Solve for x and y simultaneously

Pls help me ​

Answer:

t=9

Step-by-step explanation:

subtract 9 from both sides

t/3=3

t=9

Answer:

Here we can not see the options, so i will answer in a general way.

When we have a function y = f(x), we define:

x as the input

y as the output.

so f(x) is some kind of "machine", in wich we put an input x, and the "machine" does something and returns an output y.

In, this case, we have:

y = f(x) = 4*x - 3

then if we give this function different inputs, we will get different ouputs.

for example, if we use the input x = 0, then the output is:

y = f(0) = 4*0 - 3 = -3

Then if we made a table for inputs and outputs, we will have the data:

[tex]\left[\begin{array}{ccc}inp&out\\x&y\\0&-3\end{array}\right][/tex]

We can rewrite this table in a general way as:

[tex]\left[\begin{array}{ccc}inp&out\\x&4*x - 3\end{array}\right][/tex]

This means that for every input x, the output is always 4*x - 3.

To complete this type of tables, we usually use different values of x, for example here I will use some different ones:

y = f(3) = 4*3 - 3 = 12 - 3 = 9

y = f(10) = 4*10 - 3 = 40 - 3 = 37

y = f(-1) = 4*-1 - 3 = -4 - 3 = -7

Then we will have a table like:

[tex]\left[\begin{array}{ccc}inp&out\\3&9\\10&37\\-1&-7\end{array}\right][/tex]

Concluding, the thing that will always represent the output of our function is: 4*x - 3.

Answer:

√(684×684)=√684²=±684

Answer:

-2(-11v-4)

Step-by-step explanation:

Answer:

the third one

Step-by-step explanation:

36+ 226h=425, I hope this helps:)

Answer:

1/3 pie r square h ( 2nd option)

Step-by-step explanation:

Answer:

so I'm not 100% sure but in these types of questions you are supposed to divide

so you have a pack of 24 bottles for 7.99

so you would do 7.99÷24 = 0.33

then to check it you can multiply

0.33× 24 bottles and it gives you 7.93 which is super close to 7.99 anyway I hope this helps ...

Answer:

Σ (-2)^n

n=1

Hope this helps

Answer:

Option A will be your answer

Step-by-step explanation:

hope it's helpful...

4 feet

Step-by-step explanation:

there's 12 inches in a foot. so 48÷12= 4 feet

Answer:4.7

Step-by-step explanation:

Answer:

acute is one of the i hope this helps

Answer:

x = 2

y = 1

Step-by-step explanation:

4 x 2 = 8

3 x 1 = 3

8 + 3 = 11

So therefore

x = 2

y = 1

Have a nice day :)

Spanish:

Responder:

x = 2

y = 1

Explicación paso a paso:

4 x 2 = 8

3 x 1 = 3

8 + 3 = 11

Asi que, por lo tanto

x = 2

y = 1

Que tenga un buen día :)

Answer:

JUST USE THE CALCULATOR DUHHH!!!

Answer:

-1/6

Step-by-step explanation:

-1

6

-1*1= -1

2*3= 6

Answer:

500

Step-by-step explanation:

I believe the answer is D) The mean cannot be determined from the available information.

The mean in math means the sum of all the numbers divided by how many numbers there are. There is no information about how many numbers there are nor any information of which numbers exist and which numbers don't.

The data set only tells us the first number, last number, and median-- things a box-and-whisker plot would tell us; perhaps a different way of representing data would work better to help us find the median like a dot plot or a bar graph.

If this is incorrect, please, don't refrain to tell me. Thank you.

Answer:

24 units^2. :)

Answer:

y = -3

Step-by-step explanation:

y=2cos(x/4)−3

range of cos α : -1 ≤ cos α ≤ 1

-2 ≤ 2cos(x/4) ≤ 2

-5 ≤ 2cos(x/4)−3 ≤ -1       (-2-3= -5 and 2-3= -1) ....Range ( 2 x Amplitude)

midline: midline of y = -1 and y = -5        y = -3

Answer: 12 students preferred math

Step-by-step explanation:

Take this equation

80(n)

n will equal (0.15) for the 15% surveyed who preferred math

80(0.15)

12

Answer:

Step-by-step explanation:

300t=280(t+2)

300t=280t+560

20t=560

t=28

Answer:

H

Step-by-step explanation:

-4000 is the slope

pick a point

y = -4000x + 20000

Answer:

$2.24

Step-by-step explanation:

Since we are trying to find a percentage of something, we can multiply whatever we're trying to find a percentage from by 0.X where X is equal to the number of the percentage. So in this case it's 15%. We can multiply $14.90 by 0.15 and we get 2.23500. Since we cannot have 2.235 dollars, we must round up decimal places.

The tip would be 2 dollars and 24 cents. ($2.24).

9514 1404 393

Answer:

  6.4 ounces

Step-by-step explanation:

10% of 64 ounces is ...

  0.10 × 64 = 6.4 . . . . ounces

Cam needs to drink 6.4 ounces to reach the recommended amount.

Answer:

57

Step-by-step explanation:

if 1 = 123 degrees, and the angles add up to 360, then 6 would be 57. Because you would do 123 is 5 and 8, and so 246 is adding those angles. So now you have 7 and 6. 360 - 246 is 114, and since 7 and 6 are equal, just divide that by 2

Answer:

Step-by-step explanation:

Factor

x^2-6x+8<0

(x-2)(x-4)<0

For this to be less than zero the factors must have opposite signs.

x>2 and x<4

2<x<4

So x is all real numbers between 2 and 4 or in interval notation

x=(2,4)

Answer:

12/25 and 12/24

Step-by-step explanation:

Answer:

12 over 25 and 11 over 24

Step-by-step explanation:

12 yellow marble out of 25 then you take one away because a marble wasn't put back into the bag so 11 over 24