Mathematics Middle School

which expression has a value of 30 when x = -1 and y = 3?

Which Expression Has A Value Of 30 When X = -1 And Y = 3?

Answers

Answer 1

Answer:

B. (x - 3²)(y-6)

Step-by-step explanation:

Find the expression with a value of 30;

 when x  = -1 and y = 3:

   A.  (x - 3²).y-6

           (-1 - 9).3-6 = -10 x 3 -6  = -30 - 6 = -36

 B.  (x - 3²)(y-6)

          ( -1 -3²)(3 - 6) = (-1 -9)(-3) = 30

C.  x - 3² . (y-6) = -1 - 9.(3-6)

                         = -1-9.-3

                         = -1 - 9 x -3

                         = -1 + 27

                         = 26

D. x - 3².y-6 = -1 - 9. 3 - 6

                   = -1 - 27 - 6

                   = -34

Answer 2
B
refer to pic for steps

Related Questions

Need your guyzes halp, no false answers and I will give you most of my points
The bike store marks up the wholesale cost of all the bikes they sell by 30%.

Andre wants to buy a bike that has a price tag of $125. What was the wholesale cost of this bike?
$

If the bike is discounted by 20%, how much will Andre pay (before tax)?
$

How much will the store make off the sale of the discounted bike?
$
Thaks Guys, I purple you!

Answers

Answer$32

Step-by-step explanation:

125 divided by 2 = 31.25 +00.05+32

Answer:

the whole sale price of the bike was $91.15

Step-by-step explanation:

130% = $125

= $125/1.3

= $91.15

PLS HELP ME! I AM HORRIBLE AT MATH

Answers

Answer:If you need help,get a tutor,Or just ask the question in specific terms and People can help you answer it.And you say you are horrible at math.Don’t say that.you are smarter than you think.you may not be able to do this,But that’s ok.as long as you keep trying & getting help to understand,you’ll be able to master it.don’t worry

Answer:

Simplfiy it down.

Step-by-step explanation:

EX: M= 2/1 or 2. I really hope this helped.

Explain the pattern that you notice when dividing by 10,100 and 1,000
Pls do NOT do this : ajndauidnsauanan in answer place
And pls do NOT put FILES in answer place.
Tysm

Answers

Answer:

Step-by-step explanation:

An easier way to do this type of problem, is to break it down,

10,000/1,000 is the BIG SCARY Problem, think of it like 10/1,\

1 goes into 10, 10 times,

So, what is 1,000x10?

10,000

Answer, 10

Pattern, is that is decreases by 1,000 every time and now you know

I really do not know my order of operation

Answers

for this first picture it’s the first one and last one. this is because they just switched the order of the numbers and where they are, the answer doesn’t change

Convert 45 dollars earned in 3 hours to a unit rate. Write your answer using the $ sign and the word "per".

Answers

45$ divided by 3 which is 15 so per hour you make 15$ an hour.
Answer = $15 per hour

Explanation:
$45/ 3 = $15
So, the unit rate is 15

Determine which statement is true if JKLM ~ NOPQ

Answers

Answer:

B / 2nd answer

Step-by-step explanation:

if the orders are correct, then it should be B, but there should also be a picture just in case

An account with an initial balance of $4000 earns 6.5% interest for 5 years.
What is the ending balance?
Enter your answer in the box. $.

Answers

Answer:

The balance in the bank after 5 years of 6.5% interest is $5,300.

Step-by-step explanation:

*Presuming that this is not a compounding interest the interest would just multiply by the even balance.*

So every 5 years the balance earns 0.065 of 4,000 dollars.

This would make our equation:

4000 + (4000  x .065 x 5 )

= 4000 + (1300)

= 5300

The balance in the bank after 5 years of 6.5% interest is $5,300.

Answer:

5,300

Step-by-step explanation:

Choose the expression that is equal to 28.3.
33 + 27.2 – 6.8 + 24 – 3.1
33 + 27.2 – (6.8 + 24 – 3.1)
[33 + (27.2 – 6.8)] + 24 – 3.1
33 + 27.2 – (6.8 + 24) – 3.1

this is 6th grade work. show how you got it bc i need to show my work

Answers

Answer:none of them

Step-by-step explanation:

None of them equal 28.3. The closest is number 3, which is 26.3. Do the parenthesis, then the brackets, then add and subtract

None of them equal 28.3. Is there a chance you miss read the problem somewhere? Or is your teacher into doing trick questions?

(Graphing inequality) where do I go! Left or right!!

Answers

Answer:

It depends what the problem requests

When the slope is positive

The design plans for a new concert hall show elevations relative to ground level at 0 feet. The elevation of the balcony floor is 37 feet, and the elevation of the basement floor is –17 feet.

Which TWO statements about the distances of the balcony and basement from ground level are true?
Select TWO that apply.

A
The basement floor is 17 feet above ground level.
B
The balcony floor is 37 feet above ground level.
C
The balcony floor is 37 feet below ground level.
D
The basement floor is 17 feet below ground level.

Answers

Answer: B and D

Step-by-step explanation:

-17 means below, so the basement floor is 17 below ground level, and no symbol means positive, meaning above, so the balcony is 37 feet above ground level.

B,D because negative (-) means below so it means the basement is 17 below and the balcony did 37 feet above

How do i find a mean in a data set?

Answers

Answer:

Add them all up then divided by how many numbers there are

Step-by-step explanation:  :)

Answer:

How do you find the mean?

The mean is the average of the numbers. It is easy to calculate: add up all the numbers, then divide by how many numbers there are.

Step-by-step explanation:

Find 3y+x if 2x-3y=12 and 8x+3y=14

Answers

Answer:

check the photos.

but if you substitute your x and y into the equation, your answer will be = -6/7

2x-3y=12 8x-12y=48
8x+3y=14 8x+3y=14

-15y=34

HELP PLEASE WILL BE MARKED BRAINLIEST

21) In a local animal sanctuary, there are 48 deer and 64 monkeys. Find the ratio of deer to monkeys.


--------------------------------------------
22) Gerry scored 56 in Math and 84 in Science. Find the ratio of his scores in Math to Science.


--------------------------------------------
23) A fruit seller bought 75 mangoes and 125 apples from vendor. Find the ratio mangoes to apples bought.

Answers

Answer:

:Zzz:

Step-by-step explanation:

21) 48:64 Simplified 3:4

22) 56:84 Simplified 2:3

23) 75:125 Simplified 3:5

21=108.4

22)1.5

23)17.8

PLEASE READ AND PLS DONT REPORT BECAUSE THIS NEEDS TO BE NOTICED

Answers

Answer:

thats horrible why would some one want to do that like that person needs to get a life

Answer:

seems to be like all other men on here

Step-by-step explanation:

help me pls my mom is yelling at me to do this and i have no idea how to do it.

Answers

Answer:

10x+y

Step-by-step explanation:

The answer is 10x + y

Simplify the expression. Write your answer as a power. a^3⋅a^3

Answers

Step-by-step explanation:

a³(a³)

a⁶

Add the exponents when there is multiplication.

a^3 • a^3 = a^6
This would be the case due to the multiplying exponents property, where
x^a • x^b = x^a+b

In the summer reading program, a participant earns 50 stars for reading 10 books. The library tracks the number of stars (y, vertical axis) and books (x, horizontal axis) on a graph. Which statements are correct? A) Point (5, 1) represents the unit rate. B) Point (1, 5) represents the unit rate. C) Point (0, 50) represents the unit rate. Eliminate D) Point (100, 20) represents reading 20 books. E) Point (20, 100) represents reading 20 books.

Answers

so basically you need to go and basically go ask someone else so they basically

How to find volume for triangular prisms?

Answers

Answer: base A x base b x base C x height

Step-by-step explanation:

Name the missing coordinate(s) of each triangle

Answers

Answer:

13) C (a, a)  Y (a, 0)

14) B (0, b)  P (a, 0)

Step-by-step explanation:

13) Y lies on x axis so it is Y(a,0)

ZY = YC = a

so for C coordinates are (ZY,YC) = (a, a)

14) B lies on y axis so it is B(0, b)

BK = BP = [tex]\sqrt{a^{2} + b^{2} }[/tex] = distance between two points

so P is (a, 0) as it is same distance and on positive side of x axis

13- C (a,a) Y (a,0)
14- B (0,b) P (a,0)

Which equation represents a proportional relationship?

Answers

Answer:

I believe the answer would be A

Step-by-step explanation:

try it tell me how it goes

Answer: y=32x

Step-by-step explanation: I THINK ITS RIGHT?

Ok,so I need help on exactly how to do this questions on my homework…I don’t get it.

Answers

Answer:

11. 15  12. 8

Step-by-step explanation:

ok so

the big ones equal = 3

and small one equal =1

also red means negative and orange postive

so 9+ 6 equals postive 15

and 12- 4 = 8

Answer:

9 x 6 = 54

24 x -4 = -96

Step-by-step explanation:

If what you are saying is correct:

The first one is 9 x 6 = 54

The second one is 24 x -4 = -96

-Chetan K

Solve for x.
4 (x + 1 1/3) = 9 2/3
Enter your answer as a mixed number in simplest form in the box.

Answers

Answer:

The simplest way to put is 29/3

13/12

This should be in simplest form

PLEASE HELP ILL GIVE BRAINLY (THIS IS TIMED!)

Answers

Answer: 16

Step-by-step explanation:

(50 - (2x9)) / 2  = 16

Answer:

5.5 in ?

Step-by-step explanation:

If tony made 378$ for 18 hours of work how many hours would he work to make 231$?

Answers

Answer:

11

Step-by-step explanation:

378 / 18 = 21 // Money p/h

231 / 21 = 11

Answer:

11 hours

Step-by-step explanation:

378/18

21

231/21

11

6∙4÷(2^3-6)

A.12

B.8

C.4

D.1

Answers

Answer:

3.2

Step-by-step explanation:

first expand the bracket, (2^3 -6 )= (2 x 2 x 2) - 6= 8 - 6 = 2

so, 6.4/2= 3.2

please help. I'll give you extra points.

Answers

Answer:

See below

Step-by-step explanation:

Part A: For the current year, we notice that the price of corn is directly proportional to the number of bushels at a rate of $8 per bushel. We know this because 2 bushels * $8 = $16, 4 bushels * $8 = $32, and so on.

Part B: The rate for the previous year is $6 per bushel, so the current year rate is $2 more than the rate for the previous year

Wow great answer!! Keep going

42,765 divided by 7 ty

Answers

Answer:

Exact Form:

42765

7

Decimal Form:

6109.28571428....

Mixed Number Form:

6109

2

7

Answer:

6109.2

Step-by-step explanation:

it is a terminating decimal.

Easy 100 points if you do all five questions.
plz help

Answers

Answer:

What are the five questions

Step-by-step explanation:

Answer: Where are the questions??? Please write them in the reply so I can answer them.

Can u solve this problem?

Answers

Answer:

$20

Step-by-step explanation:

Answer:

[tex]4[/tex] dollars

Step-by-step explanation:

Let's look for how much money they got back

Casey - 20 percent of [tex]40[/tex] is 8

[tex]40-8=32[/tex] dollars that Casey got back

Brayden - 30 percent of [tex]40[/tex] is 12

[tex]40-12=28[/tex] dollars that Brayden got back

Let's see how much more money Casey got back compared to Brayden

[tex]32-28=4[/tex] dollars

Brainliest please :)

How much is 1500 sq inches as normal inches? plz hurry​

Answers

Answer:

15000 Is the sq in normal inches

square root of 1500 is about 38.7
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