Mathematics College

Simplify by combining like terms: 9xy-3y-y-2xy+3

Answers

Answer 1

Answer:

7xy -4y + 3

Step-by-step explanation:

combine 9xy and -2xy (7xy - 3y -y +3)

combine -3y and -y (7xy - 4y + 3)

all done yay

Related Questions

Mason is working two summer jobs, making $20 per hour lifeguarding and making $10 per hour landscaping. In a given week, he can work no more than 13 total hours and must earn at least $170. If xx represents the number of hours lifeguarding and yy represents the number of hours landscaping, write and solve a system of inequalities graphically and determine one possible solution.

Answers

Answer:

[tex]x = 4\\y = 9[/tex] hours

Step-by-step explanation:

Given -

x represents the number of hours lifeguarding and y represents the number of hours landscaping

[tex]x+ y = 13[/tex] -----Eq ( 1 )

and

[tex]20 * x + 10 * y = 170[/tex] -----Eq ( 2 )

Substituting the value of [tex]x = 13-y[/tex] in equation 2, we get -

[tex]20* (13 - y) + 10 y = 170[/tex]

[tex]260 - 20 y + 10 y = 170\\10y = 90\\y = 9[/tex]

[tex]x = 13-9 = 4[/tex]

Round 1526.04 to the nearest tenths

Answers

1526.00

This is because the 4 is not atleast or greater than five, therefore it rounds down.

can someone help me ? Finding the slope graphically! Please hurry

Answers

Answer:

Step-by-step explanation:

they are asking for the triangle the "hangs " off the line, and so that it's in integer units.

by looking at the graph, I think if you were to draw a line on the y =4 ... so a flat horizontal like from the y axis at 4 on the y axis over to your graphed line.. that would do it.. :/ get it?

then the y axis is the "rise" and the line going from the y axis, horizontallly over to the graphed line, from 4.. and staying on 4 to the line... would be the run... :? I think this will be tough to get

A polynomial function has zeros at 5/2 (multiplicity 2), 3 (multiplicity 1), and 0 (multiplicity 4). Write a function in standard form that could represent this function

Answers

Answer:

-75 x^4 + 85 x^5 - 32 x^6 + 4 x^7

Step-by-step explanation:

[tex](x-5/2)^{2}(x-3)(x-0)^4 =0\\(2x-5)^{2}(x-3)(x)^4 =0[/tex]

Expand and get

-75 x^4 + 85 x^5 - 32 x^6 + 4 x^7

The standard form will be [tex]X^4(x^4-7x^3+12x^2-\dfrac{35x}{2} +\dfrac{25x^2}{4} +\dfrac{25}{4} =0[/tex]

What will be the standard form of the given expression?

The given expression is

[tex](x-\dfrac{5}{2})^2(x-1)^2(x-0)^4=0[/tex]

[tex](x^2-5x+\frac{25}{4} )(x^2-2x+1)(x^4)=0[/tex]

[tex](x^4-2x^3+x^2-5x^3+10x^2-5x+\dfrac{25x^2}{4} -\dfrac{50}{4} x+\dfrac{25}{4} ) x^4=0[/tex]

[tex]X^4(x^4-7x^3+12x^2-\dfrac{35x}{2} +\dfrac{25x^2}{4} +\dfrac{25}{4} =0[/tex]

Thus the standard form will be

[tex]X^4(x^4-7x^3+12x^2-\dfrac{35x}{2} +\dfrac{25x^2}{4} +\dfrac{25}{4} =0[/tex]

To know more about Polynomials follow

https://brainly.com/question/15702527

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So you may be wondering what the question is well take a look oh and by the way please do not give a random answer and its a maths question

A, B, and C lie on a straight line.
Given that angle y= 118 degrees and angle z =107 degrees work out x.

Answers

Step-by-step explanation:

m∠B = 180° - y°

= 180° - 118°

= 62°

x° = 180° - (m∠B + z°)

x° = 180° - (62° + 107°)

x° = 180° - 169°

x° = 11°

i don't know, it was correct or no. Because i thought this question is looking for the valuable of x.

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A triangular prism has a volume of 400 cubic inches. The area of base is 25 square inches What is the height of the prism?

Answers

h= 16 in
because h=V
AB=400/25=16in

A rectangular prism has a length of 11ft, a height of 4ft, and a width of
3ft. What is its volume, in cubic ft?

Answers

Answer:

132 feet

Step-by-step explanation:

Volume = 11×3×4 = 132 feet

an electronics store is having a 20%-off on all cell phones. the original price of a cell phone is x dollars. which expression represents the sale price of a cell phone?

a. x - 0.2
b. x - 0.8
c. 0.2*x
d. 0.8*x

Answers

Answer: x*.2

Step-by-step explanation:

When you are trying to find the sale price you want to multiply the origanal price of the cellphone to the percentage you are getting off. Hope this helped!

What is the volume of a cube with a side length of 3t5units?

Cube V = s3

Answers

Answer:

V=a3=33=27

Step-by-step explanation:

sorry if its wrong

Money is shared between Sam and Sophie in the ratio 4:7 Sam gets 120 how much money does Sophie receive?

Answers

Answer:

sophie receives £210

Step-by-step explanation:

120÷4=30

30x7=210

How do savings account differ from checking accounts
- they’re not offered at banks
- they typically pay interest
- the funds are easier to get
-you have to keep the money in for a long

Answers

Answer:

Savings accounts typically pay interest.

Step-by-step explanation:

You want to buy a shirt that is originally $32.95. It is on sale for 20% off! What is the shirt's SALE price?

Answers

$26.36 (find out what 20% of 32.95 is then subtract it from the original cost) hope this helped

Find the volume.please :>

Answers

Answer:

The volume of the cube is 77 inches.

Can someone please help me?

Answers

Answer:

#25 is left, #27 is between, #28 is below, and #26 is first i think.

Step-by-step explanation:

Answer: #25 is left, #27 is between, #28 is below, and #26 is first i think.

Step-by-step explanation:

What is the average rate of change for f(x) = 2 ^ x + 10 over the interval 2 <= x <= 4

Answers

The answer is c8 hope that helps

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Answers

Multiply all 3 of those numbers to get your answer

plz plz plz, HELP!!!! I will give u brainlylist

Answers

Answer:

Step-by-step explanation:

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every day, andrews orange juice stand uses 2 bags of oranges. How many days with 2/3 of a bag of oranges last?

Answers

Answer:

2/3

Step-by-step explanation:

could you help me pleas

Answers

21 for 3 and 10 for 70

First gap is 21
Second gap is 10

You know that 28 strawberries make 4 smoothies, so you also know that 7 strawberries makes 1, you find this out by dividing 28 by 4.

You then need to do 7 x 3 which is 21, and 70 / 7 which is 10.

Hope this helps x

The speed of the current in a creek is 5 mph. A person clan kayak 3 mi upstream in the same time that it takes him to kayak 13 mi downstream. What is the speed
the person's kayak in still water?
The speed of the person's kayak in still water is

Answers

Answer:

Step-by-step explanation:

0) the basic formula is: L=v*t, where L - distance, v - speed/velocity; t - time;

1) if the person's speed in still water is 'v' and the speed of water is 5 (according to the condition), then the upstream speed is 'v-5' and the downstream speed is 'v+5';

2) according to the condition the upstream time and the downstream time are the same, it means t₁=t₂=t, where t₁=upstream time and t₂=downstream time;

3) according to the items above it is possible to make up the equation of the upstream travel: t(v-5)=3; ⇒ t=3/(v-5);

4) according to the items above it is possible to make up the equation of the downstream travel: t(v+5)=13; ⇒ t=13/(v+5);

5) if t=3/(v-5) and t=13/(v+5), then

[tex]\frac{3}{v-5} =\frac{13}{v+5}; \ => \ v=8.[/tex]

I'm gonna send you a picture of it

Answers

Answer:

Of whaT?

But thanks for the free points

Solve 4ax + 5ax = 6 ax + 9 for x. Assume a = 0.

Answers

Step-by-step explanation:

4ax + 5ax = 6 ax + 9

If a=0

Then

0+0≠0+9

so x is undefined

If the value of 'a' is zero. Then the solution of the equation will be not defined.

What is the solution to the equation?

The distribution of weights to the variables involved that establishes the equilibrium in the calculation is referred to as a result.

The equation is given below.

4ax + 5ax = 6ax + 9

Simplify the equation for x, then the equation is given as,

4ax + 5ax = 6ax + 9

4ax + 5ax - 6ax = 9

3ax = 9

x = 3 / a

If the value of 'a' is zero. Then the solution of the equation will be

x = 3 / 0

x = not defined

If the value of 'a' is zero. Then the solution of the equation will be not defined.

More about the solution of the equation link is given below.

https://brainly.com/question/545403

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A farmer sells 8.9 kilograms of pears and apples at the farmer's market. 1 4 of this weight is pears, and the rest is apples. How many kilograms of apples did she sell at the farmer's market?

Answers

Answer:

7.5 kilograms of apples

Step-by-step explanation:

Take the total amount and subtract the amount of pears.

8.9-1.4=7.5

Answer:

If 2/5 are apples, 2/5 x 8.9 kilos = 0.4 x 8.9 = 3.56 kilos of apples

pears = 8.9 - 3.56 = 5.34 kilos

if apples are 2/5, then pears are 3/5. 3/5 x 8.9 = .6 x 8.9 = 5.34 kilos of pears

Rewrite the expression using the fewest terms possible n ( 3 + 2) + 3n

Answers

8n

Add 3 and 2 to get 5

n x 5 + 3n

n x 5 = 5n

5n + 3n = 8n

HELPPPP!!!!!!!!!!!!!

Answers

Answer:

Its A

Step-by-step explanation:

Answer:

Step-by-step explanation:

y= -3x + 7

Which of the following expressions are equivalent to 256^x? Select all that apply.

a. 8^2x
b. 4^4x
c. (64^x)^2
d. (16^x)^2
e. 2^8x

Answers

Answer:

Step-by-step explanation:

i did it on eduhguenity

The solutions which satisfy the equation A = 256ˣ are

Option B. 4⁴ˣ

Option D. 16²ˣ

Option E. 2⁸ˣ

What is an Equation?

Equations are mathematical statements with two algebraic expressions flanking the equals (=) sign on either side.

It demonstrates the equality of the relationship between the expressions printed on the left and right sides.

Coefficients, variables, operators, constants, terms, expressions, and the equal to sign are some of the components of an equation. The "=" sign and terms on both sides must always be present when writing an equation.

Given data ,

Let the equation be represented as A

Now , the value of A is given by A = 256ˣ

The value of equation B = 8^2x

B = 8²ˣ