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3 years ago

Which ordered pair is the solution to the system

Mathematics

1 answer:

svetoff [14.1K]3 years ago

6 0

Answer:

2 ordered pairs are solutions:

(1, -11) and (3, -9)

Step-by-step explanation:

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Marizza181 [45]

Answer:

325 miles

Step-by-step explanation:

Given that,

A car travels 390 miles in 6 hours.

We need to find the distance travelled in 5 hours.

6 hours = 390 miles

1 hour = 65 miles

In 5 hours,

5 hours = (65×5) miles

= 325 miles

So, it will travel 325 miles in 5 hours.

3 0

2 years ago

Solve: <br>x + y = 7<br>3x - 2y = 11<br><br>By using Substituting method.

Salsk061 [2.6K]

$\large\underline{\sf{Solution-}}$

$\sf \longmapsto x + y = 7 \: \: - - - (i)$

$\sf \longmapsto 3x - 2y = 11 \: \: - - - (ii)$

<u>By first equation,</u>

$\sf \longmapsto x + y = 7$

$\sf \longmapsto x = 7 - y$

<u>Now, we can find the original value of y.</u>

$\sf \longmapsto 3x - 2y = 11$

$\sf \longmapsto 3(7 - y) - 2y = 11$

$\sf \longmapsto 21 - 3y - 2y = 11$

$\sf \longmapsto 21 - 5y = 11$

$\sf \longmapsto - 5y = 11 - 21$

$\sf \longmapsto - 5y = - 10$

$\sf \longmapsto y = \dfrac{ - 10}{ - 5}$

$\sf \longmapsto y = 2$

<u>Now, we can find the original value of x.</u>

$\sf \longmapsto x + y = 7$

$\sf \longmapsto x + 2 = 7$

$\sf \longmapsto x = 7 - 2$

$\sf \longmapsto x = 5$

Therefore, the values of x and y are 5 and 2 respectively.

8 0

2 years ago

Read 2 more answers

Please help, I don't know what this is, thank you

Marianna [84]

Answer:

Step-by-step explanation:

3 0

3 years ago

Change 2.1 to a mixed number

Brut [27]

Answer: 2 $\frac{1}{10}$

Step-by-step explanation:

2.1 is the same as 21/10

which will give 2 $\frac{1}{10}$

4 0

2 years ago

Read 2 more answers

Find the slope of the line through the points (3,2) and (4,5).

igomit [66]

Answer:

<h2>The answer is 3</h2>

Step-by-step explanation:

The slope of a line given two points can be found by using the formula

$m = \frac{ y_2 - y _ 1}{x_ 2 - x_ 1} \\$

where

(x1 , y1) and (x2 , y2) are the points

From the question we have

$m = \frac{5 - 2}{4 - 3} = \frac{3}{1} = 3 \\$

We have the final answer as

Hope this helps you

5 0

3 years ago