In order to solve this question we first have to break down the terms.
Sum = Adding
Times = Multiplying.
The question states "3 times the sum of a number n and 12 is 45". In written form, it would be the following:
3(12+n) = 45
To solve this you first divide both sides by three and you'd be left with the following:
(12+n) = 15.
Then subtract 12 from both sides. Leaving you with:
n = 3
Answer:
You can use Pythagoras theorem to calculate x:
12² + 14² = x²
144 + 196 = x²
x² = 340
x = √340 ≈ 18,44
Answer:
3/13
Step-by-step explanation:
ratio is another way to say fraction, so we have 21/91. This can be reduced if we divide by 7: 21/7 = 3, 91/7 = 13. Now we have 3/13. You can write it as 3:13 or 3/13.
246 degrees i think, 44+80= 124 then 360-124 which us 246. (i might have misunderstood the question)
