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slamgirl [31]
3 years ago
15

Have the conditions for inference been met?

Mathematics
1 answer:
alekssr [168]3 years ago
5 0

Answer: the answer is A

Step-by-step explanation: because the original question does not state that the swimmer “randomly selected” the members. It only says the swimmer “selects” 10 members. Therefore, it is A (The sample is not random)

youre welcome

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The news reported that inflation will rise
statuscvo [17]

Answer:

  $1,500

Step-by-step explanation:

A 2.5% increase in the $60,000 average family income would be required:

  0.025 × $60,000 = $1,500

Your annual income would have to increase by $1,500.

4 0
3 years ago
A wallet contains $460 in $5, $10, and $20 bills. The number of $5 bills exceeds twice the number of $10 bills by 4, and the num
Butoxors [25]

Answer:

Number of $5 bills = 32

Number of $10 bills = 14

Number of $20 bills = 8

Step-by-step explanation:

Let x number of $5, y number of $10 and z number of $20

The number of $5 bills exceeds twice the number of $10 bills by 4.

Therefore, x = 2y + 4

The number of $20 bills is 6 fewer than the number of $10 bills.

Therefore, z = y - 6

A wallet contains $460 in $5, $10, and $20 bills.

Therefore,

5x + 10y + 20z = 460

Substitute x and y into equation

    5(2y+4) + 10y + 20(y-6) = 460

10y + 20 + 10y + 20y - 120 = 460

                           40y - 100 = 460

                                    40y = 460 + 100

                                    40y = 560

                                      y = 14

  • Put the value of y into x = 2y + 4 and solve for x

                                      x = 2(14) + 4

                                      x = 32

  • Put the value of y into z = y - 6 and solve for z

                                      z = 14 - 6

                                      z = 8

Hence, the each type of bills,

Number of $5 bills = 32

Number of $10 bills = 14

Number of $20 bills = 8

3 0
4 years ago
Read 2 more answers
Is the Answer A,B,C, or D?
Yuliya22 [10]
The answer is C. 4/5 I already gave you a explanation on why in your last question
3 0
3 years ago
Read 2 more answers
20 AND BRAINLIEST!
Alex17521 [72]

a triangle needs to have 180 degrees in all.

65 + 65 = 130

180 - 130 = 50

x = 50 degrees

5 0
3 years ago
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the luna family went to the children's festival Friday and Saturday last weekend.the entry fees was 2.75 per person each day.if
Zinaida [17]

Answer:66

Step-by-step explanation:

2.75•12=33 33•2=66

4 0
4 years ago
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