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evablogger [386]
3 years ago
11

Solve the system of equations for x using elimination. 3x-2y=8 2x+2y=7

Mathematics
1 answer:
jonny [76]3 years ago
5 0
Answer is: x=3

Add the two equations together to eliminate y from the system.
Then divide each term by 5 and simplify.
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Rectangle A has a length of 12 and width of 8. Rectangle B has a length of 15 and a width of 10.
navik [9.2K]

Answer:

rectangles are similar figures, thus if scaled copies of each other then the ratios of corresponding sides must be equal

compare ratios of lengths and widths

rectangles A and B

k =  =  ← ratio of lengths

k =  =  ← ratio of widths

scale factors are equivalent, hence rectangle A is a scaled copy of B

rectangles C and B

k =  =  ← ratio of lengths

k =  =  ← ratio of width

scale factors (k ) are not equal, hence C is not a scaled copy of B

rectangles A and C

k =  =  ← ratio of lengths

k =  ← ratio of widths

the scale factors are not equal hence A is not a scaled copy of C

Step-by-step explanation:

6 0
3 years ago
Solve this with an explantion i will say thanks
melamori03 [73]

Answer: x=5

Step-by-step explanation:

divide both sides by the numeric factor on the left side, then that will give the answer for x

6 0
2 years ago
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AnnyKZ [126]

Answer:

D. y = 12.5x + 15

Step-by-step explanation:

Using the values provided in the table, the only equation that would be valid would be the following...

y = 12.5x + 15

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y = 12.5(5) + 15

y = 62.5 + 15

y = 77.5

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The answer is 18,019 days.

Step-by-step explanation:

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Answer:

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