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3 years ago

4X-y=6 3X+2y=21 Commomn core

Mathematics

1 answer:

Alex73 [517]3 years ago

3 0

Assuming you need to find the solution, it's x=3 and y=6
I used elimination

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Please help and explain process too. Thank you!!

sergey [27]

The answer is x^2+2x-5

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2 years ago

Does the graph represent y as a function of x?

Dimas [21]

Answer:

yes

Step-by-step explanation: i think cause the line is crossing both of the x and y axis

6 0

3 years ago

The fare for a taxi cab is $2.50 per passenger and $0.75 for each mile. A group of friends has $22.00

xeze [42]

For this case we have to:

x: Let the variable representing the number of people to travel in the group

y: Let the variable representing the number of miles traveled.

If friends only have $22 then we have the following inequality:

$2.50x + 0.75y \leq22$

Now, if there are three people in the group we have that $x = 3.$

$2.50 (3) + 0.75y \leq22\\7.5 + 0.75y \leq22\\0.75y \leq22-7.5\\0.75y \leq14.5\\y\leq \frac {14.5} {0.75}\\y\leq19.33$

The taxi can travel a maximum of 19.33 miles.

On the other hand, if the group wants to travel 10 miles then we have to y = 10.

$2.50x + 0.75 (10) \leq22\\2.50x + 7.5 \leq22\\2.50x \leq22-7.5\\2.50x \leq14.5\\x\leq \frac {14.5} {2.50}\\x \leq5.8$

Thus, they could travel a maximum of 5 people.

ANswer:

$2.50x + 0.75y \leq22$

Traveling 3 people, the taxi can travel a maximum of 19.33 miles

Traveling 10 miles, a maximum of 5 people can travel

7 0

3 years ago

You put 5000 and a bank account that will give you 2% interest on the money in the account every year how much money will be in

ANEK [815]

Answer:

$7,429 I think (it has to be 20 characters ignore this part)

8 0

3 years ago

N-4n=-9+6n<br> A) (-9)<br> B) (1)<br> C) (All real numbers. }<br> D) (14)

xeze [42]

The answer is B I hope you get it.

6 0

3 years ago