Mathematics Middle School

Write an equivalent expression using the associative property



7 + (3 + 8)

Answers

Answer 1

Answer:

(7+3)+8

Step-by-step explanation:

Answer 2
(7+3)+8
Hope this helps:)

Related Questions

Your grandparents give you $1000 for your tenth birthday to invest for your college education. You research some investment companies around town and find one that pays you 4.2% and compounds quarterly. If you leave the money in your account until your 18th birthday, how much money will you have? Show all your work.

Answers

Answer:

$ 13,968.90

Step-by-step explanation:

You are given the money at 10 years oldInvest it until you're 18, so that's 8 yearsThis is compound interest, so use the formula: [tex]A=P(1+\frac{r}{n})^{nt}[/tex]A is the total amount with interestP is the principal or starting amount 10000 dollarsr is the rate (percentage): 4.2%, use the decimal form in the equationn is the number of times you are compounding; in this case, it is compounded quarterly. Quarterly means every quarter of a year or 3 months, so it is compounded 4 times a year, n is 4t is the time, so that's 8 years[tex]A=10000(1+\frac{0.042}{4})^{4\times8}= 13,968.90[/tex]

need the answer to this question quick please!!!!!!!!!

Answers

Answer:D

Step-by-step explanation:If you -2 over 8 then do over 6 and sub by 0 you will have your awnser\\\

Answer:

C because the slope is 1 and the y-intercept is (0,6)

Jonathan looked at the picture frame below and computed the following sum:
8 3/4 + (-4) what value did he find?

a. x
b. 2x
c. y
d. 2y

Answers

Answer:

B

Step-by-step explanation:

The answer is B. You can use a multi step thing

please help ill give whoever answers best brainliest xx

Answers

Answer:

A C D

Step-by-step explanation:

The answer would actually be A C D

Pls help. Last question

Answers

Answer:

180

Step-by-step explanation:

i think

5x-5=20
2x+10= 14

20x14=280


I don’t know if I’m doing this right, but let me know if it is right or wrong!

1. A car dealership pays a wholesale price of $12,000 to purchase a
vehicle. The car dealership wants to make a 32% profit.
By how much will they mark up the price of the vehicle?

Answers

12000 divided by 100 time 32 = $3840

If you explain properly I'll give you branliest.

Ron is planning for the back-to-school rush at his store. Last year he estimated that he would need 168 notebooks, but he sold 200 notebooks. Explain how Ron can find the percent error of his estimate.

Answers

The answer is 16% but I do not have an explanation, sorry.

Answer:

First find the error by finding the difference between the estimate and exact value. Then find the absolute value of the error. Set up a ratio with the absolute error to the exact value. Divide to find the decimal and multiply by 100 to find the percent.

Need helpp fastt plss will give brainliest to who is correct plss helpp

PLSSS HELPP I NEED THE ANSWER CORRECT

Answers

the answer is 42cm. the area of the rectangle in the middle is 30cm. the area of the triangle on the left is 6cm because the formula is 1/2Bh. B=2 and h=6, so 12/2=6. there are 2 of the triangles however, so you add 30+12=42

answer plz
and god bless you

Answers

its 7(1 + 3) rjjdhshshahwhjwjwjs

Answer:

3(1+7)

Step-by-step explanation:

If a point is on the the orgin of a coordinate table, would it also be on the y-axis?

( Giving Brainlest to the best answer )

Answers

Yes i think because it’s in the center so

Answer: Yes,

Step-by-step explanation: Think about it, its on the orgin so it would really be on both the x and y-axis.

Hope this helps! Have a good day!

helppppppp pleaseeeee!!

Answers

Increasing: positive slope
Decreasing: negative slope
Constant: zero slope.

Hope this helps pls brainliest

Answer:

increasing-positive slope

decreasing-negative slope

constant-zero slope

Step-by-step explanation:

Positive slope would be the graph increasing because the line would be going up and to the right.

Negative slope would be the graph decreasing because it would be going down, and to the right.

Zero slope would be constant since it does not change.

Hope this helps! If you have any questions on how I got my answer feel free to ask. Stay safe!

Duffy completed a 50-meter dash in 36 seconds. That was 90 percent of the time it took Paul to complete it. What was Paul's time?


A. 36 seconds

B. 42 seconds

C. 40 seconds

Answers

Answer: C

Step-by-step explanation: Cross multiply.

36/90 = x/100

3600/90 = 40

Circle the function types that have an absolute maximum or minimum. Choose all that apply.
linear functions
constant functions
quadratic functions
exponential functions
linear absolute value functions

Answers

Answer:constant functions

Step-by-step explanation:

The answer is constant functions

What is the ratio of the corresponding side lengths?
4:9
4:2
26:26
4.5:2

Answers

Answer:

4:2

Step-by-step explanation:

Answer:

4 : 2

Step-by-step explanation:

We are given ΔABC ≅ ΔA'B'C'.

When two triangles are congruent, their corresponding sides and angles are congruent.

Since, the sides of the triangles are in relation,

AB = 2 × A'B' and side BC = 2 × B'C' i.e. 4 = 2 × 2 and 9 = 2 × 4.5.

Therefore, the ratio of the corresponding sides are given by 4 : 2 and 9 : 4.5 i.e. 2 : 1.

Since, the ratio of the corresponding sides comes out to be 2 : 1 = 4 : 2.

Hence, the ratio of the corresponding sides is 4 : 2.

A triangle has vertices A (-2, 3), B (0, 0), and C (1, 2). What are the coordinates of the vertices of the triangle if it is dilated by a scale factor of 3?



A.
A’ (-6, 9); B’ ( 3, 3); C’ (3, 6)

B.
A’ (1, 6); B’ ( 3, 3); C’ (4, 5)

C.
A’ (-6, 9); B’ ( 0, 0); C’ (3, 6)

D.
A’ (1, 6); B’ ( 0, 0); C’ (4, 5)

Answers

C if you mutiple by 3 you get c

Answer:

i think it is A or it could be B

Step-by-step explanation:

7x4 +90+600x8999+21 x 5/7

Answers

Answer:

5399533

Step-by-step explanation:

Ehh

haha you could’ve just typed it on a calculator but the correct answer is 5399533

A bag contains 5 yellow marbles,2 blue marbles, and 3 other marbles. If Jerome reaches into a bag without looking and picks a marble at random, what is the probability that it is blue? (Alegbra expression)

Answers

Answer:2/10

Step-by-step explanation:

Answer:

unlikely

Step-by-step explanation:

There are 10 marbles altogether, 5 are yellow, 2 are blue, and 3 are random.

There are 3 more yellow marbles than blue marbles.

There is 1 more random marble than blue marbles.

Therefore, it is unlikely Jerome will get a blue marble.

(I just realized you asked for an Alegbra expression.. sorry)

Plz Answer This Mathematics Question??? NEED HELP ASAP

Answers

8 would be the answer because 8 to the second power is 64. This what the question is asking for I hope.
The answer for this equation is 8

14. Define a Variable

Answers

Answer: In mathematics, a variable is a symbol which functions as a placeholder for varying expression or quantities, and is often used to represent an arbitrary element of a set. In addition to numbers, variables are commonly used to represent vectors, matrices and functions

Step-by-step explanation:A symbol for a value we don't know yet. It is usually a letter like x or y.

Example: in x + 2 = 6, x is the variable.

Why "variable" when it may have just one value? In the case of x + 2 = 6 we can solve it to find that x = 4. But in something like y = x + 2 (a linear equation) x can have many values. In general it is much easier to always call it a variable even though in some cases it is a single value.

The literal numbers like- x,y,z etc. are variables.

Eg - 4x - 7 = 5

Here in this example x is the variable.

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Answered by:-Cutest Ghost (・◡・)

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The Carter family went to Brixx pizza for dinner Saturday night. Their meal costs a total of $54.65 and they want to leave their waiter a 20% tip. How much should the tip be?

Answers

$11 if you round up but the answer is $10.93 because $54.65 x 0.2 = $10.93
The answer is $10.93

What is the sum 1 1/6+2 3/8=

Answers

Answer:

3 13/24

Step-by-step explanation:

Rewriting our equation with parts separated

Start by taking apart the fractions and figuring it out one by one.

1 1/6 + 2 3/8

1+2= 3! that's the start then you move on

the LCD is 24, so it's.on the bottom!

Find the LCD and you will get 4/24 + 9/24= 13/24

then add the 3

and the answer is

3 13/24

Answer: 3 13/24

I hope the answer helps you!

Mark me as brainiset if you think it is right

Which could be used to evaluate the expression Negative 6 (4 and two-thirds)?
(Negative 6) (4) + (negative 6) (two-thirds)
(Negative 6) (4) times (negative 6) (two-thirds)
(Negative 6 + 4) + (Negative 6 + two-thirds)
(Negative 6 + 4) times (negative 6 + two-thirds)

Answers

Answer:The answer is (Negative 6) (4) + (negative 6) (two-thirds)

Step-by-step explanation:

So basically, Negative 6x4= negative 24. Then you have to add Negative 6 x two-thirds. So 6 times two-thirds equal 4. So now you just add 24 and 4. And that equals 28. :)

The answer I (negative 6) (4) + (negative 6) (two-thirds)

Eric and Shiloh each have a savings account. The ratio of Eric’s account balance to Shiloh’s account balance is 4:3. Together they have a total of $140 in their accounts. Use the tape diagram below to help you determine the balance of Eric’s account. [Type your answer as a number.]

FYI: there are seven bars down below, i dunno how to put the pictures there bc im on comupter

Answers

Answer:21

Step-by-step explanation:

ASAP!
Lesson 4 Problem-Solving Practice

Add and Subtract Unlike Fractions

MARBLES For Exercises 1–4, use the table showing colors of marbles.

Color
Fraction
Red
350
Blue
325
Green
310
Yellow
125
Pink
110
Purple
15
White
950



1. What fraction of the marbles are red or blue?

2. What fraction of the marbles are green or purple?

3. What fraction represents how many more purple marbles there are than yellow ones?

4. What fraction represents how many more white marbles there are than pink ones?

5. GRADES If13of the students got an A and25of them got a B, what fraction of the students got an A or a B?

6. WATER AEROBICS If 58of the people in a water aerobics class are over age 65 and 14 of the people in the class are under age 40, what fraction of the people in the class are either over 65 or under 40?

Answers

Lol that’s a lot to take in

What goes in the table?

Answers

well a chicken has 2 legs so do 2 times however many chickens there are to get the total of chicken legs. a pig has 4 legs so do 4 times however many pigs there are to get the total of pig legs. once u have those answers, do the total of pig legs plus the total of chicken legs to get your total of legs. for the number of heads, do the number of chickens plus the number of pigs.

Which of the following letters drawn on a coordinate plane would represent a function?

A) T
B) F
C) B
D) V

Answers

D)V

Hoped this helped!

Answer:

V

Step-by-step explanation:

Any vertical line passing through it would only touch it once.

As always, I need help I need to check my answers for hw. WILL GIVE BRAINLIEST!!! DUE TODAY!!! I WILL GIVE THANKS, FIVE STARS< AND EVERYTHING!!! Please and thank you. (It's another problem)

Answers

Answer:

7/5 cm seems legit

Answer:

Yes it is 7/5

Step-by-step explanation:

Number 11 and 12 I will add points!

Answers

Answer:

11 is 27m i can't see the question for 12 tho

Step-by-step explanation:

Which set of expressions below does not represent equivalent expressions?

a. 8(3x + 7) and 8(3x) + 8(7)

b. 3(8x + 7) and 11x + 10

c. 7(3x + 8) and 7 · 3x + 7· 8

d. 3(7x + 8) and 21x + 24

Answers

It’s b, the other expressions equal each other :)

If a 6-ounce bottle of salad dressing costs $3.99, what is the cost per ounce?

Answers

Answer:

1.50

Step-by-step explanation:

divide 6 by 3.99

Answer:

1.50

Step-by-step explanation:

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