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iris [78.8K]
3 years ago
11

Krissy predicted that she would sell 65 sweaters. She actually sold 85 sweaters. What are the values of a and b in the table bel

ow? Percent Error Item Approximate value Exact value Error Absolute error Ratio Percent error Sweaters 65 85 a b a = negative 20; b = negative 20 a = negative 20; b = 20 a = 20; b = negative 20 a = 20; b = 20
Mathematics
2 answers:
Keith_Richards [23]3 years ago
7 0

Answer:

a = negative 20; b = 20

Step-by-step explanation:

Your Welcome;)

Zigmanuir [339]3 years ago
6 0

Answer:

The second on I think

Step-by-step explanation:

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Matthew made a scale model of the solar system for a science project. He created the planet Mercury with a diameter of 6 inches.
Ronch [10]

Answer:

3000

Step-by-step explanation:

I'm learning this right now too!

500×6in=3000

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3 years ago
Is 7 1/5 a whole number a integer or a rational number
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A RATIONAL NUMBER ! i hope i helped
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3 years ago
A library subscribes to two different weekly news magazines, each of which is supposed to arrive in Wednesday�s mail. In actuali
Softa [21]

Answer:

P(Y = 0) = 0.09

P(Y = 1) = 0.4

P(Y = 2) = 0.32

P(Y = 3) = 0.19

Step-by-step explanation:

Let the events be:

W = Wednesday

T = Thursday

F = Friday

S = Saturday

Their corresponding probabilities are

P(W) = 0.3\\P(T) = 0.4\\P(F) = 0.2\\P(S) = 0.1

Since Y = number of days beyond Wednesday that it takes for both magazines to arrive(so possible Y values are 0, 1, 2 or 3)

The possible number of outcomes are therefore 4^2 = 16\\(W, W), (W, T), (W, F), (W, S)\\(T, W), (T, T), (T, F), (T, S)\\(F, W), (F, T), (F, F), (F, S)\\(S, W), (S, T), (S, F), (S, S)

The values associated for each of the outcomes are as follows:

Y(W, W) = 0, Y(W, T) = 1, Y(W, F) = 2, Y(W, S) = 3\\Y(T, W) = 1, Y(T, T) = 1, Y(T, F) = 2, Y(T, S) = 3\\Y(F, W) = 2, Y(F, T) = 2, Y(F, F) = 2, Y(F, S) = 3\\Y(S, W) = 3, Y(S, T) = 3, Y(S, F) = 3, Y(S, S) = 3

The probability mass function of Y is,

P(Y = 0) = 0.3(0.3) = 0.09\\P(Y = 1) = P[(W, T) or (T, W) or (T, T)]\\= [0.3(0.4) + 0.3(0.4) + 0.4(0.4)]\\= 0.4\\\\P(Y = 2) = P[(W, F) or (T, F) or (F, W) or (F, T) or (F, F)]\\= [0.3(0.2) + 0.4(0.2) + 0.2(0.3) + 0.2(0.4) + 0.2(0.2)]\\= 0.32\\\\P(Y = 3) = P[(W, S) or (T, S) or (F, S) or (S, W) or (S, T) or (S, F) or (S, S)]\\= [0.3(0.1) + 0.4(0.1) + 0.2(0.1) + 0.1(0.3) 0.1(0.4) + 0.1(0.2) + 0.1(0.1)]\\= 0.19

7 0
3 years ago
The budget for a new kitchen includes $3,000 for new kitchen equipment. The chef spent $90 of that money for new aprons. What pe
Rudik [331]
The answer is 3 percent of 3000
8 0
3 years ago
Nine more than the product of seven and three
spayn [35]

Answer:

30

Step-by-step explanation:

Product is the answer to a multiplication problem.

7x3=21

21 is the product.

21+9=30

30 is 9 more than 21.

7 0
3 years ago
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