Mathematics Middle School

Use your knowledge about parentheses and substitution to solve the following:

1. r(s)(t) =

2. (r)(s)(t)(x)(y) =

3. (7x + 2Y) =

Answers

Answer 1

Answer:

what grade you in

your answer 3x+y

Step-by-step explanation:

Answer 2

Answer:

3x+y

x

​  

 

=−3

=−y+3

3x+y

3(−y+3)+y

−3y+9+y

−2y

y

​  

 

=−3

=−3

=−3

=−12

=6

​  

Step-by-step explanation:

Hope this helps!

Related Questions

What are the coordinates of Point X?
A. (3, –4)
B. (–3, –4)
C. (4, –3)
D. (4, 3)

Answers

Answer:

3, -4

Step-by-step explanation:

Hi I really hope this helps you, Please mark as brainliest!

The answer is A) 3,-4

Can someone help me please

Answers

Answer: 0

Step-by-step explanation: ur welcome ;)

Answer:

y-y₁=m(x-x₁)

(10,3) (2,3)

3-3=m(2-10)

0=m(-8)

0+8=m

8=m

I hope this helps:

Does anyone play trumpet if so can you tell me the notes for measures 17-30 please this is due at 6:00 pm today! and i know its not math but- there was no music option

Answers

is there a picture you can show? i can’t help you if not

Please HELP me!!!! I will give brainlist if correct. Explain how you got that answer. thx
The least common multiple of two whole numbers is 60. The ratio of the greater number to the lesser number is 6: 5. What are the two numbers?
The greater number is ___________ and the lesser number is ____________

Answers

Answer:

60 is greater than 6: 5

The greater number is 60 and the lesser number is 6: 5

I NEED HELP ASAP PLEASE!!!

Choose Yes or No to tell whether the expression represents a 20% discount off the price of an item that originally cost d dollars.
A. 0.8d

B. d – 0.2

C. d – 0.2d

D. 1 – 0.2d

Answers

Answer: The answer is .D

What is the measure of the angle? A 125, B135, C 55, or D 45.

Answers

I think the answer is C, I could be wrong though
it is c because when you look at the angle, 125 would be a straight line almost, 135 would be closer to a straighter line c is slightly larger than 45 which would make sense and 45 is slightly too big. hope this helps brainlist would be much appreciated

Sarah says that 26 ÷ 8 equals 14 ÷ 4 because both have a quotient of 3 and a remainder of 2. Are the division expressions equivalent to each other? Show her mistake using division. Explain your answer.

Answers

Answer:

no 14/4 = 3.5

Step-by-step explanation    Her first mistake was not putting 14/4 into a calculator

She puts 14/4 wrong it would give you 3.5 not 3

Pease help me this is a really hartd problem

Answers

Answer:

2.34

Step-by-step explanation:

2 large bags =45.6

2 small bags plus a medium bag =43.25

45.6 minus 43.26= 2.34

2.34 is the answer you are looking for.

Please help, will give brainliest to whoever is most detailed.
The United States Postal Service delivers about 2^4 multiplied 3 multiplied 5^3 pieces of mail each second. There are 2^8 multiplied 3^4 multiplied 5^2 seconds in 6 days. How many pieces of mail does the United States Postal Service deliver in 6 days? Write your answer as an expression involving three powers.

Answers

Answer:

2^8⋅5^2pieces of mail each second X 2^8⋅3^4⋅5^2 seconds in 6 days

=2^16. 3^4. 5^4 pieces of mail delivered in 6 days.

Step-by-step explanation:

Answer:

2^8⋅5^2pieces of mail each second X 2^8⋅3^4⋅5^2 seconds in 6 days

=2^16. 3^4. 5^4 pieces of mail delivered in 6 days.

Step-by-step explanation:

I hope this hleps answer your question

Complete the description of how you use the order of operations to simplify expressions with exponents.


Find the value of any expressions (outside of/within) parentheses first. Then evaluate all powers. Then multiply or (subtract/divide) from left to right, and finally add or (divide/subtract) from left to right.

Answers

Find the value of any expressions (within) parentheses first. Then evaluate all powers. Then multiply or (divide) from left to right, and finally add or (subtract) from left to right.

Calculators cannot display repeating decimals. Calculators always round.

Adele's calculator displays decimals to 5 places. She uses her calculator to find the decimal equivalent for each of the fractions below.

For each number, choose what her calculator will display as the decimal equivalent. Then choose whether or not this is the exact decimal equivalent.

Answers

Answer:

3/12 is an exact decimal equivalent

Step-by-step explanation:

11/12 = 0.91667 it’s a repeating decimal

3/12 = 0.25 it’s a terminating decimal

1/12 = 0.08333 it’s a repeating decimal

Houa has an action figure collection. She keeps some in a display case and the rest on the wall. 82 of her action figures are on the wall, and 59% of her action figures are in the display case. What is the total number of action figures in Houa's collection?

Please help, would be appreciated :)

Answers

Answer:

u just 82 + 59% = 130.38

Step-by-step explanation:

Peter placed an order with an online nursery for 6 apple trees and 5 azaleas and the order came to $147. The next order for 3 apple trees and 4 azaleas came to $96. What was the cost for each apple tree and for each azalea?

Answers

Answer:

$243

Step-by-step explanation:

The first order you made :

6 apple

5 azaleas

And total cast was:

 $147

The secant order you order was:

3 apples

4 azaleas

And total cast was:

$96

The total cast of both orders is:

$243

The total cost for each apple tree and for each azalea is $243

What is Algebra?

Algebra is the study of abstract symbols, while logic is the manipulation of all those ideas.

The acronym PEMDAS stands for Parenthesis, Exponent, Multiplication, Division, Addition, and Subtraction. This approach is used to answer the problem correctly and completely.

The first order you made are consistes of 6 apple and 5 azaleas

And total cost was  $147

The second order you order was consistes of 3 apples and 4 azaleas

And total cost was $96

The total cost of both orders is;

147 + 96 = $243

More about the Algebra link is given below.

brainly.com/question/953809

#SPJ2

what is the property to solve x/4 = -18?
distributive property, multiplication property, or division property.

Answers

Answer:

Multiplication Property

Answer:

multiplication property

Step-by-step explanation:

UHHHHHHHHHHHH THIS IS EASY MATH WORK BUT I ONLY HAVE 2 BRAINCELLS THAT ARE SLOW SO JSJSJJSJJSJ HELP.

Answers

Answer:

1,708

My browser has a tool for solving the area of trapezoids that I used. Hope this helps!

1708 is than answer

pls help it is due today

Answers

Answer:

21 thousand and 51 thousand

Step-by-step explanation:

28683 point 3 to the 86

Which of the following describes the function shown in the table below?

Answers

Answer:

B i took the test 100%

Step-by-step explanation:

Identify the inequality graphed on the number line.
A) x - 8 < 3
B) x + 8 < 3
C) x - 8 < -3
D) x + 8 < -3

Answers

Step-by-step explanation:

look at the attachments

A) x<11

B) x<-5

C) x<5

D) x<-11

1. If you were to describe a TRANSLATION of triangle ABC, what information would you need to include in your description?

2. If you were to describe a ROTATION of triangle ABC, what information would you need to include in your description?

3. If you were to describe a REFLECTION of triangle ABC, what information would you need to include in your description?

Answers

A translation is when a triangle moves from one location to another while staying the same size/position.

A rotation is when it changes positions, like it can turn upside down or to the side.

A reflection is when it translates over the x or y axis.

Can Someone please explain to me how i do this so i can stop asking for help.

Answers

Answer:

7/2

Step-by-step explanation:

You just convert it to an improper fraction, so you multiply 3 by 2 then add 1, which is 7, then put the 7 over the 2, so it is then 7/2 .

Answer:

the 2nd one

Step-by-step explanation:

7/2

Help ! !!!!!!!!!!!!!!!!

Answers

Answer:

Step-by-step explanation:

4/1 x  1/3= 1 1/3

Help i will give brainliest for correct answers only

Answers

answers for number 2 = -16, 15, 9, 12, and -15

just add nine to each number on the x side

2. y = 2, 15, 9, 12, 3
3. y = -9, -81, -18, 63, -45
4. y = 54, -63, -36, 9, 0
5. y = 12, -6, 9, 2, -1
6. y = 40, 52, -56, 4, 16
7. y = -27, 17, 5, -23, -7
8. y = -50, 13, -22, 20, 34
9. y = -35, -40, -5, -15, 45
10. y = -56, -8, -40, 24, 16
11. y = -9, 3, -4, -2, -1
12. y = 60, 4, -68, -76, -12

Which of the following is a true statement?

A.) A number is divisible by two and three if the number ends in a 0, 2, 4, 6, or 8.
B.) A number is divisible by three and nine if the sum of the digits is divisible by three.
C.) A number is divisible by nine if the last two digits are divisibly by nine.
D.) A number is divisible by six if the number is divisible by both two and three.

Answers

A hope this is helpful

Answer:c

Step-by-step explanation:

Which inequality is equivalent to 10x – 5y ≤ 30?

y ≤ -2x + 6
y ≤ -2x - 6
y ≥ -2x + 6
y ≥ -2x - 6

Answers

y*greater than for equal to* -2x-6
option d is your answer

pleaseeeeeeeeeeeeeeeeeeeeeeeeeeessssssssssssssssssss

Answers

You kept the movie for 3 extra nights

Answer:

4 1/2 days

Step-by-step explanation:

3.45 plus 1.25 times 5 = 8.45

it says on the final day you pay 7.70 so its 4 1/2

At a store, Lauren selected a watermelon that weighed 38.4 ounces.

Watermelons cost $1.50 per pound
There are 16 ounces in a pound
How much did Lauren's watermelon cost?

Answers

Answer:

$3.60

Step-by-step explanation:

1.50 ÷ 16 = 0.09375

there are 38.4 oz in laurens watermelon, so multiply the cost per ounce by the number of ounces to find the answer

0.09375 × 30.4 = 3.6

Ben and his friends are going to play putt-putt. At one location, they can pay $2.00 for rentals plus $7.50 per game. At another location, it would cost $8.00 for rentals plus $6.00 per game. How many games would they have to play in order for either location to cost the same amount?



What is the best way to set up and solve the word problem?


2+7.50x=8+6x
2 plus 7 point 5 0 x is equal to 8 plus 6 x

6x+2=7.50x+8
6 x plus 2 is equal to 7 point 5 0 x plus 8

7.50x−2=6x−8
7 point 5 0 x minus 2 is equal to 6 x minus 8

6x−2=7.50x−8
6 x minus 2 is equal to 7 point 5 0 x minus 8

Help!

Answers

Answer:

2.00

Step-by-step explanation:

Solve for a.

2 + 2a ≥ 6

Answers

[tex]2 + 2a \geqslant 6[/tex]

[tex]2 - 2 + 2a\geqslant 6 - 2[/tex]

[tex]2a \geqslant 4[/tex]

[tex] \frac{2a}{2} \geqslant \frac{4}{2} [/tex]

[tex]a \geqslant 2[/tex]

Answer:

Isolate the variable by dividing each side by factors that don't contain the variable

Interval Notation:

2,ထ

Inequality Form:

a≥2

Step-by-step explanation:

plz help fasttttt plessssssssss ill mark the right one brainlyest :v

Answers

Answer:

They answer is D.

Step-by-step explanation:

Hope this helps. Have a nice day!

I believe the answer is A .

What is the distance between (1, 3) and (5, 8)

Answers

i think you’d do (5,8) - (1,3) to get (4,5)

(1,3) is shorter than (5,8)

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