All categories

2 years ago

Y=x-5 y=7 solve for x simplify your answer as much as possible

Mathematics

1 answer:

love history [14]2 years ago

5 0

Answer:

x = 12

Step-by-step explanation:

First of all, what you will want to do is plug in your y into the first equation, to find the x.

y = x - 5 ----> 7 = x - 5

Next, think about your possible solutions here.... Flip the equation:

5 + 7 = ? ---> 5 + 7 = 12

Now, plug both your x and y in the original equation:

7 = 12 - 5 Does this match?

7 = 7 Yes!

This is the simplest way I can explain it! I hope it is understandable, correct, and helpful. Have a great day :D

You might be interested in

An arithmetic sequence is defined by the recursive formula t1 = 11, tn = tn - 1 - 13, where n ∈N and n > 1. Which of these is

galben [10]

coolio

$t_1=11$

$t_n=t_{n-1}-13$

so each term is ound by subtracting 13 from the previous term

an aritmetic sequence can be written as

$t_n=t_1+d(n-1)$ were

$t_n$ is the nth term

$t_1$ is the first term

d is common difference, which can also be found by doing $t_n-t_{n-1}=d$

n=wich term

we know that $t_1=11$ and we can find d

$t_n=t_{n-1}-13$ , $t_n-t_{n-1}=-13=d$

so te general term is $t_n=11-13(n-1)$ which can also be expanded and written as $t_n=-13n+24$

6 0

4 years ago

The temperature on Monday was -3 degrees Fahrenheit. By Wednesday the temperature was 16 degrees Fahrenheit. What is the differe

Alexeev081 [22]

The temperature went from -3 to 16. The difference between the two numbers (16- -3) = 19 degrees Fahrenheit.

I hope this helps!

4 0

3 years ago

The Best Company produces two commercial products : blenders and mixers. Both products require a two step production process inv

deff fn [24]

Answer:

Maximum profit is $87 when 3 blenders and 11 mixers are produced.

Step-by-step explanation:

let blender is represented by $x_{1}$ and and mixer by $x_{2}$ .

total time to deliver parts = 24 hrs

total time to assemble = 30 hrs

time taken by each blender to deliver parts = 1 hr

time taken by each mixer to deliver parts = 2 hr

time taken by blenders in final assembling= 2 hr

time taken by mixers in final assembling = 3 hr

Each blender produced nets the firm= $7

Each mixer produced nets the firm= $6

Using this all data linear system of equation will be:

$x_{1} + 2x_{2} =24 ----- (1)\\2x_{1} + 2x_{2} = 30 ----- (2)\\$

profit function:

$z= 7x_{1} +6x_{2} --- (3)$

$from (1)\\x_{1} = 0 \implies x_{2}= 12\\x_{2}= 0 \implies x_{1}= 24\\$

Coordinate points obtained from (1) are (0,12) and (24,0)

$from (2)\\x_{1}=0 \implies x_{2}=10\\x_{2}=0 \implies x_{1}=15\\$

Coordinate points obtained from (2) are (0,10) and (15,0)

plotting these on graph

points lying in feasible region are:

A(0,0)

B(0,10)

C(3,11)

D(12,0)

substituting these points in (3) to find the maximum profit:

for A (0,0)

z = 0

for B (0,10)

z = 60

for C (3,11)

z = 87

for D (12,0)

z=84

So maximum profit is $87 when 3 blenders and 11 mixers are produced.

4 0

4 years ago

Find the length of the missing side of the right triangle 15 and 9 Round your answer to the nearest tenth, if necessary.

mamaluj [8]

Answer:

17.5

Step-by-step explanation:

a^2+b^2=c^2

15^2+9^2=306^2

square root of 306= 17.49

5 0

3 years ago

Find the values of x and y <br> (no links or report don’t answer if u don’t know )

AleksAgata [21]

The x-axis is usually the horizontal axis, while the y-axis is the vertical axis. They are represented by two number lines that intersect perpendicularly at the origin, located at (0, 0), as shown in the figure below.

5 0

3 years ago