If you want to buy an item in a store that costs $24 and is on sale for 30% off, then how much would the item actually cost you after the discount? Round to the nearest cent.

Answer:

8x + 2y

Step-by-step explanation:

12x + 3y = 8 you need to transfer the no. 8 to left since it's positive, it will be negative once you tranfer that and the result is this 8x + 3y -8 =0. Then do it again on the second given, -4x = y + 8.

Tranfer the y variable to left, y is positive then it will be a negative. No need to transfer the no. 8. Then the result would be -4x - y + 8=0

To this solve this, wrote it like this:

12x + 3y –8

-4x - y + 8

——————

8x + 2y

Step-by-step explanation:

Answer:

cevap a çünkü 1+-1+-1+1= -2 yaparrr:))

Answer:

x=20

Step-by-step explanation:

Answer:

x=20

Step-by-step explanation:

Add 7 to both sides, x = 13+7 = 20

Answer:

17

Step-by-step explanation:

3x + x=68

68: 4= 17

Mikhail is 17

Answer:

16 mg

Step-by-step explanation:

[tex]N_0[/tex] = Initial mass of sample = 540 mg

t = Time taken = 2 years

[tex]t_{1/2}[/tex] = Half life of isotope

N = Final mass of sample = 300 mg

Radioactive decay is given by

[tex]N=N_0e^{-\dfrac{\ln 2}{t_{1/2}}t}\\\Rightarrow \ln\dfrac{N}{N_0}=-\dfrac{\ln 2}{t_{1/2}}t\\\Rightarrow t_{1/2}=-\dfrac{\ln2}{\ln\dfrac{N}{N_0}}t\\\Rightarrow t_{1/2}=-\dfrac{\ln2}{\ln\dfrac{300}{540}}2\\\Rightarrow t_{1/2}=2.358\ \text{years}[/tex]

In 2021 the number of years passed from 2009 would be 12 years

[tex]N=N_0e^{-\dfrac{\ln 2}{t_{1/2}}t}\\\Rightarrow N=540e^{-\dfrac{\ln 2}{2.358}12}\\\Rightarrow N=15.86\approx 16\ \text{mg}[/tex]

The expected mass of the sample in the year 2021 would be 16 mg.

Answer:

2.4 hours

Step-by-step explanation:

6×4=24

6x+4x=24

10x=24

x=24/10

x= 2.4hours they would work together

Answer:

3/2

1.5

1   1/2

Step-by-step explanation:

Answer:

Exact Form:

3

2

Decimal Form:

1.5

Mixed Number Form:

1

1

2

Step-by-step explanation:

Answer:

He drove 350 miles.

Step-by-step explanation:

I need points.

Brady drove 16.67 miles extra.

One type of operation in mathematics is division. We divide the expressions or numbers into the same number of components during this operation.

Given, Brady rented a car for two days at $25 a day plus $0.15 per mile.

His total bill is $102.50.

We divide the 102.50 by 25.

That means, 102.50 / 25

= 4 is quotient and 2.50 is remainder.

Now we divide 2.50 by 0.15

That means, 2.50 / 0.15

= 16.67 miles

Therefore, 16.67 miles, Brady drove.

For more information on the division, see ;

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Answer:

D

Step-by-step explanation:

2^(x-1)=11

(x-1)*ln(2)=ln(11)

x-1=ln(11)/ln(2)

x=ln(11)/ln(2)+1

get a calculator and evaluate this, you'll get

Step-by-step explanation:

hope this will help you.....

Given  [tex]f(x) = x^4 - 3x^3 + x -3[/tex]. The Limit of f (x) as x approaches negative 2 is 35.

A system of equations is two or more equations that can be solved to get a unique solution. the power of the equation must be in one degree.

It is Given that

[tex]f(x) = x^4 - 3x^3 + x -3[/tex].

The Limit of f (x) as x approaches negative 2

[tex]f(x) = x^4 - 3x^3 + x -3\\ f(-2) = (-2)^4-3(-2)^3+(-2)-3\\= 16+24-2-3\\= 35[/tex].

Learn more about linear equations;

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Answer:

Step-by-step explanation:

First simplify the equation (2x-3)-(x-1)

=(2x-3)-x+1

=(2x+3)-x-1

=2x-3-x-1

=x-2

Answer:

9.07 [Rounded]

Step-by-step explanation:

535 divided by 59 is 9.07, which I rounded.

The value of the division 535 ÷ 59 is 9 with a remainder of 4 and the decimal form can be expressed as 9.067.

To find the value of division 535 ÷ 59, we can perform a long division.

To perform the calculation, we can use long division:

59 ) 535 ( 9

     - 531

     ______

         4

Divide the first digit of the dividend (5) by the divisor (59). Since 5 is less than 59, we bring down the next digit, making it 53.

Divide 53 by 59. The result is 0, as 53 is less than 59.

Bring down the next digit, making it 535.

Divide 535 by 59. The result is 9, as 59 can go into 535 nine times.

Multiply 9 by 59, which equals 531.

Subtract 531 from 535, which gives us a remainder of 4.

Therefore, the value of the division 535 ÷ 59 is 9 with a remainder of 4.

In decimal form, the division can be expressed as 9.067, indicating that 59 goes into 535 nine times with a remainder of 4.

To learn more about the division operation click here :

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Find the value of the following division:

535÷59

Answer:

3[tex]\sqrt{5}[/tex] which is approx 6.71

Step-by-step explanation:

[tex]\sqrt{45}[/tex] = [tex]\sqrt{9}[/tex]·[tex]\sqrt{5}[/tex] = 3[tex]\sqrt{5}[/tex]

Answer:

Rectangle

Step-by-step explanation:

1 up and down and one side to side that makes two. Hope this helps!! Good Luck!!! :) :) :) :)

Answer:

y=5,2 and -3

we have to put the values of X and then solve the equation.

Answer:

The answer is B because if you take the line of y=-x (which you can look up on desmos if you don't know what y=-x looks like) and reflect over that line you can see that when the dot reflects over the line y=-x it goes to points (0,2)

Step-by-step explanation:

Answer:

92,000i think this is the answer

Answer:

1065 hours

Step-by-step explanation:

well all you gotta do is multiply 5x 213

Answer:

I need. help to

Step-by-step explanation:

i dont now i need help to

Think I just did this test

I'll add the other pic too'

Answer:

A = (2,1)

B = (4,2)

C = (5,3)

D = (6,6)

E = (4,6)

F = (3,4)

G = (1,6)

H = (6,0)

I = ( 0, 4)

Step-by-step explanation:

tips:

the format for coordinates is (x,y)

the horizontal line is the x axis, so you plot which number of x it lands on, like how A is on the second mark on the x axis.

The vertical line is the y axis, so you plot which number of y it lands onn like how A is on the first mark

Answer:

1840 minus 90

1750 divided by 7

Each chocolate pastry has 250 milligrams of sodium

Each pecan braid has 280 milligrams of sodium.

Arithmetic operations can also be specified by subtracting, dividing, and multiplying built-in functions.

The operator that performs the arithmetic operation is called the arithmetic operator.

Operators which let do a basic mathematical calculation

+ Addition operation: Adds values on either side of the operator.

For example 12 + 2 = 14

- Subtraction operation: Subtracts the right-hand operand from the left-hand operand.

for example 12 -2 = 10

* Multiplication operation: Multiplies values on either side of the operator

For example 12*2 = 24

/ Division operation: Divides left-hand operand by right-hand operand

For example 12/2 = 6

Given that each pecan braid has 30 more milligrams of sodium than each chocolate pastry

If 3 pecan braids and 4 chocolate pastries have a total of 1840 milligrams of sodium.

So, the number of milligrams of sodium present in chocolate pastry as

⇒ 1840 - 90

⇒ 1750

1750 milligrams of sodium are present in chocolate pastry.

Now, the number of milligrams of sodium present in chocolate pastry as

⇒ 1750/7

1750 divided by 7

Each chocolate pastry has 250 milligrams of sodium.

So, each pecan braid has 280 milligrams of sodium.

Learn more about Arithmetic operations here:

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Answer:

143 acres.

Step-by-step explanation:

To find how many acres of old-growth trees there are, we need to find what 0.2% of 73,000 is.

To find a percent of a number, multiply the percent by the number.

0.2% is equal to 0.002.

73,000 x 0.002 = 143

So, 143 acres of the forest is old-growth trees.

I would appreciate brainliest, if not that's ok!

Answer:

no se entiende la imagen

Answer:

La A

Step-by-step explanation:

Mentira no se ve nada solo escoge la D de Dios

h+8= -8

h=-8-8

h=(-16)

Hope it helps. Please mark brainliest.