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3 years ago

How did they get this

Mathematics

2 answers:

alexandr1967 [171]3 years ago

7 0

It's only true if x=2 and y= -1 .

katrin2010 [14]3 years ago

3 0

Somewhere in the text, it must say that x = 2 and y = -1 or else, the values just seem made up out of thin air.

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Someone help please 20 points

Marina86 [1]

Answer:

Step-by-step explanation:

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3 years ago

1 /x^−1 in simplest rational form

Allushta [10]

Here is a link to help you find the answer:
https://www.khanacademy.org/math/algebra2/rational-expressions-equations-and-functions/simplify-rati...

Hope this helps!

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3 years ago

Sheila has 12 1/2 pounds of potato salad. She wants to divide the potato salad into containers, each of which holds 2 1/4 pounds

NeX [460]

Answer:

6 containers needed

Step-by-step explanation:

Given

$Total = 12\frac{1}{2}\ lb$ ----- Size

$Container = 2\frac{1}{4}\ lb$ ----- Size

Required

Determine the number of containers needed

This question illustrates the knowledge of fraction and division.

To get the number of containers needed, we simply divide the total size by the size of the container as follows;

$Number = Total/Container$

$Number = 12\frac{1}{2}/2\frac{1}{4}$

Convert to improper fractions

$Number = \frac{25}{2}/\frac{9}{4}$

$Number = \frac{25}{2}*\frac{4}{9}$

$Number = \frac{100}{18}$

$Number = 5.5555556$

$Number = 6$ --- Approximated

4 0

3 years ago

The tail on Alex's dog is 5 1/4 inches long. This length is between which two inch marks on a ruler

Andrei [34K]

5 and 6 because 5 1/4 = 5.25.
5.25 is less than 6, but greater than 5.

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3 years ago

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The two lines

Andreas93 [3]

Answer:

yewhuh

Step-by-step explanation:

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3 years ago