Answer:
<h2>v = 11</h2>
Step-by-step explanation:
Answer:
Step-by-step explanation:
2/3a + 2/5a - 3/4b - 7/4b + 12- 5
4/8a - 10/8b + 7
-- First ...
You know that the angles of a triangle always add up to exactly 180° .
So you know that the two missing angles add up to (180° - 101.7°) = 78.3° .
That's the amount you need to split up in the ratio of 10:19 .
-- The smaller angle will get 10 shares of it.
The larger angle will get 19 shares of it.
Together, they'll add up to 29 shares of 78.3° .
-- OK. So what size is each share ? It's 78.3°/29 = exactly 2.7° .
-- The smaller angle gets 10 shares = (10 x 2.7°) = 27° .
The larger angle gets 19 shares = (19 x 2.7°) = 51.3° .
Check:
-- 27/51.3 = 10/19 <== good
-- (27° + 51.3° + 101.7°) = 180° <== good yay !
13. 21
14. 9
15. 1
16. 100
17. 7
Answer:
<u>Wrong</u>
Step-by-step explanation:
Let cost of Albert's fuel be x.
<u>When cost of fuel rises by 10%</u> :
- x (1 + 10%)
- x (1 + 0.1)
- <u>1.1x</u>
<u />
<u>When consumption is reduced by 10%</u> :
- 1.1x (1 - 10%)
- 1.1x (1 - 0.1)
- 1.1x (0.9)
- <u>0.99x</u>
<u />
So clearly there is a 1% change in expenditure. Hence, Albert's claim is wrong.
