3 years ago

How can you tell when an equation in one variable has infinitely many solutions or no solution?

1 answer:

6 0

Answer:

A system has infinitely many solutions when it is consistent and the number of variables is more than the number of nonzero rows in the rref of the matrix. For example if the rref is ��has solution set (4-3z, 5+2z, z) where z can be any real number.

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An 8-oz bottle of ketchup costs $1.39. If the unit rate stays the same, how much should a 14-oz bottle cost? $0.79 $2.43 $2.78 $

Thepotemich [5.8K]

To find the unit rate you do

$1.39/8 oz.=.17

Then, you multiply the unit rate by the ounces

.17 * 14 oz. = $2.43

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3 years ago

Is it c or its not??

Bingel [31]

Answer:

C) 0.9

Step-by-step explanation:

density = mass / volume

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4 years ago

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Brody makes $38,000 per year no matter how many hours he works. Shonda makes $18 per hour and works 40 hours per week. Which one

Ann [662]

Answer:

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Step-by-step explanation:

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2 years ago

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2818 people ferried to an island. If the ferry took 70 people in one trip, how many trips did the ferry make.

sasho [114]

Answer:

Step-by-step explanation:

Divide 2818 by 70 and it comes out to: 40.2571429 it is not 40 because their is still some left over so there will be 41 ferry's and one of them will not be a full ride!

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2 years ago

What is the least common multiple of 12 and 5

Ket [755]

Answer:

least common multiple (LCM) of 5 and 12 is 60

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3 years ago