Fourty and eight tenths as a decimals is 40.8. More than one pounds behind decimal is too much and a different number other than 8 is wrong. The answer is B: 40.8.
Answer:
Min 42 dinners
Step-by-step explanation:
The ratio is the following:
C : 7
B : 5
F : 2
That means that every 2 fish dinners, they served 5 beefs and 7 chickens.
If they served more than 5 fish dinners, that means at least 6 fish dinners.
And by proportion,
X= (6*5)/2= 15 BEEF
X= (15*7)/5= 21 CHICKEN
ADDING: 21+15+6= 42
<em>So the minimum amount of dinners served was 42.</em>
The number of pairs of shoes each man can repair is its velocity time the time.
Call x the repair velocity of the assistant. Then, the repair velocity of the repairman is 2x.
So, the number of pairs of shoes that the assitant can repair in an 8 hour day is: x*8 = 8x
And the number of pairs of shoes that the repairman can fix in an 8 hour day is: 2x* 8 = 16x
As per the statement, 16x + 8x = 16
=> 24x = 16 => x = 16/24 = 2/3 of shoes in 8 hours.
That is the speed of the assistant, while the speed of the repairman is twice that = 4/3 in 8 hours.
So, divide 8 by 4/3 to determine the time to repair one shoe:
8 / ( 4/3) = 3 * 8 / 4 = 3 *2 = 6. That, is the repairman will take 6 hours to repair a pair of shoes.
Answer: 6 hours
The answer would be 94.2
The reason why this is the answer is because the equation to calculate the radius of the circle is 2 x <span>π x radius. So if you put 2 x 3.14 x 15 then you will get the answer 94.2 as the circumference.</span>