All categories

2 years ago

Help........ Again and thanks

Mathematics

1 answer:

Hunter-Best [27]2 years ago

5 0

Answer:

x=3, y=1

Step-by-step explanation:

2x+y =7

3x-4y =5

Multiply the first equation by 4 so we can eliminate y

4(2x+y =7)

8x +4y =28

Add this to the second equation

8x +4y =28

3x-4y =5

----------------

11x = 33

Divide by 11

11x/11=33/11

x=3

Now we still need to find y

2x+y=7

2(3)+y =7

6+y=7

Subtract 6 from each side

6-6+y=7-6

y= 1

You might be interested in

Simplify.

aleksklad [387]

618 hope this helps you have an amazing week

4 0

2 years ago

The box plot represents this data set.

Dennis_Churaev [7]

A represents the extreme minimum value of the set of data points : therefor the answer would be 17

7 0

2 years ago

Read 2 more answers

An employer uses the linear regression equation mc024-1.jpg to predict the weekly salary, y, of an employee who sells x dollars

jolli1 [7]

Answer:

Alex earned about $60 more than Joaquin did.

Step-by-step explanation:

5 0

3 years ago

Identify the function type that best models the data.

SVETLANKA909090 [29]

The answer is 42,8,6 that it the right answer

8 0

3 years ago

Reese went cycling in the morning .The ratio of her distance in miles to the length of time in minutes was 15:60 tease concluded

rodikova [14]

Answer:

No, she is not correct as her speed is 0.25 miles per minute.

Step-by-step explanation:

Given:

Ratio of distance to time taken is 15 : 60.

Distance is in miles and length of time is in minutes.

We know that, average speed is given as the ratio of the distance traveled and the length of the time taken.

So, the ratio above is nothing but the average speed of Reese for cycling.

Thus, average speed of Reese is given as:

$\textrm{Average speed}=\frac{Distance}{Time}\\\\\textrm{Average speed}=\frac{15}{60}\ miles\ per\ min\\\\\textrm{Average speed}=\frac{1}{4} = 0.25\ miles\ per\ min$

Therefore, the average speed of Reese is 0.25 miles per minute which is not equal to the one mentioned by Reese as 4 miles per minute.

So, Reese conclusion of her average speed is incorrect. It's not 4 but the reciprocal of 4 which is 0.25 miles per minute.

7 0

3 years ago