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yawa3891 [41]
3 years ago
11

Schadek Silkscreen Printing Inc. purchases plastic cups and imprints them with logos for sporting events, proms, birthdays, and

other special occasions. Zack Schadek, the owner, received a large shipment this morning. To ensure the quality of the shipment, he selected a random sample of 300 cups and inspected them for defects. He found 15 to be defective. What is the estimated proportion defective in the population?
Mathematics
1 answer:
ehidna [41]3 years ago
6 0

Answer: 0.05

Step-by-step explanation:

Given : To ensure the quality of the shipment, he selected a random sample of 300 cups and inspected them for defects. He found 15 to be defective.

i.e. sample size : n= 300

sample proportion : \hat{p}=\dfrac{15}{300}=0.05

The best estimate for population proportion is the sample proportion.

Therefore, the estimated proportion defective in the population : 0.05

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The measure of an angle is 32.9°. What is the measure of its complementary angle?
zubka84 [21]

Answer: 57.1

Step-by-step explanation: To be complementary the angles have to add up to make a sum of 90.

90 - 32.9 = 57.1

The angles are 32.9 and 57.1.

8 0
3 years ago
A truck can be rented from Company A for ​$70 a day plus ​$0.50 per mile. Company B charges ​$20 a day plus ​$0.60 per mile to r
r-ruslan [8.4K]

Answer:

The rental cost for Company A and Company B will be the same after 500 miles

Step-by-step explanation:

The total cost of renting a truck from Company A can be expressed as;

Total rental cost(Company A)=Cost per day+Total rate

where;

Cost per day=70

Total rate=rate per mile×number of miles (m)=(0.5×m)=0.5 m

replacing;

Total rental cost(Company A)=70+0.5 m...equation 1

2. The total cost of renting a truck from Company B can be expressed as;

Total rental cost(Company B)=Cost per day+Total rate

where;

Cost per day=20

Total rate=rate per mile×number of miles (m)=(0.6×m)=0.6 m

replacing;

Total rental cost(Company B)=20+0.6 m...equation 2

Equating equation 1 to equation 2

70+0.5 m=20+0.6 m

0.6 m-0.5 m=70-20

0.1 m=50

m=50/0.1

m=500 miles

The rental cost for Company A and Company B will be the same after 500 miles

7 0
3 years ago
The surface area of yringaler prism​
Trava [24]

Answer:

180 cm

Step-by-step explanation:

2(3*10) = 60

3*12 = 24

1/2(12*8) * 2 = 96

formula for a triangle is 1/2 b h

7 0
3 years ago
To which real number sets does the number 13 belong?
Crazy boy [7]
13 is a whole number, integer, natural number and rational number. Rational number because it can be written as a fraction like 13/1. It is a whole number because it doesn't have any decimals. It is an integer because an integer is a positive or negative whole number and it is a natural number because a natural number is any positive number greater than 0.
3 0
3 years ago
35%Daisy is cooking pasta. The recipe says she needs 480 grams of pasta for 4 people. How many kilograms will she need for 14
pav-90 [236]

4 people = 480 grams of pasta


1 person = 480 ÷ 4 = 120 grams of pasta


14 people = 120 x 14 = 1680 grams of pasta


1680g = 1680 ÷ 1000 = 1.68 kg


Answer: 1.68 kg of pasta

4 0
3 years ago
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