All categories

3 years ago

Does it matter if you group like terms?

Mathematics

1 answer:

Mashcka [7]3 years ago

4 0

Answer: Yes it does matter because you can't add the like terms if they aren't the same.

Step-by-step explanation: 2x+8y you can't add these two because they don't have the same like terms.

You might be interested in

Simplify your answer as much as possible

Serhud [2]

Answer:

Step-by-step explanation:

7 0

3 years ago

Read 2 more answers

Paul can clean a classroom floor in 3 hours. When his assistant helps him, the job takes 2 hours. How long would it take the ass

castortr0y [4]

It would take 6 hours for the assistant to clean the classroom alone.

Step-by-step explanation:

The job in this case is cleaning a classroom.

Paul can clean a classroom in 3 hours

Part of job done by Paul in one hour = 1/3

Similarly, Assistant can clean the same classroom alone but the job this time will take x hours

Part of job done by Paul's assistant = 1/x

Together, Paul and assistant completes the job in 2 hours.

Part of job done by Paul and his assistant together = 1/2

Now, we know that the sum of work done per hour by paul and his assistant separately is equal to the work done by Paul and his assistant together:

Work per hour by Paul + Work per hour by assistant = Work per hour done together

⇒ $\frac{1}{3} +\frac{1}{x} =\frac{1}{2}$

$\frac{1}{x} =\frac{1}{2} -\frac{1}{3} \\\frac{1}{x} = \frac{3-2}{6} \\\frac{1}{x} =\frac{1}{6}$

⇒ x = 6 hours

Hence, the assistant would take 6 hours to clean the classroom alone.

Learn more about work done applications from brainly.com/question/10694003

#learnwithBrainly

4 0

3 years ago

Which equations represent circles that have a diameter of 12 units and a center that lies on the y-axis? Select two options. x2

olga55 [171]

Answer:

x^2 + (y – 3)^2 = 36

Step-by-step explanation:

The standard equation of a circle with center at (h, k) and radius r is

(x - h)^2 + (y - k)^2 = r^2.

If the center lies on the y-axis, then h = 0: (x - 0)^2 + (y - k)^2 = r^2

If the circle diameter is 12, then the circle radius is 6, and so r^2 = 36

So, among the given equations, your

x^2 + (y – 3)^2 = 36 is correct (but only if you use " ^ " for exponentiation).

3 0

3 years ago

Read 2 more answers

The face of a clock has a diameter of 20 inches. What is the area of the<br> face of the clock?

Nikolay [14]

Answer:

1. area = pi*r^2

herein, dia = 20 inch

radius = 10 inch

area = 22/7*10*10

= 314.2 square inch

Step-by-step explanation:

5 0

3 years ago

What is a slope perpendicular to the line with equation 6x-4y=30. Can u guys show me step by step. (I’m barely learning and I’m

Anastasy [175]

I did these about 1 year ago but i think you subtract the 6 from 30 and then divide by 4, and that gives u 24/4 which is 6. i barely barely remember some so

5 0

3 years ago

Read 2 more answers