How do you translate "Nine more than twice a number, w." as a variable expression.

After watching the video below, explain what is happening in your own words. What percent of the original dollar size will the 4

RSB [31]

Answer:

is there an image or something idk the vid

6 0

3 years ago

I=$24, P=$400, t=2 years The annual interest rate is %.

kolbaska11 [484]

So the right ans is 3%.

Look at the attached picture⤴

Hope it will help u...

8 0

3 years ago

Solve x^2 - x = 2 using the quadratic formula. Show your work.

lesya [120]

The quadratic formula is the result of completing the square for ax^2+bx+c=0 when a,b, and c are unknown values. This result is:

x=(-b±√(b^2-4ac))/(2a), we have x^2-x-2=0 so

x=(1±√(1+8))/2

x=(1±√9)/2

x=(1±3)/2

x=-1 and 2

8 0

3 years ago

Lee is staying at a hotel. The cost of the first night is $240. The cost for each night after that is $210. Let y represent the

sveticcg [70]

Answer:

The situation represents the arithmetic sequence

Step-by-step explanation:

∵ The cost of the first night is $240

∵ The cost of each night after the first is $210

∵ The number of nights is x

∵ The total cost of staying at the hotel x nights is y

∴ y = 240 + 210(x - 1)

Put x = 1 , 2 , 3, 4 and then check the type of the sequence

∴ y = 240 + 210(1 - 1) = 240

∴ y = 240 + 210(2 - 1) = 450

∴ y = 240 + 210(3 - 1) = 660

∴ y = 240 + 210(4 - 1) = 870

∵ The difference between each two consecutive terms are constant

(450 - 240 = 210 , 660 - 450 = 210 , 870 - 660 = 210)

∴ The sequence is arithmetic sequence

6 0

4 years ago

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Solve for x. x + 3x + 5 =21

timurjin [86]

Answer:

x=4

Step-by-step explanation:

In order to solve for x, we must isolate x on one side of the equation.

x+3x+5=21

First, combine like terms. x and 3x are both terms with variables, and can be combined.

(x+3x) + 5=21

4x + 5=21

5 is being added to 4x. The inverse of addition is subtraction. Subtract 5 from both sides of the equation.

4x+5-5= 21-5

4x= 16

x is being multiplied by 4. The inverse of multiplication is division. Divide both sides by 4.

4x/4=16/4

x= 16/4

x=4

Let's check our solution. Plug 4 in for x and solve.

x+3x+5=21

4+3(4)+5=21

4+12+5=21

16+5=21

21=21

This solution checks out, so we know our answer is correct.

x is equal to 4, x=4.

4 0

4 years ago

Read 2 more answers

How do you translate "Nine more than twice a number, w." as a variable expression.​

How do you translate "Nine more than twice a number, w." as a variable expression.