2x – 5 = 7 to 2x = 12 What property of equality was used?

Answers

Answer 1

Property of Addition and division.


Related Questions

Write the exponent for the expression.2.78

The exponent for the expression is ___

Answers

Answer:

The exponent for the expression is -8

Step-by-step explanation:

12345689 I just need points

What is 7.4 + ? = 1.

Answers

?= -6.4. The number, negative 6.4 would go where the question mark is.

Solve for z. 12=15(z-1/5)​

Answers

Z=0.6 or 3/5

Distribute
12=15z+3
Subtract the 3
9=15z
Divide by 15
0.6=z

Answer:

1

Step-by-step explanation:

First, Distribute

Then, add 3 to both sides

Then, Divide 15 from both sides

1=Z

I dont think this is right PLEASE HELP ASAP!!!! thank you so so so much!!! *will give brainliest*

Answers

Answer:

i got -2.093 repeating

Step-by-step explanation:

multiply -2 and 3.14 then divide by - 3 sorry if not right

What is the equation of a line that passes through (1,2) and has a slope of 7?
Write your answer in the slope -intercept format, y=mx+b.
Pls help

Answers

ANSWER: y=7x-5 i put it in a graphing calculator

can someone help me on this please :) ​

Answers

9514 1404 393

Answer:

x = 6y = 18

Step-by-step explanation:

The applicable rules of exponents are ...

  (a^b)/(a^c) = a^(b-c)

  (a^b)^c = a^(bc)

__

  [tex]\left(\dfrac{a^3b^4}{a^2b}\right)^6= (a^{3-2}b^{4-1})^6 =a^{1\cdot6}b^{3\cdot6}=\boxed{a^6b^{18}}[/tex]

Comparing to the given form, we see x=6, y=18.

* Find the length of BD.
A

Answers

9514 1404 393

Answer:

  BD = 17

Step-by-step explanation:

The Pythagorean theorem can be used twice:

  BC^2 + AC^2 = AB^2

  BC = √(AB^2 -AC^2) = √(25^2 -24^2) = √49 = 7

__

Likewise, ...

  DC = √(AD^2 -AC^2) = √(26^2 -24^2) = √100 = 10

Then ...

  BD = BC +DC = 7 + 10

  BD = 17

The missing number in the arithmetic sequence 60, 51, ___, 33 is:

Answers

Answer:

42

Step-by-step explanation:

In this question, we have the find the rate of change in the sequence.

To find this, we need to find how much the sequence is changing by.

We know from 60 to 51 is -9, so we know that our sequence is changing by -9.

To find our unknown number, we would subtract 9 from 51.

51 - 9 = 42

Our missing number in the sequence is 42.

We can check our answer by subtracting 9 from 42. This gives us our next number, which is 33.

42 would be your answer.

Work out these approximate conversions. 8 miles=..... km​

Answers

Answer:

12.87 km

Step-by-step explanation:

searched it up

Erwin earns $ 2 , 100 per month. Her deductions amount to 26 % of her paycheck. How much does Erwin take home each month?

Answers

Answer:

Credit ⇒ 45

Debit ⇒ $30

Step-by-step explanation:

Credit = $45

Debit = $30

When an account balance increases it means that it has been credited and when it decreases, it has been debited.

The beginning balance here is $0 and the closing balance is $15.

There were 2 transactions, one credit and one debit.

For the closing balance to be $15, the Credit amount must have been $15 more than the Debit amount.

8 * 6 + (12-4) / 2 equals to what

Answers

Answer:

52

Step-by-step explanation:

Simplify the expression (Steps shown below).

Are the ratios 1:2 and 8:20 equivalent?

Answers

Answer:

Nah

Step-by-step explanation:

8:20=2:5

1:2 is not equal to 2:5

Help me please 9w+4= 2w+32

Answers

Answer:

w=4

Step-by-step explanation:

9w+4=2w+32

-2w     -2w

7w+4=32

     -4   -4

7w=28

w=4

Answer:

w = 4

Step-by-step explanation:

How to solve...

You have your equation 9w + 4 = 2w + 32, now you take 4 and subtract on both sides, so you will subtract it to 4 and 32. You get 28 as your answer. Now leave that alone, next you will take 2w and subtract it on both sides, when you subtract 2w to 9w you will get 7w. Now just do 28 divided by 7, which is 4. So w = 4. Hope this helps!

9w + 4 = 2w + 32

       - 4 =        -   4

--------------------------

     9w = 2w + 28

    -2w = -2w + 28

---------------------------

     7w = 28

     7w = 7w

---------------------------

       w = 4

I need help- I’ll give brainlist if it’s right

Answers

Answer:

D.  x>[4]

Plzzzzz give me Brainliest!!!!!  

Answer:

D. x > 4

Step-by-step explanation:

You have to do the opposite operations to get the variable on one side of the equation by itself.

4 - x + 4 = 8 - 4

x = 4

You only switch the comparison sign if you mutliply or divide by negative numbers when you do opposite operations to get the variable on one side of the equation by itself.

I hope this helps!

Tina has $24.00 in coins and is putting them into piles of $0.03. How many piles will she have?

Answers

Answer:

800 I think I think I think or I know

What are all the variables of x y and z ?

Answers

Answer:

x°=96°

y°=88°

z°=151°

Step-by-step explanation:

55°+29°+×°=180°

×°=96°

96°+55°=z°

z°=151

then let variable A° be one of the inner angle of the triangle

A°+z°=180°

A°+151°=180°

A°=29°

finally adding all the inner angles will give us 180°

96°+y°-13°+29=180°

y°=88°

Solve for x. 5 = 1/5x -3​

Answers

Answer:

40.

Step-by-step explanation:

5=1/5x-3

8=1/5x

40

Brainliest PLS

what does it mean by a variables​

Answers

Answer:

variables

Step-by-step explanation:

variables are constantly variating to contour to the problem it is being used in like in rentals, the variable is the amount of hours rented and the constant is the price it's being rented for

PLEASE HELP | WILL GIVE BRAINLY IF RIGHT | LOOK AT IMAGE

Answers

Answer:

Town C

Step-by-step explanation:

the answer is town C

30 points! See pic attached. Will mark brainliest.

Answers

Answer:

Step-by-step explanation:

i think it a c e i hope this helps :^

answer: D,B,C

Step-by-step explanation:

line A is perpendicular to B and line A and B is parallel to line C

Calculate the length of the diagonal, d, of this cylinder

Answers

the answer is 10ft hope this helps!

Samantha makes a conjecture that the product of two odd integers is always an odd integer. Which choice is the best proof of her conjecture? CLEAR CHECK Look at these different examples: 7 × 3 = 21, 5 × 9 = 45, 11 × 3 = 33. So the product of two odd numbers must be odd. Every time you multiply two odd numbers, the product is an odd number. Let (2a + 1) be an odd number. Let (2b + 1) be another odd number. The product 2(2ab + a + b) + 1 is a multiple of 2 plus 1, which is an odd number. Let a and b both represent odd numbers, and let a × b be an odd number. Therefore, a × b = b × a, which shows that the product of two odd numbers is odd.

Answers

Answer:

Let (2a + 1) be an odd number. Let (2b + 1) be another odd number. The product 2(2ab + a + b) + 1 is a multiple of 2 plus 1, which is an odd number.

Step-by-step explanation:

8cm
20cm
What is the volume of this cylinder?

Answers

Answer:

4021.2386 cm ^3

Step-by-step explanation:

V = πr2h = π·82·20 = 4021.2386 cm ^3

Write the ratio of the first measurement to the second measurement. Compare in millimeters Diameter of ball A: 33mm Diameter of ball B: 5.4 cm

Answers

Answer:

The ratio of first measurement to second measurement in millimeters is 11:18

Step-by-step explanation:

Given that:

Diameter of ball A = 33 mm

Diameter of ball B = 5.4 cm

1 cm = 10 mm

5.4 cm = 10*5.4 mm

5.4 cm = 54 mm

Ratio of diameter of ball A to diameter of ball B.

33 : 54

Simplifying the ratio

11 : 18

Hence,

The ratio of first measurement to second measurement in millimeters is 11:18

i^2=√-1 true or false

Answers

Answer:

im pretty sure its true :)

Step-by-step explanation:

Have a good day sorry if its wrong

Answer: True

Step-by-step explanation: i^2=-1

-1 = \sqrt{-1}

Find the slope of the line graphed below.
-

Answers

Step-by-step explanation:

1st point=(-2,2)x1=-2,y1=2

2nd point=(3,-2)x2=3,y2=-2

slope=y2-y1/x2-x1

According to the question,

slope=-2-2/3-(-2)=-4/5

Please help me please due today

Answers

Answer:

2

Step-by-step explanation:

Use the method [tex]\frac{rise}{run}[/tex].

Both points are 3 across (run), and 6 up (rise).

Plug it in and divide the numbers.

6/3 = 2

Hence, m equals 2.

Simply each expression
1) 2x+5-3x
2) -(w-2)

Answers

Answer:

1) -x+5

2)-w+2

Step-by-step explanation:

2x+5-3x Combine.

-x+5

-(w-2)

-w+2

Which costs the last per ounce, a 20 ounce soda for $0.60, 68 ounce for $2.38, or 100 ounce for $3.32? Explain how you got your answer.

Answers

9514 1404 393

Answer:

  20 oz for $0.60

Step-by-step explanation:

You can determine the least-cost item by comparing costs at the same size. (This can be done using mental arithmetic.)

68 ounces is between 3 and 4 times the size of 20 ounces. If the costs were the same, 68 ounces would cost between 3·$60 = $1.80 and 4·$60 = $2.40. The cost of 68 ounces is closer to $2.40 than 68 is to 80, so we conclude the 20-ounce soda costs less.

The cost of 100 ounces at the 20-ounce price would be 5·$0.60 = $3.00, which is less than the cost of the 100-ounce soda. Again, the 20-ounce soda is cheaper.

The least cost per ounce is the 20-ounce soda.

__

If you like, you can actually find the cost per ounce by dividing the cost by the ounces. Those results are shown in the attached table. The 20-ounce soda costs the least.

5/7 + 2/3

Plz Answer

Answers

Answer:

29/21

Step-by-step explanation:

5/7 = 15/21

2/3 = 14/21

Answer:

1.38 or  1 and 1/7

Step-by-step explanation:

5/7 + 2/3

10/21 + 14/21= 24/21

then your have to divide 24 by 21 = 1 and 3/21

then simplify 1 1/7

does this help?

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