Complete the solution of the equation. Find the
value of y when x equals 15.
-x + 2y = -1

Answer:

x = 4, y = 0

Step-by-step explanation:

Two find x and y, we can simply solve one of the two equations for one of the variables, and substitute it into the other.  That will provide one of the two values, which can then be plugged into either equation for the other value.  Let's do it:

[tex]2x - y = 8\\y = 2x - 8\\\\x + 3y = 4\\x + 3(2x - 8) = 4\\x + 6x - 24 = 4\\7x = 28\\x = 4\\\\y = 2x - 8\\y = 2(4) - 8\\y = 0[/tex]

So x is equal to four, and y is equal to zero.

Answer:

43 - 15x

is the answer

Answer:

-15x + 43

Step-by-step explanation:

8-5(3x-7)

8-15x+35

-15x+43

omg thank u sooo much for the points!! :D

9514 1404 393

Answer:

  5.0 ft

Step-by-step explanation:

The mnemonic SOH CAH TOA reminds you of the relevant relationship.

  Sin = Opposite/Hypotenuse

  sin(38°) = x/8.2

  x = 8.2·sin(38°) ≈ 5.048

  x ≈ 5.0 . . . . feet

Answer:

F

Step-by-step explanation:

Properties of Exponential Function for Roots.

[tex]a^{\frac{m}{n}}=\sqrt[n]{a^m}[/tex]

The first one is wrong as 4^1/2 would equal √4 = 2

The second choice is correct.

The third choice is correct because ∛8 = 2 and √4 also = 2

The fourth choice is wrong because √8 = 2√2

The fifth choice is also wrong because 2^1/2 would be √2 while √32 is 2^5

The sixth choice is 3^3/2 which would equal √27 = 3√3 which is correct.

Answer:

62??

Step-by-step explanation:

Answer:

When dividing two fractions by each other, the result will be larger. Dividing two whole numbers, however, will always result in a smaller number because you're taking away a part of the number.

Step-by-step explanation:

Answer:

25+24h=145

Step-by-step explanation:

Answer:

30 markers

Step-by-step explanation:

We need to divide 24 by 8 to find how many packs of 10 markers we can buy, this gets us 3 packs of 10 markers. I hope this helps!

Answer:

Step-by-step explanation:

m * 2 = 38

Equation: 2m = 38

Solution:

2m = 38

 m = 38/2

m = 19

Malik's score = 19

Answer:

38 is the product of Malik's score and 2. Use the variable m to represent Malik's score

Marks scored by Malik

The equation will be

[tex] \frak{2m = 38}[/tex]

Total marks

[tex] \tt \: m \: = \dfrac{38}{2} [/tex]

[tex] \tt \: m \: = 19[/tex]

The marks scored by Malik is 19

Answer:

I7.

Step-by-step explanation:

at r = 13,

r + 4 = 13 + 4 = 17

Answer:

I think that it is the first one and the third one.....

I hope that it is correct, I tried helping you get it correct

This, is as far as I go. Goodluck with the rest man. Let me know if you need more assistance. :)

Answer:

( x + 5 ) · ( x + 1 )

Step-by-step explanation:

-Factoring by grouping-

First, split the middle term into two parts that are factorable by the other variables.

x² + x + 5x + 5

Factor the parts

x · ( x + 1 ) + 5 · ( x + 1 )

( x + 5 ) · ( x + 1 )

Answer:

C

Step-by-step explanation:

Given

x² + 6x + 5

Consider the factors of the constant term (+ 5) which sum to give the coefficient of the x- term (+ 6)

The factors are + 1 and + 5 , since

1 × 5 = + 5 and 1 + 5 = + 6, thus

x² +6x + 5 = (x + 1)(x + 5) → C

Answer:

An airplane which has airspeed of 575 hm/hr head directly east the win is blowing with a velocity of 8.20 km/hr

Step-by-step explanation:

Answer:

15-(-26)

Step-by-step explanation:

positive is lower than negative so the remaining number will be negative.

Answer:

This is way out of my level sorry. Thanks me

Step-by-step explanation:

Answer:

3

Step-by-step explanation:

math

Answer:

Joey completed 52 pushups each day.

Step-by-step explanation:

We know that he did 1,456 pushups in 4 weeks, and that there are 7 days a week.  This means that he did those pushups in the span of 28 days.  So, divide 1,456 by 28 to get 52 pushups.

Answer:

$120 per pound

Step-by-step explanation:

Answer:

12 rolls

Step-by-step explanation:

2 dozen is 24 so if he used a dozen which is 12 then he would have 12 left

Answer:

I don't understand sorry

Step-by-step explanation:

Answer:

(9,-4)

Step-by-step explanation:

its right hope it's helpful

Answer:

-The latitude and longitude lines on maps of the Earth

-Planning where to place different pieces of furniture in a room

The real life application of coordinate plane are ; Digital, location in airports, Map projection, GPS, Latitude and Longitude and many more.

A coordinate plane is a tool used for graphing points, lines, and other objects.

Some real life applications are:

Digital World

In this, any PDF file we open are created according to 2-D coordinates (x, y), all the concepts like distances, slopes and trigonometry are applicable in this.

Location of Air Transport

In this, air traffic are mainly managed by coordinates study, to find the location of a particular location for any change in location of a plane it is used.

Map Projections

The points usually provides the frame of references for your data, to locate the position on the surface of earth.

GPS

We use GPS for any specific location identifier on the earth which we get in the form of coordinates, these are points showing the asked location.

Latitude and Longitude

These are the parameter used to locate any specific point on the earth, Latitude and Longitude are always defined by a point, they constitute a coordinates system to identify any geographical location.

For more references on coordinate plane, click;

https://brainly.com/question/13611766

#SPJ2

Answer:

.....yes

Step-by-step explanation:

Answer:

d.-79/200

Step-by-step explanation:

Answer:(A)

Source:trust me bro