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3 years ago

7. Explain the difference between whole numbers and counting numbers.(2 marks)Your answer

1 answer:

3 0

Counting numbers is like the numbers 1,2,3,4,5 and so on they were numbers you were probably taught to count to like to count through 1-10 or whatever. Counting numbers mean to count since they do have the word counting in them.

Whole number just means a number with no fraction or intger also 1 - infinity

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Select the correct answer. Which graph represents this inequality? 3x+y<1

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3 years ago

A manufacturing machine has a 10% defect rate.If 4 items are chosen at random, what is the probability that at least one will ha

vagabundo [1.1K]

Solution

Step 1

$\begin{gathered} probability\text{ of defective p = 10\% = }\frac{10}{100}\text{ = 0.1} \\ \\ probability\text{ of not defective q = 1 - p = 1 - 0.1 = 0.9} \\ \end{gathered}$

Step2

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= 1 - the probability that noon will have a defect

Step 3

Use the binomial distribution

$\begin{gathered} =1\text{ - }^nC_rp^rq^{n-r} \\ n\text{ = 4, r = 0} \\ \\ =1-^4C_0(0.1)^0(0.9)^{4-0} \\ \\ =\text{ 1 - 1}\times1\times0.9\times0.9\times0.9\times0.9 \\ \\ =\text{ 0.344} \end{gathered}$

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2 years ago

Today's cafeteria specials at a high school in Westford are a deluxe turkey sandwich and a chef salad. During early lunch, the c

Alla [95]

Answer:

chef salads = $2

turkey sandwiches = $1

Step-by-step explanation:

two equations can be derived from the question

13t + 69c = 151 eqn 1

61t + 41c = 143 eqn 2

t = turkey sandwiches

c = chef salads

multiply equation 1 by 61 and equation 2 by 13

793t + 4209c = 9211 eqn 3

793t + 533c = 1859 eqn 4

subtract equation 4 from 3

7352 = 3676c

c =2

substitute for c in equation 1

13t + 69(2) = 151

13t + 138 = 151

13t = 151 - 138

13t = 13

t = 1

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3 years ago

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harina [27]

9/20

explanation:

7/10 - 1/4
14/20 - 5/20
14-5/20
9/20

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3 years ago

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7. Explain the difference between whole numbers and counting numbers.(2 marks)Your answer​

7. Explain the difference between whole numbers and counting numbers.(2 marks)Your answer