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Harman [31]
2 years ago
6

In her science classroom Jane noticed that the lengths (in inches) and the weights (in ounces) of the class's pet snakes were di

rectly related by the equation y = kx, where x is the length and y is the weight. Use the information in the table to find the weight of a snake that is 12 inches long.
A.25.0
B.27.5
C.30.0
D.32.5
Mathematics
2 answers:
ki77a [65]2 years ago
7 0
30.0 ounces is correct. Using any pairs of numbers in the table,plug into values for x and y and solve for k.
irakobra [83]2 years ago
3 0
Use one of the ordered pairs that are given to find the value of 'k', the CONSTANT of variation. This number will not change, hence the word 'constant'.
15 = k*6; dividing both sides by 6 we get k = 2.5; The equation used for the table is y = 2.5x
You can find any value now by using this formula.
y = 2.5*12
y = 30
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Decimal: 1.147 (rounded to the nearest thousandths).

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Solve each expression given, if it has the same result, then the expressions is equivalent. Solve the given expression:

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First, change all fractions into improper fractions:

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Next, find common denominators. Note that what you do to the denominator, you must do the numerator:

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