What’s the value of Y?

Answer:

A system of equations are two or more equations that has to be valid at the same time. It means that the variables of one equation can be substitute in the other equation.

For example we have y=5x−8 and we can substitute this value of y in the other equation

4x+3y=33

4x+3(5x−8)=33 we can solve now for x

4x+15x−24=33

19x=33+24

19x=57

x=5719=3.

y can be obtained from the first equation

y=5x−8

y=5⋅3−8=15−8=7

Then x=3 and y=7.

Step-by-step explanation:

Answer:

x = 3

y = 7

Step-by-step explanation:

y = 5x - 8  ---------------(I)

4x + 3y = 33 ------------(II)

Substitute y = 5x - 8 in equation (II)

4x + 3 (5x - 8) = 33  

4x + 3*5x - 8*3 = 33

4x + 15x - 24 = 33           {Combine like terms}

      19x  - 24 = 33            {Add 24 to both sides}

            19x = 33 + 24

           19x = 57           {Divide both sides by 19}

             x = 57/19

x = 3

Substitute x = 3 in equation (I)

y = 5*3 - 8

y = 15 - 8

y = 7

Answer:

X=5

Step-by-step explanation:

1st rectangle and 4th rectangle

Answer:

1.

a settled way of thinking or feeling about something

Answer:

Altitude or height is a distance measurement, usually in the vertical or "up" direction, between a reference datum and a point or object. The exact definition and reference datum varies according to the context.

Step-by-step explanation:

Answer:

32

Step-by-step explanation:

got it right on edge

Answer:

x=5 and y=6

Step-by-step explanation:

Answer:

x=5, y=6

Step-by-step explanation:

-6x + 6y = 6

If we divide this by 6 (which we can do because it is an equation), we can simplify this by a lot.

-6x + 6y = 6

-x + y = 1 <-- NEW EQUATION #1

We can also simplify -6x + 3y = -12 by dividing everything by 3.

-6x + 3y = -12

-2x + y = -4 <-- NEW EQUATION #2

Substitution is fairly easy for this problem.

Isolate the variable

-x + y = 1

y = x + 1

Now substitute (x+1) for where you see y in the second equation.

-2x + (x + 1) = -4

-x + 1 = -4

x = 5

Now substitute 5 for x.

-(5) + y = 1

y = 6

Answer:

Yes

Step-by-step explanation:

To find if the point (3,4) a solution to the linear equation y=4x-8 you need to substitute (3,4) into y=4x-8

(x,y)

(3,4)

x=3 and y=4

Subistute:

4=4(3)-8

4=12-8

4=4 which is correct so the answer is yes (3,4) is a solution for y=4x-8

Answer:

I am not sure sowwy i hope you get it tho!!

Step-by-step explanation:

1_2_3_

Answer:

The answer is (5, 38)

Step-by-step explanation:

Solve for the first variable in one of the equations, then substitute the result into the other equation.

~Hoped this helped~

Answer:

(5,38)

Step-by-step explanation:

Answer:

1. 4.3x10^-7

2. the picture is cut off

Step-by-step explanation:

6+ -4=2

-8-(10) = 2

-7 + 3= - 4

Answer:

3, 15

Step-by-step explanation:

1/10 of a unit also just means dividing by 10. 1/2 is just dividing by 2. Hope this helped!

Answer:

1/10= 3

1/2=15

Step-by-step explanation:

If the whole unit is 30, then one tenth of it would be three (3x10=30) and one half of it would be 15 (2x15=30)

Answer:

the first one

Step-by-step explanation:

kkrkrkrkrkrk

Answer:

(-4,1)

Step-by-step explanation:

Answer:

i can help u if u let me know whta the equation means

Step-by-step explanation:

Answer:

25$

Step-by-step explanation:

Answer:

The difference is While pay grades are administrative classifications used primarily to standardize compensation across the military services, ranks indicate a level of responsibility (for personnel, equipment, and mission) which grows with each increase in rank.      

Step-by-step explanation:

There similar because Pay grades E-1 through E-3 generally indicate basic training, advanced training or entry-level work. For the Army and Marines, E-1 corresponds to the rank of private

I hoped this helped!

Answer:

-12.73

Step-by-step explanation:

since you are adding a negative, it is the same as subtracting. subtract -7.1 from -5.63 to get -12.73. hope this helps

Answer: 30

Step-by-step explanation:

Devon drove 30 miles in 1 hour because 120/4 is 30

Answer:

Step-by-step explanation:

Let the number of the problems the team could solve before is x.

Then we have:

They were able to solve 30 problems before the new mathletes joined

Answer:

[tex]\tt{}x = 30 \\ [/tex]

Step-by-step explanation:

[tex]\tt{}x + 40\% = 42[/tex]

[tex]\tt{}1.4x = 42[/tex]

[tex]\tt{}x = \frac{42}{1.4} [/tex]

[tex]\tt{}x = 30[/tex]

[tex] \\ \\ \\ [/tex]

[tex] \huge \orange{\boxed{ \fcolorbox{red}{blue}{ \: CarryOnLearning \: }}}[/tex]

Step-by-step explanation:

tu lo que pusiste es falso

Answer:

8 + -1 here you go hope this helps

Answer:

11

Step-by-step explanation:

2 3/4 divided by 1/4 = 11

Answer:

f(-7)=12

Step-by-step explanation:

f(-7)= 5-(-7)

f(-7)=5+7

f(-7)=12

Answer:

y=3x. .................

X=5

Step-by-step explanation:

X-5=0. X+2=0

X=5. X=-2

Answer:

49x +65y

Step-by-step explanation:

add like terms

The answer is 50 percent

As per the given data, the constant of proportionality increased by 50%.

Two numerical sequences, often experimental data, are said to be proportional or directly proportional if their corresponding elements have a constant ratio, which is known as the coefficient of proportionality or proportionality constant.

To solve this problem, we need to compare the proportion of defective batteries in week 1 and week 2. Let's start by finding the proportion of defective batteries in week 1:

For the first test: 4/160 = 0.025

For the second test: 15/600 = 0.025

So in week 1, the proportion of defective batteries was 0.025.

Now let's find the proportion of defective batteries in week 2:

18/480 = 0.0375

The proportion of defective batteries in week 2 is 0.0375.

To find the percent increase in the constant of proportionality, we need to compare the two proportions:

(0.0375 - 0.025)/0.025 x 100% = 50%

Thus, the constant of proportionality increased by 50%.

For more details regarding constant of proportionality, visit:

https://brainly.com/question/29126727

#SPJ3

Answer:

1.25 hours

Step-by-step explanation:

While driving on the highway, Mason put his car on cruise control at 68 miles per hour. Therefore it takes 1.25 hours to drive 85 miles.