Plz help…10 points and a brainliest…

Plz Help10 Points And A Brainliest

Answers

Answer 1

Answer:

substitute the values given,

= (2a + b) - (a - 2b)

= (2(x + 2y) + x - 2y) - (x + 2y - 2(x - 2y))

= (2x+4y+x-2y) - (x+2y-2x+4y)

= (3x+2y) - (-x+6y)

= 3x + 2y + x - 6y

= 4x - 4y

then,

(2a+b) - (a-2b) = 4x - 4y


Related Questions

If 2x -3y = 3 then find 16x 64y =?​

Answers

Answer:

0 is the answer on 16 x 64y

Answer:

1  x = 4      y= 2/3  = 1. 66667   see attached and join the lines to create shaded area.

Step-by-step explanation:

2x -3y = 3

16x (64y) = ?

we can multiply the 2x by 8 to find x = 16 and -3y = -24y and 3 = 24

as shown 2nd one.

16x + (64y) =  c

16x -24y = 24    =   64y - 24y = c

40y = c - 24

40y/24 = y

1.66667 = y

y = 1.6667 or  1  2/3

2x -3 (  1 2/3 ) = 3

2x - 5 = 3

2x = 8

x = 4

y = 1. 66657

Simplify this expression s square root 5 (13+ square root 2)

Answers

Answer:

65 + 5[tex]\sqrt{2}[/tex]

Step-by-step explanation:

5(13 + [tex]\sqrt{2}[/tex]) ← multiply each term in the parenthesis by 5

= 65 + 5[tex]\sqrt{2}[/tex]

A ship starts at sea level and then descends 20 feet in 4 1/2 minutes. How many feet did it descend per minute?
How many feet would it descend in 8 minutes?

Answers

Answer:

1. 4 1/2 can be converted into 4.30 / 20 = 0.125f per minute

2. it would descend 4.64 or 5f rounded in 8 minutes (8/0.125)

Answer:

4.45 feet p/m

35.56 feet per 8 minutes

Step-by-step explanation:

20 / (60x4.5) = 60 seconds  = ( 1 x 4.5 minutes)

20/270=0.0740740741 1 = multiplier of feet/seconds

60 x 0.0740740741 1 =4.44444445 feet in one minute = 4.45feet

60 x 8 = 480 seconds   (1 x 8 minutes)

480 x 0.0740740741 1 =35.5555556 feet

= 35.56feet in 8 minutes

What is the correct standard form for 500 + 6 + 0.09 + 0.003.

Answers

Answer:

506.093

Step-by-step explanation:

i need to know what 26.6 divided by 7 is.

Answers

Answer:3.8

Step-by-step explanation:

13 25 37 arthmetic progression

Answers

Answer:

Progression in increments of value 12

Step-by-step explanation:

13 25 37 49 61 73 85 97 .....

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Miss Hawaii

When you translate (x-2, y + 6) the figure will move____?
a. 2 units right and 6 units right
b.2 units left and 6 units down
c.2 units left and 6 units up
d. 2 units left and 6 units right​

Answers

Answer c : 2 units left, 6 units up

Can someone tell me the answer to this please?

Answer choice C is incorrect

Answers

i’m pretty sure it’s A

Theo worked 3 2/3 hours and earned $28.60

How much would he make if he worked 6 1/3 hours?

Answers

Answer:

He would make $49.40

Step-by-step explanation:

28.60 divided by 3 2/3 is 7.80

Multiply that by 6 1/3 to get 49.40

Dan the Donut man has to buy the donut machine for 89 dollars. He then can make donuts and sell them for 2 dollars a person. How many donuts does he need to sell to make at least
$231?

Answers

Answer:

161 donuts

Step-by-step explanation:

(231+89)/2 then add one more donut as the question asked for at least $231

320/2 = 160 + one more donut = 161 donuts have to sold to make at least $231.

You have add the machine price as he wouldn't be making a profit off it if he didn't surpass what he spent for it.

Check your work by doing 161 times 2 minus 89 minus the 1 donut added and you'll get the $231. Not subtracting the one shows the profit of a dollar aka at least $231

I’m pretty sure he needs to sell 115 donuts

Please Help Me! Look at the Image!

Answers

Answer:

y=-2x+1

Step-by-step explanation:

Just look at photo dap

what is the answer for this question

Answers

Answer:

5

Step-by-step explanation:

Answer:

5 centimeters

Step-by-step explanation:

leaf is 11cm, catepillar is 6.... 11-6=5

helppppppppppppppppppppppppppppppppppppppppppp

Answers

Answer:

hope you like my answer its 2/7

Yash can buy three pencils and have 49c change, or he can buy five pencils and
have 15c change.
(1) Write this information as an equation for x the cost in cents of one pencil.
(ii) How much money did Yash have to start with?

Answers

Answer:

(ii) 1 dollar

Step-by-step explanation:

each pencil costs 17 cents

- thus 3 pencils x 17c is 51c

1.00 dollars minus 0.51 is 49

- 5 pencils x 17c is equal to 85

1.00 dollars minus 0.85 is 15 c

Find the slope on the graph shown

Answers

Answer:

4/3

Step-by-step explanation:

Answer:

The answer is 4/3.

Mike went to the store and saw a tv for $124.79. He had a coupon for 25% off. After the discount, how much did Mike pay for the tv?

Answers

93.59 after the discount


The distance across a two lane road

Answers

In the United States, the Interstate Highway standards for the Interstate Highway System use a 12 ft (3.7 m) standard lane width, while narrower lanes are used on lower classification roads. In Europe, laws and road widths vary by country; the minimum widths of lanes are generally between 2.5 to 3.25 m (98 to 128 in).

Read the statement below and then select the idea that can be inferred from the statement.

Toxicity is high in cities. HELP FASSSSSSSST!!!!!

Environmental scientists help keep the air safe.
Temple University is near Philadelphia.
There is some lead in drinking water.
There are more factories in the city than in the country.
Ground soil can become poisoned with lead.

Answers

Answer: I would say 4

Step-by-step explanation:

Answer:

There are more factories in the city than in the country.

Step-by-step explanation:

Hope this helps!

Can someone maybe help me on number 6 and 7?

Answers

6) the answer is 39
7) the answer is 22

John Paulo bought 10 plastic discs. Each disc weighs 0.9 ounces. How much do the 10 plastic discs weigh in all?

Answers

Answer:

9

Step-by-step explanation:

.9*10=10

it's basically simple multiplication with a decimal

Lines l and m are parallel. Find the value of x.


enter just the number

Answers

Answer:

its x

Step-by-step explanation:

The graph below could be the graph of which exponential function

Answers

Answer:

A

Step-by-step explanation:

The graph below could be the graph of A) F(x) = 2*[tex](0.7)^x[/tex] exponential function.

The graph of the function F(x) = 2 * [tex](0.7)^x[/tex] is a decreasing exponential function. This is because the base of the exponent, 0.7, is between 0 and 1. As x increases, the value of [tex](0.7)^x[/tex] decreases, so the value of F(x) decreases.

The graphs of the other functions are all increasing exponential functions. This is because the bases of the exponents, 2, 5, and 1.4, are all greater than 1. As x increases, the value of [tex]2^x[/tex], [tex]5^x[/tex], and [tex]1.4^x[/tex] increases, so the value of the functions F(x) = 2 * [tex]2^x[/tex], F(x) = 2 * [tex]5^x[/tex], and F(x) = 2 * [tex]1.4^x[/tex] increases.

Therefore, the graph of the function F(x) = 2 * [tex](0.7)^x[/tex] is the only graph that is decreasing. So the answer is A.

Here is a table that summarizes the properties of the graphs of the four functions:

Function Base of the exponent Graph

F(x) = 2 * [tex](0.7)^x[/tex] 0.7 (between 0 and 1) Decreasing

F(x) = [tex]2^x[/tex] 2 (greater than 1) Increasing

F(x) = 2 * [tex]5^x[/tex] 5 (greater than 1) Increasing

F(x) = 2 * [tex]1.4^x[/tex]  1.4 (greater than 1) Increasing

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2x+4 divided by 4 =8

Answers

Answer:

X = 14

Step-by-step explanation:

In pic

(Credits: Symbolab)

(Hope this helps can I pls have brainlist (crown)☺️)

WILL MARK BRAINLIEST
Translate into expression
One-half the difference of thrice a number and four

Answers

Answer:

[tex]3x - 4[/tex] ÷ [tex]\frac{1}{2}[/tex]

The population in Smalltown in 2010 was 45,230 people and is growing exponentially at a rate of 2%. What will the population be in 2030?

A) 67,209
B) 67,475
C) 81,928
D) 82,414

Answers

Answer:

Let P(t) = population t years after 2010

           = 45230e0.02t

Population in 2030 = P(20)

                           = 45230e0.4≈ 6747

Please Help Me

The ratio of the number of combinations (2n+2) of different objects taken n at a time to the number of combinations of (2n-2) of different objects taken n at a time is 99:7. Find the value of n.​

Answers

The expected value of n is 1.152

The question states that ratio of 2n+2 and 2n-2 = 99:7. This means that

2n+2:2n-2 = 99:7, this also means that

[tex]\frac{2n+2}{2n-2}[/tex] = [tex]\frac{99}{7}[/tex]

If that is so, we can cross multiply so that

99 * (2n - 2) = 7 * (2n + 2), on expanding the bracket, we have

198n - 198 = 14n + 14

198n - 14n = 14 + 198

184n = 212, dividing both sides by 184, we have

n = 212/184

n = 1.152

Therefore, the value of n is 1.152

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g(x)=-3x+2 and g(x)=-1, find x

Answers

Answer:

x=1

Step-by-step explanation:

ANSWER PLEASE AND PLEASE SHOW WORKING
ONLY ANSWER IF UR ARE ANSWERING THE QUESTION PLEASE​

Answers

Answer:

Step-1 : Multiply the coefficient of the first term by the constant   1 • 7 = 7  

Step-2 : Find two factors of  7  whose sum equals the coefficient of the middle term, which is   -8 .

     -7    +    -1    =    -8    That's it

Step-3 : Rewrite the polynomial splitting the middle term using the two factors found in step 2 above,  -7  and  -1  

                    x2 - 7x - 1x - 7

Step-4 : Add up the first 2 terms, pulling out like factors :

                   x • (x-7)

             Add up the last 2 terms, pulling out common factors :

                    1 • (x-7)

Step-5 : Add up the four terms of step 4 :

                   (x-1)  •  (x-7)

            Which is the desired factorization

Step-by-step explanation:

x = 7 or 1

On an escalator, you move 2 feet vertically for every 3 feet you move horizontally. When you reach the top of the escalator, you have moved a horizontal distance of 90 feet. Find the height of the escalator.

Answers

The height of the escalator is as calculated using trigonometric ratios.

We know that in a right angled triangle the trigonometric ratios are

tan θ = perpendicular ÷ base

For a right angled triangle the tanθ is defined as the ratio of the perpendicular to the base of the triangle . The side opposite the angle θ is the perpendicular and the side adjacent to the θ is the base .

Now it is given that for every 2 feet vertically moved the horizontal distance moved is 3 feet.

Now using the trigonometric ratio of tanθ

tan θ = 2 / 3

Now we will use this ratio to calculate the vertical height for horizontal movement of 90 feet .

Now, the height is given as h .

∴ tan θ = h / 90

or, 2 / 3 = h / 90

or, h = 60 feet

Therefore the height of the escalator is 60 feet.

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alguien que me diga como se saca la X en ecuaciones cuadraticas porfaaaaaaaaa

Answers

Answer:

lol

Step-by-step explanation:

to get x in quadratic equations, factor it

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