and p the price of petrol in rand per litre. Anexpression for the number of litres of petrol you need to travel d kilometres is"
I think the answer will be
<span>
P=15*(100d)</span>
Answer:
C. 6m
Step-by-step explanation:
The formula for the volume of a cone: V = πr²h/3
Use this formula to solve for the height (isolate h).
226 = (3.14)(6)²h/3 (Given)
226 = (3.14)(36)h/3 (Squared 6)
226 = 113.04h/3 (Multiplied like terms)
678 = 113.04h (Multiplied 3 on both sides)
h = 5.997876858 ≈ 6 (Divided 113.04 on both sides)
Answer:
15 oz
Step-by-step explanation:
425/28.3 = 15.02 oz or 15 oz
Answer: 2s + 1
Explanation:
1) Given expression: 6s² - 7s- 5 = (3s - 5) ( )
2) The missing factor ( ) is such that when it is multiplied by (3s - 5) the product is 6s² - 7s- 5.
3) Since the first term of the first factor starts with 3s, the first term of the second factor shall be 2s (since they have to yield 6s²). Then, you can write:
6s² - 7s- 5 = (3s - 5) (2s + )
4) The second term of the missing factor is positive because the product (+)(-) = (-) which is the sign of the third term of the polynomial.
5) The second term is such that when multiplied by - 5 is equal to the last term of the polynomial (also - 5), so this second terms is +1.
And you get: 6s² - 7s- 5 = (3s - 5) (2s + 1)
6) You can expand, using distributive property to confirm the result:
(3s - 5) (2s + 1 ) = (3s)(2s) + (3s)(1) - (5)(2s) -(5)(1) = 6s² - 7s- 5, which confirms the result.
