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attashe74 [19]
3 years ago
12

Harry asked 27 of his classmates whether they prefer skiing or snowboarding. He used a calculator to compare the number of class

mates who said they prefer snowboarding to the total number he surveyed. the calculator shows the results 0.44444444
Part A: Write the number as a fraction
Part B: How many classmates preferred snowboarding
Mathematics
1 answer:
AnnZ [28]3 years ago
3 0

Answer:

Part A: 4/9

Part B: 12 students

Step-by-step explanation:

27 * 0.44444444 = 12 (this is the number of students who preferred snowboarding). So the fraction would be 12/27, which simplifies to 4/9.

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What is the predicted profit when the number of items made (x) is 2,500, and the number of stores stocking the product (x2) is 5
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Answer:

d. 75,595

Step-by-step explanation:

Given the estimated regression equation :

y=550 + 30x1 + 9x2

if number of items made (x) = 2500 ; number of stores stocking the product (x2) = 5

Predicted profit (y) will be :

Substitute the values x1 = 2500 and x2 = 5 into the estimated regression model:

y=550 + 30(2500) + 9(5)

y = 550 + 75000 + 45

y = 75595

Hence, the predicted profit will be 75,595

5 0
3 years ago
Can anybody help me with this?
Andrews [41]

\bf 7\times \cfrac{n}{4}>7\implies \cfrac{7n}{4}>7\implies \cfrac{n}{4}>\cfrac{7}{7}\implies \cfrac{n}{4}>1\implies n>4

whatever value "n" is, it must be greater than 4, cannot be 4 or less.

notice that simplifying inequalities is hardly any different than doing equalities, there's just one difference when using a negative factor.

\bf 7\times\cfrac{a}{b}=7\implies \cfrac{7a}{b}=7\implies \cfrac{a}{b}=\cfrac{7}{7}\implies \cfrac{a}{b}=1\implies a=b

whatever value "a" might be, it must be equal to "b".

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4 years ago
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Answer:

Step-by-step explanation:

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3 years ago
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Answer:

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Step-by-step explanation:

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The answer should be d. 719  
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