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3 years ago

Solve the system of linear equations by substitution. Check your solution.Numbers 10 and 14.

Mathematics

1 answer:

Studentka2010 [4]3 years ago

6 0

Answer:

10) x =2, y = -2

14) x = -3, y = 4

Step-by-step explanation:

Check attachment

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2 years ago

The length of a living room is 12 feet and its width is 1012 feet. The length of the room is being expanded by x feet. Choose an

Ivanshal [37]

Answer:

Option C. 10.5(12 + x) square feet

Option E. (126 + 10.5x) square feet

Step-by-step explanation:

step 1

Find the area of the original living room

we know that

The area of the original living room is equal to

$A=LW$

we have

$L=12\ ft\\W=10\frac{1}{2}\ ft=10.5\ ft$

substitute

$A=(12)(10.5)=126\ ft^2$

step 2

Find the new area of the living room

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The new area is

$A=10.5(12+x)\ ft^2$

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3 years ago

A dog walks at a speed of 3mi/hr for 2 hours. How far (distance) did the dog walk? *

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Answer:

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Step-by-step explanation:

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2 years ago

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Answer:

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Step-by-step explanation:

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Solve the system of linear equations by substitution. Check your solution.Numbers 10 and 14.​

Solve the system of linear equations by substitution. Check your solution.Numbers 10 and 14.