15 less than a number S is three more than 9 times a number T. Solve for S

x+7>3   ----> x>-4

x-5< -1 -----> x<4

Answer:

4x - 4 -9x + 6 = 12x + 24

arrange like terms

-5x +2 = 12x + 24

or, -17x = 22

x = - 22/17

Answer:

4x-4-9x+6=12x+24

4x-12x-9x= 4-6+24

-17 x= 22

X= -22/17

mark it as brainliest!!!

Answer:

add ans subtract like normal

Step-by-step explanation:

Step-by-step explanation:

To add decimals, follow these steps: Write down the numbers, one under the other, with the decimal points lined up. Put in zeros so the numbers have the same length .Then add, using column addition, remembering to put the decimal point in the answer.

subtraction also in the same way only place the large no up and small down and do subtraction.

I hope this helps....

Answer:

3.5 units

Step-by-step explanation:

Since it's a square, all sides are the same length. To find the two side lengths used to get the area, you divide 7 by 2.

7÷2=3.5 units

Answer:

ok um im in sekond grqade sooory

Step-by-step explanation:

Yes.

You can add them together to get 13x.

because you can add them together, they are alike terms.

Answer:

2xy(2x+y)

Step-by-step explanation:

Step-by-step explanation:

f(x) = 2x - 1

f(10) = 2(10) - 1

= 20 - 1 = 19

Answer:

the answer is 2.620

Step-by-step explanation:

the way u will get this is at the top there pattern is adding the bottom they are subtracting 2

Answer:

D. [tex]\pi<x<2\pi[/tex]

Step-by-step explanation:

Given the function

[tex]y=cosx[/tex]

Kindly refer to the graph attached in the answer area.

Referring to the intervals [0, [tex]2\pi[/tex]].

It decreases from the interval [0, [tex]\pi[/tex]] and then starts increasing in the interval

[tex][\pi,2\pi][/tex].

Proving by taking derivative:

Taking derivative of the function, [tex]y=cosx[/tex]

[tex]\dfrac{dy}{dx}=-sinx[/tex]

In the interval [tex][\pi,2\pi][/tex], [tex]sinx[/tex] is negative i.e. [tex]sinx<0[/tex].

Therefore [tex]-sinx>0[/tex]

When, the derivative of a function is positive, then the function is strictly increasing.

So, the answer is:

D. [tex]\pi<x<2\pi[/tex]

Answer:

Say you have to find two consecutive integers whose sum is 89. How do you go about this problem? You first take a variable, say x, the value of which is unknown to you. Next, you are supposed to take another number. Since the problem requires you to use two consecutive integers, the integer next to x will be (x + 1). Now as per the problem, the sum of x and (x+1) is 89. We represent this in the form of an equation: x + (x + 1) = 89. Solving this equation we get x as 44 and the next integer (x + 1) as 45, the sum of which is 89.

Step-by-step explanation:

Answer:

Step-by-step explanation:

(x + 4)/2= 3

x + 4 = 6

x = 2

(y - 4)/2= 2

y - 4 = 4

y = 8

(2, 8) the other endpoint

Answer:

f( -1.5) = 13

Step-by-step explanation:

F(-1.5)= -2(-1.5)+10

-2 times -1.5 = 3

3+10

f( -1.5) = 13

Answer:

to make chocolate milk, the lunch lady uses 4 cups of white milk for each cup of chocolate milk

to make chocolate milk, the lunch lady uses 4 cups of white milk for each cup of chocolate milk

to make chocolate milk, the lunch lady uses 4 cups of white milk for each cup of chocolate milk

to make chocolate milk, the lunch lady uses 4 cups of white milk for each cup of chocolate milk

to make chocolate milk, the lunch lady uses 4 cups of white milk for each cup of chocolate milk

to make chocolate milk, the lunch lady uses 4 cups of white milk for each cup of chocolate milk

to make chocolate milk, the lunch lady uses 4 cups of white milk for each cup of chocolate milk

Step-by-step explanation:

Answer:

P + H ≥ 20

P*0.8 lb + H*1.3 lb ≤ 30lb

Step-by-step explanation:

Let's define H as the number of hardcover books.

Let's define P as the number of paperback books.

Now we have the restrictions:

"... so that there are at least 20 books in each box..."

Then:

P + H ≥ 20   (the total number of books per box is 20 or larger)

"...but the boxes cannot weigh more than 30 pounds."

P*0.8 lb + H*1.3 lb ≤ 30lb (the maximum weight that we can have in the box is 30 pounds)

Then the set of constraints is:

P + H ≥ 20

P*0.8 lb + H*1.3 lb ≤ 30lb

Notice that this system has a lot of possible solutions.

P = 20 and H = 0 is  a solution

P = 21 and H = 0 is a solution.

P = 19 and H = 1 is a solution.

etc...

Step-by-step explanation:

vt7vy7v fyy7ctyxt6zqDg gj

Answer:

10.2

How I found this answer:

4+6=10

3-1=2

10^2+2^2=104

The square root of 104 is 10.1980390272, which can be rounded to 10.2

Answer: 3x +5

Step-by-step explanation:

Group the variables first 8x-5x is 3x. Then look at the numbers -2+7 is 5.

You can't combine letters and numbers so it's as far as you can go.

Answer:

He is incorrect.Because if they are irrational they are the opposite.

Step-by-step explanation:

Answer:

The undefined terms needed to define parallel lines are 'lines' and 'points. ' In geometry, there are three undefined terms: points, lines

Step-by-step explanation:

Answer: Hope this helps ;3

The shortest distance between two parallel lines is the length of the perpendicular segment between them. It doesn't matter which perpendicular line you choose, as long as the two points are on the lines.

Answer: Perpendicular is the length of the  distance of parallel lines

Step-by-step explanation:

= < > ≥ ≤ ≠

I think there’s more but those are the basics

Answer:

a) 3

Step-by-step explanation:

3+10= 13

hope this helped :)

Answer:

A. 3

Step-by-step explanation:

? + 10 = 13

? = 13 - 10

? = 3

Answer:

C.

Step-by-step explanation:

Because R is the vertex and you always name a angle with its vertex in the middle, R would have to be in the middle. So the only possible answer is C.

Answer:

262.5 messages per month

Step-by-step explanation:

Cost of plan = $34.99

Cost per message = $0.16

Maximum bill = $42

Maximum # of messages = $42/$0.16 = 262.5