ie +5= 20 are shown below. The first and second steps to solve the equation 5 +55= 20-5 5 5 = 15 Which property was applied in the second step? O Addition Property of Equality O Subtraction Property of Equality Multiplication Property of Equality O Division Property of Equality​

Answers

Answer 1

Answer:

x+8=10

x−4=22

x÷3=6

7x=28

Step-by-step explanation:

George has cut down a 60ft high oak tree. He now wants to chop it into smaller pieces. He first cuts it into two pieces that are both 30ft. And then he continues on into making ten pieces that all are 6ft long before loading them onto his truck.

picture08

By looking at the different pieces of wood we can see that the following holds true.

60=30+30=6+6+6+6+6+6+6+6+6+6

This is called the reflexive property of equality and tells us that any quantity is equal to itself

a=a

We can also use this example with the pieces of wood to explain the symmetric property of equality. This property states that if quantity a equals quantity b, then b equals a.

ifa=b,thenb=a

Or if we use our example

if60=30+30,then30+30=60

Another property that can be explained by this is the transitive property of equality. It tells us that if a quantity a equals quantity b, and b equals the quantity, c, then a and c are equal as well.

ifa=bandb=c,thena=c

Or in the numbers taken from the oak tree example

if60=30+30

and30+30=6+6+6+6+6+6+6+6+6+6

then60=6+6+6+6+6+6+6+6+6+6

Since we know that 30 + 30 = 20 + 40 and that 30 + 30 = 60 we can substitute 30 + 30 for 20 + 40 and get 60 = 20 + 40. This is called the substitution property of equality.

If a = b, then a can be substituted for b in any expression.George has cut down a 60ft high oak tree. He now wants to chop it into smaller pieces. He first cuts it into two pieces that are both 30ft. And then he continues on into making ten pieces that all are 6ft long before loading them onto his truck.

picture08

By looking at the different pieces of wood we can see that the following holds true.

60=30+30=6+6+6+6+6+6+6+6+6+6

This is called the reflexive property of equality and tells us that any quantity is equal to itself

a=a

We can also use this example with the pieces of wood to explain the symmetric property of equality. This property states that if quantity a equals quantity b, then b equals a.

ifa=b,thenb=a

Or if we use our example

if60=30+30,then30+30=60

Another property that can be explained by this is the transitive property of equality. It tells us that if a quantity a equals quantity b, and b equals the quantity, c, then a and c are equal as well.

ifa=bandb=c,thena=c

Or in the numbers taken from the oak tree example

if60=30+30

and30+30=6+6+6+6+6+6+6+6+6+6

then60=6+6+6+6+6+6+6+6+6+6

Since we know that 30 + 30 = 20 + 40 and that 30 + 30 = 60 we can substitute 30 + 30 for 20 + 40 and get 60 = 20 + 40. This is called the substitution property of equality.

If a = b, then a can be substituted for b in any expression.


Related Questions

Plsss I need help ASAP

Answers

Answer:

The first is True.

The second is False.

The third is True.

The fourth is True.

The Fifth is False.

Answer:

true, true, false

Step-by-step explanation:

Find the value of x in the diagram below.
A. -8
B. 8
C. 98
D. 172

Answers

x+143=135
x=-8
so it’s a

Nola was selling tickets at the high school dance. At the end of the evening she picked up the cash box and noticed a dollar lying next to it. She said, "I wonder whether the dollar belongs inside the cash box or not." The price of tickets for the dance was 1 ticket for

Answers

Answer:

The $1 belongs to the cash box

Step-by-step explanation:

Given

See attachment for complete question

Required

Determine if the $1 belongs to the cash box or not

Represent singles with s and couples with c.

From the attachment, we have:

[tex]s + c = 47[/tex] --- total attendance

[tex]5s + 4c =200[/tex] --- ticket sold

Solve for s and c.

Make s the subject in (1)

[tex]s = 47-c[/tex]

Substitute 47 - c for s in (2)

[tex]5(47 - c) + 4c = 200[/tex]

Open bracket

[tex]235 - 5c + 4c = 200[/tex]

[tex]235 - c = 200[/tex]

[tex]c = 235 - 200[/tex]

[tex]c = 35[/tex]

This means that the total individual which makes up the couples are 35. This is not possible because couples are in 2's and the total should be an even number.

So, we can conclude that the $1 belongs to the cash box

pls helpsmcbjcuejdyxnbcmd​

Answers

Answer:

The Girl Guides will need 32 walkers in order to reach their goal. The equation used to find the amount of walkers is 24x + 232 = 1000.

Step-by-step explanation:

24x + 232 = 1000

24x + 232 - 232 = 1000 - 232

24x = 768

24x ÷ 24 = 768 ÷ 24

x = 32

5 m
19 m
5 m
4 m
3 m
Find the surface area of the figure above.

Answers

I think the answer is 5700.

because of you multiply the numbers together you'll get the answer.

hope it helps.

have a great day.

I think that the surface area is 622 meters squared

Multiply each equation by a constant that would help to eliminate the y terms.

2 x minus 5 y = negative 21. 3 x minus 3 y = negative 18.

What are the resulting equations?

Answers

Answer:

multiply first equation with 3 and second equation with 5

Ashton just launched a new business page on social media. After one month, she has 35 followers.
She decides to take a course that promises to triple her number of followers each month for 6
months. After 7 months, how many followers will Ashton have if this is true?

Answers

Answer:

122.5

Step-by-step explanation:

If it triples her followers per 6 months then it gives her half of her followers in one month. So 35 times 3.5 which is 122.5

After [tex]7[/tex] months, Ashton will have [tex]25,515[/tex] followers.

What is modelling ?

Modelling is the process of creating a mathematical representation of a real-world scenario to make a prediction or provide insight.

We have,

Number of followers [tex]=35[/tex]

So, Every month increase is triple i.e. [tex]3[/tex] times for next [tex]6[/tex] months.

So,

According to the question,

Every month increase [tex]=\ 3\ *\ Current\ Follower[/tex]

So,

Followers after [tex]7[/tex] months [tex]= 35*(3)^6[/tex]

Because followers are increasing at the rate of three times per month,

So,

Followers after [tex]7[/tex] months [tex]= 35*(3)^6=25,515[/tex]

Hence, we can say that After [tex]7[/tex] months, Ashton will have [tex]25,515[/tex] followers.

To know more about Modelling click here

https://brainly.com/question/14425880

#SPJ3

Write an equation that represents the line. Use exact numbers (i will mark you brainliest)✅

Answers

Answer:

y=4/5x-18/5

Step-by-step explanation:

there are multiple ways we can find the slope, let's use two points and the point slope form y=mx+b for this equation. we can find the slope by using the equation [tex]\frac{y_2-y_1}{x_2-x_1}[/tex]

in this case, we can use the two points (-3,-6), (2,-2)

y2=-2, y1=-6, x2=2, x1=-3

so, the equation is [tex]\frac{-2-(-6)}{2-(-3)}[/tex]

this reduces to 4/5

our slope is 4/5, so the equation for now is y=4/5x+b

let's use (2,-2) to find b. the y is -2, x is 2

-2=4/5(2)+b

-2=8/5+b, multiply both sides by 5:

-10=8+5b, subtract 8 from both sides

-18=5b, divide by 5

-18/5=b

our final equation is y=4/5x-18/5

How do I find x in this problem?

Answers

Answer:

since it's a 5 sided figure, 540-136-108-140-76 wil lgive you your answer

S=(n-2)180
S=(5-2)180
S=3 x180
S=540

540= x+136+108+140+76
540=x+460
540-460=x
80=x
X=80

I need help with Geometry

Answers

Answer:

Angle 1 is 17° Angle 3 is 73°

Hope this helps.

3. A recipe for banana bread calls for 0.5 cup of vegetable oil. If the baker
wants to make 3 loaves of banana bread, how much vegetable oil is
needed?

Answers

1.5 cups of vegetable oil

i need help like really bad

Answers

Answer:

A

Step-by-step explanation:

14/15 is less than 7/5

Answer:

dang me too I'm like almost failing

Tony buys 6 packages of cookies. Each package of cookies
cost $2.50. How much will he spend?
I​

Answers

Answer:

15 dollars

Step-by-step explanation:

Answer:

15$

Step-by-step explanation:

2.50 * 6

15

Which point is on the graph of the equation y=2x-5?


(3,-1)

(2,-1)

(4,2)

(2,-5)​

Answers

Answer:

(2,-1)

Step-by-step explanation:

If you plug each answer into the equation, (2,-1) is the only answer that makes the equation true. Hope this helps!

All of the following are equivalent except
1) 4 y
2) (4) (Y)
3) 4•Y
4)4+ y

Answers

4 because all of the others involve multiplication and 4 involves addition.

What is the answer to y + 6 = 20

Answers

Answer:

y=20-6=14

Step-by-step explanation:

14 is the answerrrrrr...

If you wanted to shift the graph of y= 4x + 7 down, which equation could you use?

Answers

Answer:

D

Step-by-step explanation:

PLZ HELP!!!! ILL GIVE BRAINLIEST

Answers

Answer:

0,0

Step-by-step explanation:

not 100% sure

rotation reflection or translation which one is it

Answers

translation because it’s moving to a different grid but the size and shape stays the same. if it were rotation the position would be different.

solve for the missing side: simplify the radical ​

Answers

Answer:

[tex]x=8\sqrt{5}[/tex]

Step-by-step explanation:

I will assume the following:

You know how to use  the quadratic formulaYou know how to simplify radicalsYou know how to use the pythagorean theorem.

The challenge of this exercise comes from using the pythagorean theorem and setting up a few equations.

Given that we have a segment 36 units long and another segment that is 16, it is trivial to get the other segment, 20. Additionally, there are two sides that I want to name so that way I can make a couple of substitutions. I will call these side a and side b. (see attachment 1)

Now comes with setting up three equations. I will start with the two smaller triangles, using side a and side b. See attachments 2 and 3.

Now with the big triangle. I will set up one last equation. See attachment 4.

Given what we know about attachment 2 and 3, we can make two substitutions. See attachment 5. I assume you know how to do the rest and arrive at your only real solution.

WILL GIVE BRILLIANTIEST!
A small town voted to decide if a road should be expanded from two lanes to four lanes. The two-way table below shows the
results of the vote.
Favor
Oppose
Neutral
Total
33
12
46
91
45
15
36
96
Age
18-25
Age
26-40
Age
40+
Total
10
29
24
63
88
56
106
250
Which correlation does the two-way table suggest?
A Voters age 40 and over are least likely to favor road expansion.
B. The majority of the voters are most likely to favor road expansion
c. Voters between the ages of 26 and 40 are most likely to oppose road expansion
D.
Voters between the ages of 18 and 25 are least likely to favor road expansion

Answers

Answer:

the answer is D because it makes the most sense

Answer:

A.......,..............

8th grade math! If you know the answer to this problem please interact(:

Answers

Answer:

the third one (-2,1)

Step-by-step explanation:

Answer:

C

Step-by-step explanation:

so solving the first one we get

y=2x+5

and the second one we get

y=5x+10+1

y=5x+11

substiuting we get

2x+5=5x+11

3x=-6

x=-2

and y= 1

so it would be C

if my answer helps please mark as brainliest.

How many groups of 3/4 are in each of the following quantity 11/4?

Answers

It is 3 groups. Because the max of 3/4 is 9/4

Teri earned $18.25 an hour at the semiconductor plant. The payroll deductions reduced her paycheck by $182.50. If her first weekly paycheck was at least $547.50 after the deductions, how many hours did she work that week?

Answers

Answer:

40 hours

Step-by-step explanation:

did 18.25*40 then subtracted 182.50 and it equaled 547.50

Please help if you want BRIANLEIST!!

Answers

Answer:

9/9 × 7 is equal to 7

9/9 × 7 =

9/9 × 7/1 =

9 × 7 = 63

9 × 1 = 9

63/9 ÷ 9 = 7

PLS HELP THE PICTURE IS DOWN BELOW

Answers

Answer:

4

Step-by-step explanation:

Normally you would have to figure out the distance of the x- and y-components and use the Pythagorean Theorem; however, because the y-coordinates of both points are the same, you only need the x-coordinates.

You have the first point back 3, and the second point forward 1.

So starting at -3, you move 4 points to get to 1.

((-3 to -2 (1), -2 to -1 (2), -1 to 0 (3), 0 to 1 (4)))

PLEASE HELP. WORTH 100 POINTS !


if you take points and leave without answering I will report you

Answers

Answer:

6) 60°

7) 24.25°

8) 28°

Step-by-step explanation:

I’m not 100% sure but hope this helps.

Answer:

6. u = 60

7. 24.25°

8. 28°

Step-by-step explanation:

6. First we know that a triangle is 180 degrees. So we would do 30+90+u=180

120+u=180

-120    -120

u = 60

HELP PLSSS IM BEGGING YALL

Answers

Answer:

um go eat a PoTAto cause they are good :(

180-65=115/5=21 is the answer

john makes $400 per week. What does it mean for him to get a 150% salary raise? Explain in words and then give an example showing a calculation.
can u guys plzzzzzzzzzzzz help me

Answers

he’s gotten a 200$ raise

Using the function s = 13.50 which statement is true

A. The dependent variable is s
B. The dependent variable is h
C. the independent variable is s
D. the independent variable is 13.50

Answers

C. The independent variable is s

Answer:

A the dependent variable is s

Step-by-step explanation:

This is the correct answer from the review page.

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