Identify the functional relationship between the variables. * 1 point
A. Energy use is a function of time.
B. Time is a function of energy use.

Answer:

8

Step-by-step explanation:

4x - 9 = 2x + 7

4x - 2x = 7 + 9

2x = 16

x = 16 / 2

x = 8

Here, we are given with an equation in which we are given with some constants and two same variables x. We are said that the LHS and RHS are equal to each other. We are asked to find the value of the variable x. To find the value of x, we use an other concept which helps us to find the value of x and also to verify our answer. This concept is called as the transposition method. While using this method, the sign of the appropriate number or variable changes. We use this method to shift the numbers and variables on two separate sides. We can also verify our answer at the end of our answer by verification method. So, let's solve!!

[tex]\:[/tex]

[tex]{\sf \leadsto 4x - 9 = 2x + 7}[/tex]

Shift the variable value to LHS and the constant value to RHS, changing it's sign.

[tex]{\sf \leadsto 4x - 2x = 7 + 9}[/tex]

Subtract the values on LHS and add the values on RHS.

[tex]{\sf \leadsto 2x = 16}[/tex]

Shift the number 2 from LHS to RHS.

[tex]{\sf \leadsto x = \dfrac{16}{2}}[/tex]

Simplify the fraction to find the value of x.

[tex]{\sf \leadsto x = 8}[/tex]

[tex]\:[/tex]

[tex]{\red{\underline{\boxed{\bf So, \: the \: value \: of \: x \: is \: 8.}}}}[/tex]

━━━━━━━━━━━━━━━━━━━━━━━

[tex]{\sf \leadsto 4x - 9 = 2x + 7}[/tex]

Substitute the value of x.

[tex]{\sf \leadsto 4(8) - 9 = 2(8) + 7}[/tex]

Multiply the numbers in the bracket.

[tex]{\sf \leadsto 32 - 9 = 16 + 7}[/tex]

Subtract the values on LHS and add the values on RHS.

[tex]{\sf \leadsto 23 = 23}[/tex]

So,

[tex]{\sf \leadsto LHS = RHS}[/tex]

Answer:

2,520 - 140x

2,520 - 140(2) = 2,240

2,520 - 140(5) = 820

(etc etc)

Step-by-step explanation:

This equation can handle any numbers.

Answer:

1. 2520 - 140x

Add up the minutes

2+5+8+10+15=40

Subsitute x for 40 minutes.

2. 2520 - 140(40)

I hope this makes sense!

Answer:

5/4 is the answer

Step-by-step explanation:

Answer:

The answer is A

-6[4 2/3]

= -6[4+2/3] because 4 2/3 is 4 and 2/3rds

so a(b+c) = a(b) + a(c)

so -6(4) + -6(2/3)

Answer:

If only numerator found as zero the answer would be zero. If only denominator found as zero the answer is undefined. In your situation both are zero. But, when denominator becomes zero the answer always be undefined. Therefore, your answer is undefined when both numerator and denominator are zeros.

Answer:

it is 4a-9....................

Answer:

Distance problems are word problems that involve the distance an object will travel at a certain average rate for a given period of time.

The formula for distance problems is: distance = rate × time or d = r × t.

Step-by-step explanation:

I think that is the answer bc?

Answer:

B

Step-by-step explanation:

make sure calculator is in degrees mode and insert equation to get -7.5

Answer:

24 degrees

Step-by-step explanation:

doesn't matter how you set up the fractions, just make sure the degrees are both on top or both on bottom

3°/1 hr = ?°/8 hours

cross multiply

3 x 8 = ? x 1

24 = ?

Answer:

9.699 Rounded to the nearest hundredth is 9.70

Could also be written as 9.700

Answer:

x=yW+yz

Step-by-step explanation:

Answer:

1/4°

Step-by-step explanation:

Hence it's 1/4

Answer:

717.8 inches

Step-by-step explanation:

Answer:

[tex](F)= \frac{9}{5} [/tex]

Answer:

3 tablespoons

Step-by-step explanation:

The ratio is 1tsp of salt:1 cup of flour

if she is using three cups of flour the increase would be times 3 therefor she uses 3(1)tsp of salt. (3 table spoons)

Answer:

 400

-325

  75

75 ÷ 15 = 5

It is 5 pounds over the 50 pound limit.

Answer:

1/2

Step-by-step explanation:

Since there is a 100% probability (1) that the result can be either heads or tails , and since we are taking about 2 results the answer is 1/2

Answer: 272 boys

Step-by-step explanation:

16:28 can be simplified

4:7

Divide the total # of students by 7 then multiply it by 4

476/7 = 68

68 x 4 = 272

I agree with the other answer

Answer: 272 boys

Step-by-step explanation:

16:28 can be simplified

4:7

Divide the total # of students by 7 then multiply it by 4

476/7 = 68

68 x 4 = 272

-All credits to the other user (image attached)

Answer:

Yep, they are all correct

Step-by-step explanation:

I have not seen your previous post but am assuming you want me to check

1. Number one is correct, when we simplify the both of them, they are correct pr the same value. 1.5 = 1.5

2. Number two is also correct 38=38

3. And number three is also correct 2.4 = 2.4

All in all, all of them are correct, good job :)

Answer:

-2, 3

Step-by-step explanation:

yeah that's it I don't have any explanation or formula

let the numbers be x and y

xy = -6

x + y = 1

from x + y = 1

y = 1 - x

x(1 - x) = -6

x - x² + 6 = 0

-x² + x + 6 = 0

on solving,

x = -2 or x = 3

y = 1 - (-2) = 3

y = 1 - 3 = -2

x1 = -2, y1 = 3.

x2 = 3, y2 = -2.

Answer:

5x – 10 > 20 it could be 6

5x – 10 ≤ –15 = x< or equal to -1

Step-by-step explanation:

hope you like my answer its x >6 and x ≤-1

Answer:

43,81

Step-by-step explanation:

sin ? = 9/13

sin ?= 43,81

[tex]35x( \frac{3}{7} = \frac{1}{5} + \frac{1}{x} ) \\ = > 35x \times \frac{3}{7} = > 35x \times \frac{1}{5} + 35x \times \frac{1}{x} \\ = > 5x \times 3 = 7x + 35 \\ = > 15x = 7x + 35 \\ = > 15x - 7x = 35 \\ = > 8x = 35 \\ = > x = \frac{35}{8} \\ = > x = 4.375[/tex]

x = 4.375

A-1hour in 36

B-16 min 12

Answer: 45

Step-by-step explanation:

5,10,15,20,25,30,35,40,45

9,18,27,36,45

Answer:

sure whats up i would love to help just tell me what u need help with.. :)

Step-by-step explanation:

Answer: 42

Step-by-step explanation:

I'd love to help but theres no question- and after all the answer to life, the universe, and everything is 42.

Answer:

i think the answer is 36.......