Answer:
2.66 days
Step-by-step explanation:
We know that a day has 24 hours, so if Roger sleeps 3/8 of a day that means that he sleeps 3/8 • 24 which equals to 9 hours.
Now we want to know how many days it takes Roger to sleep an equivalent of a day if he sleeps 9 hours a day. So:
24 h / 9 h = 2.66 days
Of course we can do it in an easier way, in fractions:
1 : 3/8 = 8/3
8/3 = 2.66 days
Answer:
12%
Step-by-step explanation:
So in the first year they sold 650 bicycles.
Second year 572.
To find percentage you'll gain the difference 650 - 572 = 78 bicycles. Divide the deficit with initial sales (650).
72/650 * 100 (as we r finding percentage).
Its should give you 12%.
Answer:
C
Step-by-step explanation:
She sells her bike for 104 dollars
She sells toys <u>for 68 dollars</u>
Total 172
The question is a bit ambiguous. There are 4 divisions. So I would assume that you need to divide 172 by 4. If you do that you get 43
I think that what they are getting at is the answer is C. There are 4 months shown. And 1 month would be 43 dollars. She has enough for 3 more months.
Answer:
The tree is 18ft tall
Explanation:
Shadow = Real
4ft = 6ft(man)
1ft = 1.5ft
Let tree = yft
12 = y
y = 12 × 1.5
= 18ft
(Correct me if i am wrong)
You could determine the quadratic approximation of the curve near 
which gives you a good estimate since the function is relatively monotone.
First calculate the second derivative,
Then write down the quadratic approximation,
That yields,
Of course this can be further simplified but its not obligatory.
Hope this helps.
