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emmasim [6.3K]
2 years ago
9

Given the following equation what is the value of y if x = 7

Mathematics
1 answer:
IgorC [24]2 years ago
7 0
Y = 8(49) + 9(7) + 11

y = 466
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1/2(4x-2)-2/3(6x+9) greater or equal to 4
Simora [160]
1/2(4x-2)-2/3(6x+9)
(2x-1)-(4x+6)
2x-1-4x+62x-4x-1+6
-2x+5=2.5
So I believe that it is greater than 4
8 0
3 years ago
An airplane takes 4 hours to travel a distance of 2600 miles with the wind. The return trip takes 5 hours against the wind. Find
tankabanditka [31]
2,600/4 =650
650•5 =3,250


I found the unit rate of the 2,600 by dividing the per hour and then times it by the 5 hours

Hopefully that was what you were looking for
3 0
3 years ago
What is the Scale Factor? (I need an actual answer this time so I can move on from my assignment I'm working on)​
steposvetlana [31]

Answer:

not sure which is the origional-

if the big one is the origiinal, then 1/2

if the small one is the origional- then 2-1

8 0
3 years ago
PLS HELP! GIVING BRAINLIST!
svlad2 [7]

Answer:

We conclude that (4, 2) is NOT a solution to the system of equations.

Step-by-step explanation:

Given the system of equations

y = x - 2

y = 3x + 4

Important Tip:

  • In order to determine whether (4, 2) is a solution to the system of equations or not, we need to solve the system of equations.

Let us solve the system of equations using the elimination method.

\begin{bmatrix}y=x-2\\ y=3x+4\end{bmatrix}

Arrange equation variables for elimination

\begin{bmatrix}y-x=-2\\ y-3x=4\end{bmatrix}

Subtract the equations

y-3x=4

-

\underline{y-x=-2}

-2x=6

Now, solve -2x = 6 for x

-2x=6

Divide both sides by -2

\frac{-2x}{-2}=\frac{6}{-2}

Simplify

x=-3

For y - x = -2 plug in x = -3

y-\left(-3\right)=-2

y+3=-2

Subtract 3 from both sides

y+3-3=-2-3

Simplify

y=-5

The solution to the system of equations is:

(x, y) = (-3, -5)

Checking the graph

From the graph, it is also clear that (4, 2) is NOT a solution to the system of equations because (-3, -5) is the only solution as we have found earlier.

Therefore, we conclude that (4, 2) is NOT a solution to the system of equations.

8 0
3 years ago
2x^2 + 3 + 3x - 1 please help its combing like terms​
Aliun [14]

Answer:

2x^2 + 3x + 2

Step-by-step explanation:

Like terms must have exactly the same variables and exponents on the variables.

2x^2 is not a like term to any other term, so it cannot be combined.

3x is not a like term to any other term, so it cannot be combined.

3 and -1 have no variable, so they are like terms and can be combined.

2x^2 + 3 + 3x - 1 =

= 2x^2 + 3x + 3 - 1

= 2x^2 + 3x + 2

4 0
3 years ago
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