MATHEMATICS HIGH SCHOOL

Simplify (3x + 5) + (2x - 9) - (4x + 3).
x - 7
-x - 7
-9x - 1
9x - 1

Answers

Answer 1
Answer: (3x+5) + (2x-9) - (4x+3)
Open the parentheses.
3x + 5 + 2x - 9 - 4x - 3
Combine like terms.
3x + 2x - 4x + 5 - 9 - 3
Sometimes it helps to think of them separately:
3x + 2x - 4x = x (because 3+2-4=1)
5 - 9 - 3 = -7 
So the final thing is
X - 7
Answer 2
Answer:

Answer:

X - 7

Step-by-step explanation:

Related Questions

What is the payment if there is $219 with a 3.5% sales tax
Which of the following would be an example of a mixture?A. table saltB. waterC. a tossed salad
What is the answer to multiplication example called
A certain been plant grows 15% in height each day. Today after 10 days it is 27 inches tall. How tall was it yesterday?
What is A ∩ B?    Let set A = {odd numbers between 0 and 100} and set B = {numbers between 50 and 150 that are evenly divisible by 5}.

3 cans that store 9 tennis balls... Find the constant of proportionality & write a equation to represent the relationship PLEASE help

Answers

3 cans store 9 tennis balls.
Find the Constant of proportionality and write and equation with regards to this given situation:
=> number of tennis balls = 9
=> number of cans = 3

 So the constant of proportionality is  in the working column. Pls see attached.



A 65.0 gram sample of some unknown metal at 100.0° C is added to 100.8 grams of water at 22.0° C. The temperature of the water rises to 27.0° C. If the specific heat capacity of liquid water is 4.18 J/ (°C × g), what is the specific heat of the metal?2.25 J/ (°C × g).
1.75 J/ (°C × g).
0.444 J/ (°C × g).
0.324 J/ (°C × g).

Answers

heat gained by the metal = heat lost by the water
65.0* Cs * (100.0°C - 27.0°C) = 100.8 g * 4.18 J/(°Cxg) * (27.0°C - 22.0°C)

Cs = 100.8 * 4.18 * 5.0 / (65.0 * 73) J/(°Cxg) = 0.444J/(°Cxg)

Answer: the fhird option, 0.444 J/(°Cxg)

Gaby has a total of 36 coins in her piggy bank. If the only coins in the bank are nickels and quarters, and add upto $6, how many of each coin are in her piggy bank?

Answers

Answer:

21 quarters = 5.25

15 nickel. = .75

Step-by-step explanation:

21 + 15 = 36

5.25 + .75 = 6.00

Answer:

21 and 15

Step-by-step explanation:

Emily needs 5 cups of milk to make a vanilla milkshake.Should she buy a pint,a quart,or a gallon of milk?Explain your answer

Answers

Answer:

The correct answer is a gallon of milk

Step-by-step explanation:

From the given question, for Emily to make a vanilla milkshake, she need to buy a gallon of milk

This is because, if she buys a pint that will be same  to 2 cups, if she buys a quart is the same as  4 cups and the gallon 16 cups.the only solution here is having   more than 5 cups will result to  a gallon.the rest are very small to be considered.
a gallon becase if she buys a pint that will equal to 2 cups.and a quart is 4 cups and the gallon 16 cups.the only choice with more than 5 cups is a gallon.the rest are much too small.

20=8+v i dont know how to do this

Answers

20 = 8 + v equals v = 12.

First,  subtract 8 from both sides. Your problem should look like: 20 - 8 = v
Second,  simplify 20 - 8 to get 12. Your problem should look like: 12 = v.
Third, switch sides to get v = 12, which is the correct answer.
You subtract 8 from both sides so the answer is v=12

Find the value of x. Round your answer to the nearest tenth.

Answers

So for this, we will be using the pythagorean theorem, which is leg^2+leg^2=hypotenuse^2 . 9 is being used instead of 18 because we are using only one half of this triangle.

Firstly, apply the numbers to their place 9^2+20^2=x^2

Solve the exponents to get 81+400=x^2

Add up the left half of the equation to get 481=x^2

And lastly, square root both sides of the equation, and your answer should be 21.9=x
Other Questions
Kyle rides his bicycle 15 mph for 2 hours how far does he travel
The formula for the volume of a cylinder is V = πr2h. The volume of a cylinder is three times the volume of a cone with the same radius and height. If the volume of a cone with the same height as a cylinder equals the volume of the cylinder, the equation for the radius of cone R in terms of the radius of cylinder r is
4^(5 )Identify the base and the exponent in the following expression.4 is the ______ and the 5 is the _______
Name the pair of angle, Find the measure of angle b