Mathematics Middle School

If 3y + 3 = y + 7 is the same as y + y +y + 1 + 1 + 1 = y + 1 + 1 + 1 + 1+ 1 + 1 + 1, then how can we isolate 'y' without disrupting the balance?

Answers

Answer 1

Answer: The expanded form isn't required. Just make sure that it's possible to send the variable you are solving for to one side, and then solve.

Step-by-step explanation:

combine like terms:

3y-y = 7-3

2y = 4

y = 2

Related Questions

A circle has an area of 256π square inches. If the radius of the circle is multiplied by 4, what will be the area of the new circle formed.
*First correct answer gets Brainliest*

Answers

Answer:

the correct answer is c

Step-by-step explanation:

I need help plssssssssssssssssssssss

Answers

Answer:

Step-by-step explanation:

Given:

325 pages

90,000 words

Recommended  reading: 200 words/ 1 minute

How many words on each page ?

90,000 words /325 pages ≈ 277 words / 1 page

Now see the picture.

The numbers for the difference I round them to the nearest word.

Answer:

it is blurry

Step-by-step explanation:

Which property is shown in the expression below ?


7ab(5-8c) = 35ab-56abc

A.Associative Property
B.Commutative Property
C.Distributive Property
D.Indentity Property

Answers

Answer:

c

Step-by-step explanation:

The answer is c

The explanation is the sum of 2 numbers times a third number is equal to the sum of each addend times the third number.

i dont get it, does anyone know slope?

Answers

Answer:

are you trying to figure out what slope is or what the slope is on the assignment  

Step-by-step explanation:

The slope is 1200/12 or simplified it would be 1/100

The circumference of a circular trampoline is 100π in.

What is the radius of the trampoline? Just answer dont have to do work A B C D just do that or put numbers here the picture

Answers

Answer:

its 2500in

Step-by-step explanation:

Radius is half of the circumference 50

A cereal bar contains 3,000 milligrams of protein. How much protein does it contain in grams?
Be sure to include the correct unit in your answer.

Answers

Answer: 3,000 milligrams would equal 3 grams because 1 gram= 1,000 milligrams

Answer:

3 grams.

Step-by-step explanation: 3,000 milligrams converted to grams = 3 grams.

Referring to the Fig. in Question #19, given FGHI≅WXYZ,
find WX

Answers

Answer:

∠Y= 120

Step-by-step explanation:

The answer is 120 hope this helps

4 shirts for $14. How many shirts can you purchase for $30?




Plz show your work

Answers

Answer:

2 shirts

Step-by-step explain

14 times 2 is 28 and you cant go over the price so yes 2

Well the person above must have read the question wrong because the answer would actually be 8 because if you can buy 4 shirts for 14 dollars then if you doubled 14 it would just be under 30 with 28 dollars and yes you can’t go over so the most you could buy is 8

PLEASE HELP IT"S DUE TOMORROW THANK YOU :(((((((

Answers

10.25-8.2= 2.05
2.05 miles is the answer
I’m not sure if this is right but I think it’s 14.425 miles

Referring to the figure, find the surface area
of the cylinder shown. Round to the nearest whole number.

Answers

Answer:

2318

Step-by-step explanation:

900 thousand m no more

i needed to write something long enough

Answers

Answer:

The 1st problem it is the last graph.

The 2nd problem it should be the first graph.

Idek what that is tbh

Find the product. List the units.
3/4h × 19 mi/1/4 h =

Answers

3/4 h times 19mi / 1/4 h
= (3/4)(19/(1/4) (h)(mi/h)
= (3/4)(76) mi
= 57 mi

or, 3/4 hrs ÷ 1/4 hrs = 3 hrs
and 3(19) = 57

or, 19 mi/(1/4)h = 76 mph
you are doing this for 3/4 hrs, so (3/4)(76) = 57

Answer:

57 miles

Step-by-step explanation:

First, do 19 ÷ 1/4. This is the same as 19 × 4 which is 76. Then do 3/4 × 76. 76 ÷ 4 = 19 and 19 × 3 is 57. The unit is miles because the two h's cancel out.

Hope this helps!

What is the total paid back on a loan of $1,500 with an interest rate of 3.74% for 2 years?

Answers

Answer:

1612.2

Step-by-step explanation:

3.74% × 2 = 7.48%

1500 + 7.48% = 1612.2

Answer:

1,500 x 1.0374^2 = 1614.29814

=$1613.30

Step-by-step explanation:

Referring to the Fig. in Question #34, find the slope of

the line through the points B and C.

Answers

Answer:

-1/3

Step-by-step explanation:

m= y2-y1/x21-x1

m= 2-1/-2-1

m= 1/-3

m= -1/3

The answer is -1/3 to your problem

3/13 as a long division and decimal show work

Answers

you most likely only need the first 3 digits after the decimal point but if you needed more i added them! hope this helps
you knky needs the first 3 digits

Referring to the Fig. in Question #40, find the unknown
length Y.

Answers

Answer:

tan30°=7/x

[tex] \frac{1}{ \sqrt{3} } = \frac{7}{x } \\ x = 7 \sqrt{3} [/tex]

cos30°=x/y

[tex] \frac{ \sqrt{3} }{2} = \frac{7 \sqrt{3} }{y} \\ \\ 7 \sqrt{3} \times 2 = \sqrt{3} \times y \\ \frac{7 \sqrt{3 } \times 2}{ \sqrt{3} } = y \\7 \times 2 = y \\ 14 = y[/tex]

tell me if it's wrong.

Above answer is correct

The perimeter of a triangle is 51 cm. The lengths of its sides are x cm, x
+2cm, and x+4 cm. What is the length, in cm, of the longest side of the triangle

Answers

Answer:

longest side is x+4 = 15+4 = 19 cm

Step-by-step explanation:

I need answers very quick my brain is smol

Answers

Exact form: x=-10/3
Mixed number form: x=3 1/3

Meghan's home is on the same straight road as the library and sporting goods store. Meghan marks the location of the library and the location of the sporting goods store on a number line, using her home's location as 0. She marks the library at −3.7 and the sporting goods store at 12.5. What is the distance between the library and the sporting goods store on Meghan's number line? Enter your answer as a decimal in the box.

Answers

Answer:

Step-by-step explanation:

-3.7+12.5=8.8

Answer:

12.5 - (-3.7)

12.5 + 3.7

16.2

Step-by-step explanation:

The distance is 16.2

The problem 7,291 ÷ 19 is solved below using partial quotients. Identify what partial quotient was used in each step. Then, identify your final quotient.

Answers

So I can use goolgle
7291/19=383.7
So if I’m not mistaken it asks 7291 divided by 19 the Answer is 383.7

-5= -10+y how do i reorder this and why do i reorder it in that way? i think i know how to reorder it i'm just confused on why it has to be ordered that way. plz help, thanks!

Answers

Answer:

y = 5

Step-by-step explanation:

Ok so you need to move y to its own spot so either on the right or left of the equation. BUT i recommend leaving it and instead moving -10 to the other side. REMEMBER when you move a number to the other side of the equation you change its value so instead of -10 it will become +10. so you will get 10-5=y so 5=y, if you want the y to be on the other side flip them around -y=-5(since you switched them you need to make them minus, or plus if the number was originally negative) SINCE you have minuses on both sides you can cancel them out and you will be left with y=5.

Why you need to reorder:

you need to reorder to find Y there is no way you can find Y without reordering. When you are reordering remember that Y has to be by itself in one side of the equation.  

Y = 5

BTW if someone is good at maths can you please check the question that i’ve posted

USE THE STEPS BELOW TO ANSWER QUESTIONS 1-2.

Step 1: 3/4 (12x + 20y)

Step 2: 9x + 15y

Step 3: 3(3x + 5y)

Step 4: 3(5y + 3x)


1.Which property below is used between Steps 1 and 2 ?

A. Associative property

B. Commutative property

C. Distributive property

D. Identity property


2.Which property below is used between Steps 3 and 4 ?

A. Associative property

B. Commutative property

C. Identity property

D. Inverse property

Answers

Answer:

1.) Distributive Property

2.) Associative Property

Step-by-step explanation:

Please leave ”thanks” heart if I helped

Distributive and commutative

someone buy my a iphone 8+ plsssss for school

Answers

Answer:

Nope

Step-by-step explanation:

This isnt wishlist

No
Explanation: because we aren’t “Santa”

i need help like please

Answers

Perimeter is the sun of all 4 sides. So, 23+23+79+79. This is equal to 204 yds.

Answer:

204 is the correct answer :)

Find two fractions that are equivalent to 1/9=2/18

Answers

Answer:

4/36 and 8/72

Step-by-step explanation:

4/39 and 8/72. Hope this help

How do I graph this??? HELP FAST

Answers

Answer:

the 2x and 1/2x are the slope.(rise over run)

the +2 and -1 are intercepts on the y axis

Step-by-step explanation:

What are the equivalent ratios of 3:4

Answers

Answer:

A ratio of 1/2 can be entered into the equivalent ratio calculator as 1:2. 2/10 would be 2:10, 3/4 would be 3:4 and so on.

Step-by-step explanation:

Try using a equivalent ratio calculator

Please give thanks :)

-1/2 divided by ______ = -7/3

Answers

Answer: 7/6

Step-by-step explanation:
1/2:3/7× x = 1/2x= 1/2 ÷ 3/7x= 1/2×7/3x= 7/6

Referring to the Fig. in Question #26, approximate from the graph
the time it takes the car to travel 900 feet.

Answers

[tex] \frac{900}{7 0} = 12.857.....[/tex]

It will take approximately 13 seconds.

Answer:

About 13 seconds

Step-by-step explanation:

900/70 = 12.85...

12.85 = 13

Rob can wash 20 cars in 5 hours. How many cars can Rob wash in 2 hours?

Answers

Answer:

4 cars because he washed 20 cars in 20 hours

Answer:

8 cars

Step-by-step explanation:

20÷5=4

so 4 per hour

4•2=8

so 8 per 2 hours

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