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

42
40
x
Find the unknown side length, x. Write your answer in simplest radical form.
A. 2.41
B. 429
C. 48
D. 58

Answers

Answer:

Your answer is D. 58

Step-by-step explanation:

x= [tex]\sqrt{(42^2+40^2)}[/tex]

Permutations
How many different six-letter words can be formed from the word SCHOOL?

Answers

Answer:

Se pueden formar 2520 palabras distintas de 7 letras con las letras de la palabra ESCUsil

Explicacion:listo :)

HELPHELPEP ITS ON SCIENCE AND IS DUE IN 30 MINS AND I HAVE NO CLUE WHAT TO DOOO

Answers

sorry for bad handwriting

Answer:

1: Moving 2:A cup of room temperature water 3:It can solidify into ice 4:The sun coming out every morning, warm air. 5:Cold air conditioning inside of a car, Night starts. 6:C 7:liquids 8: Into the leg 9:They slow down 10:smaller, slow down.

Step-by-step explanation:

The probability that it rains is about 20%.
The probability that the bus is late is about 8%.
The probability that it rains and the bus is late is about 3%.
The probability that the train is late is about 5%.
The probability that it rains and the train is late is about 1%.

what can you conclude about the rain and the students commute on the bus and train?​

Answers

Let A= probability it rains
P(A)=0.2
Let B be the probability that the train is late = 0.05
P(B)=0.05
A and B is A∩B= the probability it rains and the bus is late =0.01
probability pf (A and B)=0.01
7) independent events are related by expression:
A∩B=P(A)*P(B)
=0.2*0.05=0.01
check :
p(A|B)=P(A∩B)÷P(B)=0.01/0.05= 0.2
the two event are independent

If l m, identify the angle pair as congruent or supplementary. Justify your reasoning by classifying the angle pair

Answers

Answer:

Not them Still deleting answers

Step-by-step explanation:

An equation is an expression without an equal sign?

Answers

Answer:

False

Step-by-step explanation:

Answer:

it's actually reverse; an expression is an equation without an equal sign so false lol

Step-by-step explanation:

f(x) = x² - 6x
g(x) = (square root) x
Evaluate.
f(g(25)) =

Answers

Answer:

-5

Step-by-step explanation:

is a ez question

Answer: -5

Step-by-step explanation: see photo below

evaluate functions from their graph g(7)

Answers

Just evaluate the functions from their graph

Answer:

Evaluate functions from their graph g(7)= 4

Step-by-step explanation:

If the point (a,b)(a,b)left parenthesis, a, comma, b, right parenthesis is on the graph, then g(a)=bg(a)=bg, left parenthesis, a, right parenthesis, equals, b.

We should look for the point on the graph whose x-coordinate is 7.

The point on the graph whose xxx-coordinate is 7 is the point (7,4)

Therefore, g(7)=4.

The function () = 150(1.3)

represents the number of bikes sold at Peer’s Bike store in months. The graph
represents the amount of bikes sold at Cycles R Us bike store in the same time period

Answers

Cycles R Us sold 100 bikes more than Peer's Bike store in week zero.

   Peer's Bike store sold 50 bikes more than Cycles R Us bikes store.

Exponential function:An exponential function is defined by the expression,

        [tex]y(t)=y_0(1+r)^t[/tex]

        Where, [tex]y(t)=[/tex] Final value

        [tex]y_0=[/tex] Initial value

        [tex]r=[/tex] rate of increase

        [tex]t=[/tex] Time or duration

Given in the question,

Exponential function representing the bikes sold at Peer's Bike store,

        [tex]y(t)=150(1.3)^t[/tex]

        At t = 0,

        [tex]y(0)=150(1.3)^0[/tex]

        [tex]y(0)=150[/tex]

Graph representing the function for the bikes sold at Cycles R Us bikes store,

        [tex]y(t)=y_0(1+r)^t[/tex]

        From the graph attached,

        At t = 0 , [tex]y_0=100[/tex]

Difference in the bikes sold at Peer's Bike store and Cycles R Us bikes store = [tex]150-100[/tex]

         = [tex]50[/tex]

      Therefore, 50 more bikes were sold at Peer's Bike shop than at Cycles R Us store.

Learn more about the exponential function here,

https://brainly.com/question/2193820?referrer=searchResults

I will go down on you at this point

Answers

How many t shirts does Jill want?

For your batch of cookies, you'll need 2 cups of chocolate chips for every 5 cups of cookie dough mix. You have 30 cups of cookie dough mix, how many cups of chocolate chips?

Answers

2/5=x/30 so first one times by 6 and to get 12

need help asap will give brainly

Answers

Answer:

False

Step-by-step explanation:

please brainlist

Answer: 0.125 meters / 1 I think

helllllllppppp plzzzz

Answers

The line intersects at (-0.5,0.5)
The solution is (-0.5,0.5).

A city that has an elevation of -17 meters is closer to sea level than a city that has an
elevation of -40 meters. Agree or disagree?

Answers

Answer:

yes agree

Step-by-step explanation:

because negative 40 is less than negative 17

Da Baby has $45,000 and earns $2,500 each hour
from streams. JoJo Siwa has $62,000, earns $2,000
each hour from streams.
How
SI
Each equation represents the amount in the bank after
t hours.


Da Baby: s= 2,500t + 45,000
JoJo Siwa: s= = 2,000t + 62.000
How many hours, will it take for Da Baby and JoJo
Siwa to have the same amount in the bank?

Answers

Answer:

Step-by-step explanation:

maybe 30 vtfyubf6tyubtfcgnfgghghnvb ngvbhfhgbfvgn

The table shows the height of water in a pool as it is being filled. A table showing Height of Water in a Pool with two columns and six rows. The first column, Time in minutes, has the entries, 2, 4, 6, 8, 10. The second column, Height in inches, has the entries, 8, 12, 16, 20, 24. The slope of the line through the points is 2. Which statement describes how the slope relates to the height of the water in the pool?
A. The height of the water increases 2 inches per minute.
B.The height of the water decreases 2 inches per minute.
C. The height of the water was 2 inches before any water was added.
D. The height of the water will be 2 inches when the pool is filled.

Answers

Answer:

A. The height of the water increases 2 inches per minute.

Work out the size of angle x.
105°
to

Answers

Answer:

105

Step-by-step explanation:

cuz it is corresponding angle

What's the volume of the prism?

Answers

Answer:

36

Step-by-step explanation:

Isn’t it 36^3 I think hope this helps

The ratio of cakes to cookies in the bakery was 3:5. If there were 90 cakes, how many cookies were in the bakery?
plz help

Answers

Answer:

150 cookies

Step-by-step explanation:

Using the ratio as an equation we can divide 90 by 3 to find the common multiple used to simplify this equation into a more usable ratio.

3 : 5          90 : 5x (x is the common multiple)

90 / 3 = 30, so x is 30

Then we multiply both sides of the original ratio by the common multiple to get our answer.

3 : 5 is equal to 90 : 150

Identify the pair of exponents that would make this statement FALSE

Answers

Answer:

the right one is b

Step-by-step explanation:

because if you add all of the other oned it would be 24

Use the points in each diagram to name the figure shown

Answers

AW

Because the line goes from a to w

I don’t know how to do these I need help

Answers

k = 15 is the answer!!!!!!

Kelly has a rectangular fish aquarium that
measures 18 inches, 8 inches wide and 12 inches
tall. How much water does the aquarium can
hold?

Answers

volume = 18x8x12
= 1728

Anna's Savings Dollars Saved 4 8 Dollars Spent 6 12 18 24 Dollars Earned 10 30 40 Anna walks dogs to earn money. She saves $4 for every $10 she earns. Use your knowledge of ratios to determine whether each statement is TRUE for the missing values on the table. Anna saves $10 for every $20 she earns. Anna saves $12 for every $30 she earns. Anna saves $18 for every $40 she earns. The ratio of the amount of money Anna spends (in dollars) to the amount of money she earns is 3 to

Answers

Answer: is b peoples i repeat people who dont

know nothing its b b b b bb b b b b b b b b

Step-by-step explanation:

pls help me ill try to give brainliest

What is the value of the missing angle in this triangle?

Answers

Answer:

x = 20°

Step-by-step explanation:

by angle sum property of triangle

30 + 130 + x = 180

x = 180 - 160

x = 20°

57 x 8.50 = 484.50 please show me the formula in doing it​

Answers

Answer: 57 x 8.50 = 484.50

Step-by-step explanation:

Answer: 484.50

Step-by-step explanation:

Multiply without the decimal first:

57 x 850 = 48,450

Now you add the decimal to equation.

You move the decimal as how many numbers there are behind it.

84(.)50(.)

When you count to put the decimal count it from right to left.

484.50

Find the annual interest rate. $I=\$160$ , $P=\$2000$ , $t=8$ months The annual interest rate is %.

Answers

Answer:

[tex]1\%[/tex]

Step-by-step explanation:

Simple interest (I) = $160

Principal amount (P) = $2000

Time period (t) = 8 months

Let R denotes rate of interest.

Relation between simple interest, principal amount, time and rate of interest  is given by [tex]I=\frac{PRT}{100}[/tex]

[tex]160=\frac{2000(R)(8)}{100} \\\\160=160R\\R=1\%[/tex]

Answer:

12

Step-by-step explanation:

It would be: r = I * 100 / P * R

r = 160.67 * 100 / 2000 * 2/3

r = 16067*3 / 4000

r = 48201 / 4000

r = 12

A triangle has side lengths of 5a +3 inches and 2a +3 inches. If the perimeter of the triangle is 3a + 12 inches, which expression represents the length, in
inches, of the third side of the triangle?

Answers

Answer:

A. 2a+6

Step-by-step explanation:

I did the test and this is what I got.

LCM of 12 32 and 56 please tell

Answers

Answer:

672

Step-by-step explanation:

Hope it helps ;)

Help me pleaseeeee I need this quick

Answers

Answer:

Step-by-step explanation:

Multiply?

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