Mathematics High School

Jerry solved the equation 2x-4=20 by adding four 1-tiles to each side. Explain why Jerry's method works.

Answers

Answer 1

Answer:

Kindly check explanation

Step-by-step explanation:

Given the equation : 2x-4=20

By adding 4 1 - tiles to each side, this will eleminate the constant term on the left hand side where the Coefficient we wish to solve for lies. Hence, the same exact treatment given to data on the right hand side is done to the data in the left. Hence, the method will work as it will give ;

2x - 4 = 20

2x - 4 + 4 = 20 + 4

2x = 24 ( constant eliminated)

x = 24/4

x = 6

Related Questions

6y - 3 - 2y = -3

(substitution)

Answers

Answer:

y = 0

Step-by-step explanation:

9. Madeline and Jonathan want to purchase a home in six years. They will contribute $540 every six months to a savings account with 5.25% Interest, compounded quarterly. What is the future
value of this Investment, when Madeline and Jonathan need to make a down payment? (4 points)
O $7,559.06
O $15,118.11
$7,502.45
$7,658.27

Answers

c is correctttttttttttt

1/3 HB=T solve for B​

Answers

Answer:

yes I agree B=3t/h

Step-by-step explanation:

hope this helps :)

Giving brainliest if answered correctly!

At Bakersfield High School, each senior class purchases a monument in the shape of a triangular prism to display the names of the entire senior class. The dimensions of the monument are shown below.

What is the total surface area of the monument?

660 square inches
630 square inches
690 square inches
600 square inches

Answers

Answer:

hello! you didnt put the dimensions. i would love to help but i dont have the info. you can comment the infor below!

Help Please Brainlist if correct (dont answer if you dont know please)

Answers

Answer:

The answer is 6.8

Step-by-step explanation:

Check on your calculator 6.8^2 equals 46

regan's website had 7 links on each of 9 pages. how many links did she have on her website? i need equation and solution!!

Answers

Answer:

63

Step-by-step explanation:

all you need to do is 9*7

Please help please I need to know this

Answers

Answer: X=19

Step-by-step explanation:

Add up everything and set it to 180 degrees so (5x+4)+(x-2)+(3x+7)=180

next 9x+9=180

then 9x=171

x=19

If you want to check by pluggin in value for x for all angles and it should equal 180 added up

Angle POS= 99

Angle SOR= 17

Angle ROQ= 64

99+17+64=180 degrees

Answer:

i have made it in above picture

hope it helps

Hiiiooo!! Can someone please help me ❤️❤️❤️

Answers

Answer:

8

Step-by-step explanation:

40 ÷ 5 = 8

56 ÷ 7 = 8

so then just divide 64 by the one we know, which is 8

64 ÷ 8 = 8

I need help on this one too and im done! someone please help me!​

Answers

SA= 49.5 (m but it says no units)

Explanation: find the area of one of the triangles, A=(b*h)/2, and then one of the rectangles, A=l*w. Multiply the triangles area by two, there are two triangles. Multiply the rectangles areas by three, there are three rectangles. I’ve included calculations in the picture below.

A rectangular garden has a length that is 4 feet longer than its
width. The entire garden is surrounded by a 1-foot-wide decorative
brick pattern on the ground. Write an expression for the total area
of the garden and decorative brick pattern.

Answers

Answer:

(W + 4) = L

W = W

(W + 4) * W

Step-by-step explanation:

Kenneth has 45 Pokemon cards. He gave 3/9 of his cards to his friend as a random act of kindness. How many cards did he give his friend? m​

Answers

Answer:

15 pokémon cards

Step-by-step explanation:

45*3 /9= 135/9 = 15

Or you can simplify

3/9=1/3

45*1/3=15

Answer:

15

Step-by-step explanation:

45/9=5 5*3=15

I divide 45 by 9 to see how much card 1/9 is

Sam put a 12-inch ruler into a cup. If 3 inches of the ruler were sticking out of the top of the cup, how deep was the cup?

Answers

Answer:

9 inches deep

Step-by-step explanation:

12 inches - 3 inches = 9 inches

Which expression is equivalento = 92 +12) +41 +62
- - -
BT2 = 10
13
32=5
131 - IS
ASAP

Answers

Answer:

i dont understand

Step-by-step explanation:

please helppp me anyone​

Answers

Answer:

7

Step-by-step explanation:

HELP I NEED HELP ASAP
HELP I NEED HELP ASAP
HELP I NEED HELP ASAP

Two numbers have a sum of 76 and a difference of 8. What is the larger number?

A. 34
B. 46
C. 68
D. 42

Answers

Answer:

46,42

( I hope this was helpful) >;D

if y varies inversely as x and y=-11 when x=1, what is y when x =11?

Answers

Answer:

I thinks it is -11

Step-by-step explanation:

pls help i will give you like and brainliest if you are correct!!!

Answers

Answer:

+9.2=7.6x

x+9.2=38x

______

5

Solution

=1.393939393

i need help on this question can anyone please help me

Answers

9514 1404 393

Answer:

  p = -9 5/9

Step-by-step explanation:

Undo what is done to p.

Multiply by 2.

  p +10 = 4/9

Subtract 10.

  p = 4/9 -10

  p = -9 5/9


Conor has $200 available to buy software
packages to run updates on his employee
computers. Each software package has a
price of $12, and Conor will pay a sales tax
of 8% of the total price of the software.
What is the maximum number of software?

packages Conor can buy?

Answers

Don’t go to that link it is a virus it’s a bot doing that do not go to that link

For each diagram, decide if y is an increase or a decrease of x. Then determine the
percentage.
A
у
B
у

Answers

Answer:

A: Decrease, y is 80% of x

B: Increase, y is 160%of x

Step-by-step explanation:

It sounds like it wants to know what percent Y is of X, so if y was 50% of x, that would mean y was half as much of x. so if x was 10 and y was 5

A:  x is 5 and y is 4  since y is less it is a decrease.  to find the percent do 100*y/x, so in this case that's 100*4/5 =80, so y is 80% of x.  and it makes sense it is less than 100% since x is less than y

B: x=5 and y=8  y is greater than x so it is an increase and will be more than 100%.  100*8/5 = 160 so y is 160% of x

In ΔDEF, the measure of ∠F=90°, the measure of ∠D=39°, and FD = 9.8 feet. Find the length of EF to the nearest tenth of a foot.

Answers

Answer:

14.2 ft

Step-by-step explanation:

what 50 precent of 7

Answers

Answer:

3.5

7 divided by 50=3.5

3.5x2=7

Step-by-step explanation:


I need help asap please

Answers

Answer:

x = - 69

Step-by-step explanation:

if its wrong i can help u again

I’m pretty the answer would be -69

(2x + 4) + (-7 - 3b) + (5 - 8x)
)
Please help

Answers

Answer:

Step-by-step explanation:

First, open the brackets.

(2x + 4) + (-7 - 3b) + (5 - 8x)

= 2x + 4 -7 - 3b + 5 -8x

Simplify the like terms.

= 2x - 8x - 3b + 4 -7 + 5

= -6x - 3b + 2

What is the slope of the line that contains the points (10,-9) and (7,6)?

Answers

Answer:

-5

Step-by-step explanation:

Slope, m, can be found by

change in y / change in x

change in y = 6 - -9 = 15

change in x = 7 - 10 = -3

m = 15/-3 = -5

full line is y = -5x + 41

Almonds cost $12 per 3 pounds. How many pounds can I buy with $20?

Answers

Answer:

6 pounds

Step-by-step explanation:

Answer:

5 pounds

Step-by-step explanation:

12 divided by 3 = 4

20 divided by 4 = 5

B-30.45=95.28 what is the answer

Answers

Answer:

[tex]B = 125.73[/tex]

Step-by-step explanation:

Step 1:  Add 30.45 to both sides

[tex]B - 30.45=95.28[/tex]

[tex]B +(- 30.45 + 30.45)=(95.28 + 30.45)[/tex]

[tex]B = 125.73[/tex]

Answer:  [tex]B = 125.73[/tex]

I need the answer ASAP

Answers

You can use Photomath

What is the coefficient in the variable term 7x?

Answers

Answer:

7

Step-by-step explanation:

the coefficient is the number that is multiplied by x which in the case of 7x is 7

Hope that helps :)

4 2/3 - 3 1/8
Leave your answer as a mixed fraction

Answers

Answer:

Here.is the answer.

Step-by-step explanation:

Hope it helps.....

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