Answer:
a) Total weekly cost = $300
b) For Cassey to break even she has to sell 4 baskets
Step-by-step explanation:
Cost of electricity and rent in a week = $200
Cost of ingredients to make one dessert basket = $2.50
Total cost of making 40 dessert basket= 40*25
= $100
a) Cassey total cost in a week is $200 + $100
= $300
b) if each basket is sold at $25,the total selling price of 40 baskets will be $(25*40)
= $1000.
For Cassey to break even with the cost of production she has to sell y basket.
y = cost of producing 25 baskets / cost of selling 1 basket
y = 100/25
y = 4 baskets
Answer:
52%
Step-by-step explanation:
13/25
13 ÷ 25
0.52
0.52 × 100/100
0.52 × 100%
(0.52 × 100)%
52%
Answer:
a) 8cm
b) 19.8cm
Step-by-step explanation:
The key to these types of questions is to keep proportions in mind.
To solve the first question, you want to find the proportion of the smaller triangle to the bigger triangle. The length of AE is 6cm, but the length of AD is (6+4) = 10cm. So the proportion of the bigger triangle to the smaller triangle is 10/6. So to find the lengths of the sides of the bigger triangle, we want to keep this number in mind.
The BE side is parallel to CD, so we have to use length of BE multiplied by the proportion in order to get the length of CD.
CD = 4.8 * (10/6) = 8
CD = 8cm
For the second question, you use the same concept to find all the other side lengths. The only one you need left for the shape EBCD is side BC. Do the same thing you did before, take the length of the side of the smaller triangle that corresponds with side AC on the bigger triangle. In this case, it's AB, which is 4.5cm. Multiply this by 10/6 to get AC.
AC = 4.5 * (10/6) = 7.5
AC = 7.5
But we're not done. We just found the length of AC, but we need the length of BC to calculate the perimeter. To do this, we want to take the length of AC - the length of AB.
7.5 - 4.5 = 3
So the length of BC is 3cm. Now, to find the perimeter, just add all the sides of EBCD together.
4.8 + 4 + 8 + 3 = 19.8cm.
Hope this helps.
The mean ( average ) is given as 1200 hours.
The standard deviation is 200, sample size is 100.
Find the standard error:
√(200^2 / 100) = 20
Now calculate the confidence interval. For 95% the Z number is 1.96
Multiply Z by the standard error:
1.96 x 20 =39.2
Now find the range that the mean should be within:
1200 - 39.2 = 1160.8
1200 + 39.2 = 1239.2
The samples should be between 1160.8 and 1239.2 for a 95% confidence interval.
Since the average was 1050, which is below 1160.8 the bulbs are not in compliance.
Answer:
The bottom answer
Step-by-step explanation:
