-2 (3a – 2) = 1/3(7 – 3a)

Answer: 5/12

Step-by-step explanation:

Our common denominator is 60.

25 * 27 = 675

675 / 45 = 15

40 - 15 = 25

Since our denominator is 60, 25/60 is our answer.

25 / 60 simplified is 5 / 12.

hope this helps

Ok so here you go..

He takes 8 minutes to ring up 2 costumers

In 1 minute,he will ring 2/8 customers

In 30 minutes= 2/8 *30= 7.5

The answer doesn't make sense so maybe your data is incorrect

Answer:

c=πd

Step-by-step explanation:

Circumference= pi * diameter

Answer:

im dumb too just a little

Answer: 2 perpendicular line and 180 degrees rotational symmetry

Step-by-step explanation:

I just did it

Answer:

Step-by-step explanation:

Gross pay means the amount of money you get without any tax reductions.

40 * 11 = $440

Find the value of all the taxes.

440 * 0.15 = $66

440 * 0.08 = $35.20

440 * 0.07 = $30.80

Net pay means the amount of money you get with tax reductions.

440 - 66 - 35.20 - 30.80 = $308

Best of Luck!

Answer:

k = -3

Step-by-step explanation:

Step 1: Write equation

11 = -3k - 22 - 8k

Step 2: Solve for x

Step 3: Check

Plug in k to verify it's a solution.

11 = -3(-3) - 22 - 8(-3)

11 = 9 - 22 + 24

11 = -13 + 24

11 = 11

Answer:

[tex]x=58[/tex]

Step-by-step explanation:

First, remember that the maximum degree of an angle totals 360°.

Since we already have 294°, this means that what is left must total [tex]360\textdegree - 294\textdegree= 66\textdegree[/tex].

Therefore, this means that our two smaller angles must equal 66°. So:

[tex](36)+(x-28)=66[/tex]

Solve for x. Add on the left:

[tex]x+8=66[/tex]

Subtract 8 from both sides. Therefore, the value of x is:

[tex]x=58[/tex]

Given problem:

  Write 4.2678 x 10⁵ in decimal form;

   Solution

   To do this simply multiply by 100000 or move the decimal the right in five places.

  4.2678 x 10⁵;

            4.2678 x 100000 = 426780

The answer is 426780

If the exponent is a negative power, move the decimal to the left.

Answer:

265

Step-by-step explanation:

Answer:

265

Step-by-step explanation:

53*5  (its not that hard man)

Answer:

-269,380

Step-by-step explanation:

Answer:

-269380

Step-by-step explanation:

Lets break this down.

So, if you add up all the money, that would be 61.35. That leaves you with 1.35.

Next, to find how much she payed, you have to think, theres a one dollar bill, 5 dollar bill, 10 dollar bill, and so on.

So if you think about the left over change, and add it to the extra 1.35 it would be 10!

Hence, your answer is 10 dollars.

The money Tonya borrowed from her friend to pay for all the items is $10.

Given that, tonya bought a blanket for 33.35, a pillow for 11.25, and gloves for 16.75. She paid 60 and the rest she borrowed from her friend and she got 8.65 change from the cashier.

We need to find the money she borrowed from her friend to pay for all the items.

Equations are mathematical statements containing two algebraic expressions on both sides of an 'equal to (=)' sign. It shows the relationship of equality between the expression written on the left side with the expression written on the right side. In every equation in math, we have, L.H.S = R.H.S (left hand side = right hand side). Equations can be solved to find the value of an unknown variable representing an unknown quantity.

Let the money paid to the cashier be x.

Now, the total cost of the items=33.35+11.25+16.75

=$61.35

So, x=61.35+8.65

=$70

The money she borrowed from friend=70-60=10

Therefore, the money Tonya borrowed from her friend to pay for all the items is $10.

To learn more about an equation visit:

brainly.com/question/1529522.

#SPJ2

Answer:

aquí es cómo

Step-by-step explanation:

Convertir el número decimal a fracción colocándolo sobre una potencia de diez. Como hay 2 números a la derecha del punto decimal, coloque el número decimal sobre 10 ^ 2 (100). Luego, agregue el número entero a la izquierda del decimal.

espero que esto ayude.

Si puede, no dude en marcarme como Brainliest, sería muy apreciado :D

Answer:

3

Step-by-step explanation

Q and R are already given to you so you just have to look

Answer: Algebraic: 15-22

Simply:-7

Step-by-step explanation:

Less than means to take away from, so in this case we are taking away 22 from 15

Answer:

wow left handed i can't try that i'm very bad at throwing left handed plus he got closer more times then his right wait no she

Step-by-step explanation:

Answer:

The left hand is more accurate.

Step-by-step explanation:

If you look at the graph, it will look like the right hand is more accurate, due to the fact that it has a closer distance than the left. However, the right hand actually never have hit the target while the left did more than once.

Answer:

D

Step-by-step explanation:

Hope this helps:)

Answer:

Graph B is a function

Step-by-step explanation:

Hope this helps

Plz mark brainliest

Answer:

Fifth Score = 87

Sixth Score = 95

Step-by-step explanation:

Given

[tex]Average = 85[/tex]

[tex]Scores = 83, 78, 87, 80[/tex]

[tex]Fifth\ score = x[/tex]

[tex]Sixth\ Score = 8 + x[/tex]

Required

Set up an equation

Solve for the fifth and sixth score

Average is calculated as thus:

[tex]Average = \frac{\sum x}{n}[/tex]

[tex]Average = \frac{83 +78 + 87 + 80 + x + 8 + x}{6}[/tex]

Substitute 85 for Average

[tex]85 = \frac{83 +78 + 87 + 80 + x + 8 + x}{6}[/tex]

[tex]85 = \frac{83 +78 + 87 + 80 + 8+ x + x}{6}[/tex]

[tex]85 = \frac{336+ 2x}{6}[/tex]

Multiply both sides by 6

[tex]85 * 6 = 336 + 2x[/tex]

[tex]510= 336 + 2x[/tex]

Solve for 2x

[tex]2x = 510 - 336[/tex]

[tex]2x = 174[/tex]

Solve for x

[tex]x = 174/2[/tex]

[tex]x = 87[/tex]

Hence:

[tex]Fifth\ Score = 87[/tex]

[tex]Sixth\ Score = 87 + 8[/tex]

[tex]Sixth\ Score = 95[/tex]

Answer:

a) 0.011

b) 0.0032

Step-by-step explanation:

first lets say A₁ denotes the event that first inspector detects a flaw and A₂ is event that the law will be detected by the second inspector,

also let B denote the event that an item has a flaw.

a)

Given that;

P(B) = 0.1

so

P(A₁ / B ) = 0.9,  P(A₂ / B ) = 0.7

using Baye's rule, the probability that an item has a flaw if it was passed by the first inspector is;

P(B / A₁ⁿ ) =  [P(A₁ⁿ / B ) P(B)] / [ P(A₁ⁿ / B ) P(B) + P(A₁ⁿ / Bⁿ ) P(Bⁿ) ]

the probability that the first inspector will not detect the flaw if it actually exist is;

P(A₁ⁿ / B ) = 1 - P(A₁ / B )

= 1 - 0.9

= 0.1

Since there are no false detections, the probability that the first inspector will not detect the flaw, given that item does not have flaws is;

P(A₁ⁿ / Bⁿ ) = 1.0

so the probability that the item has flaw if it was passed by the first inspector is;

P(B / A₁ⁿ ) =  [(0.1) (0.1)] / [ (0.1 ) (0.1) + (1.0) (1 - 0.1) ]

= 0.01 / ( 0.01 + 0.9)

= 0.01 / 0.91

= 0.011

b)

Also by Bayes rule, the probability that the item has a flaw if it was passed by both inspectors is;

P(B / A₁ⁿ ∩ A₂ⁿ) =  [ P(A₁ⁿ ∩ A₂ⁿ / B) P(B)] / [ P(A₁ⁿ ∩ A₂ⁿ / B) P(B) + P(A₁ⁿ ∩ A₂ⁿ / Bⁿ) P(Bⁿ)]

Now since inspectors function independently, the probability that both inspectors will not detect the flaw if it actually exists is;

P(A₁ⁿ ∩ A₂ⁿ / B) = P(A₁ⁿ / B) P(A₂ⁿ / B)

= ( 1 - 0.9 ) ( 1 - 0.7)

= 0.1 * 0.3

= 0.03

since there are no false detections, the probability that both inspectors will not detect the flaw, given that item does not have a flaw is;

P(A₁ⁿ ∩ A₂ⁿ / Bⁿ) = 1.0

therefore

the probability that the item has a flaw if it was passed by both inspectors is;

P(B / A₁ⁿ ∩ A₂ⁿ) = [(0.03)(0.1)] / [(0.03)(0.1) + (1.0)(1-0.1)

= 0.003 / 0.93

= 0.0032

Answer:

the first graph

Step-by-step explanation:

Answer:

The first graph A)

Step-by-step explanation:

Hope this helps whoever needs it!

Answer:

dy/dx = e⁻²ᵗ (1 − t)

d²y/dx² = -e⁻³ᵗ (3 − 2t)

(1.5, ∞)

Step-by-step explanation:

x = eᵗ

y = te⁻ᵗ

dx/dt = eᵗ

dy/dt = -te⁻ᵗ + e⁻ᵗ

dy/dt = e⁻ᵗ (1 − t)

dy/dx = (dy/dt) / (dx/dt)

dy/dx = e⁻ᵗ (1 − t) / eᵗ

dy/dx = e⁻²ᵗ (1 − t)

d²y/dx² = d(dy/dx)/dt / (dx/dt)

d²y/dx² = (-e⁻²ᵗ − 2(1 − t) e⁻²ᵗ) / eᵗ

d²y/dx² = -e⁻²ᵗ (1 + 2(1 − t)) / eᵗ

d²y/dx² = -e⁻³ᵗ (3 − 2t)

The function is concave up when the second derivative is positive.  -e⁻³ᵗ is always negative, so the second derivative is positive when 3 − 2t is negative.

3 − 2t < 0

3 < 2t

t > 3/2

Or, in interval notation, (1.5, ∞).

Answer:

6=4 1/6+10 1/6

Step-by-step explanation:

here ya go!!!!

6=-4 1/6+b

4 1/6+6=10 1/6(this is b)

4 1/6+(-4 1/6)(these cross out)

sooo

6=-4 1/6+10 1/6

Answer:

2/3 and 6/9

Step-by-step explanation:

you can just ÷ the fractions to turn them to decimals

2÷3=0.6666666667 and 6÷9=0.6666666667 they are the same so they are equivalent.

Answer:

8,000

Step-by-step explanation:

the nearest thousand is 8,000 as it is past 7,500.

Hi!

Your answer will be: 8,000.

hope this helps!

Answer:

2^5

Step-by-step explanation:

2^4 × 2^6 ÷ 2^5

= 2^10 ÷ 2^5

=2^5