Mathematics Middle School

Which number choice represents an equivalent number sentence that uses the associative property to rewrite "(4 + 5) + 8"?
A. 4 + 8 + 5
B. 4 + 13
C. 4 + (5 + 8)
D. 17

Answers

Answer 1

Answer:

A 4 + 8 + 5

thats the answer thank you

Answer 2

Answer:

Your answer is: A & C

Step-by-step explanation:

Hope this helped : ) Even though I probably wont get brainiest, please at least rate me : )

Related Questions

Solve for x.

x=.................

Answers

Answer:

X=2

If you substitute 2 in for x, you get 35 for both angles. Since both sides are the same, the answer has to be 2.

X= 2 that’s basically it

Sales tax is calculated as a percentage of the sales price. If sales tax is 6%, what is the sales tax on clothing that costs $180?

$6.00
$9.80
$10.80
$18.60

Answers

Answer is $10.80
180 x .06= 10.8

please help i got so much homework and this is only a small portion of it!
And please label #1 or 2
so for the dance committee put #1
and for Jasmine put #2

Answers

Answer:

1) the equation would be .80x+65 is less than or equal to 125. x= amount of balloons they can buy. the answer for the equation would be less than or equal to 75.

2) 4.8 miles per hour

Step-by-step explanation:

1. 60 divided by 0.80

Volunteers at same school use some of the student councils savings for a special project. They buy 7 backpacks for $8 each and fill each backpack with paper and pens that cost $5. By how much did the student councils savings change because of this project?

Answers

Answer: 91

Step-by-step explanation:

The 7 backpacks cause a a change in the council's savings of the sum:

The 7 paper and pens cause a change in the council's savings of the sum:

The total change in the council's savings is.

The 7 backpacks cause a a change in the council's savings of the sum:

Answer:

Mmm 91

Step-by-step explanation:

7 backpacks that are $8 each so 56

They fill each backpack with things that cost $5 and there are 7 backpacks so 35

Add it up and that equals $91

The student council's savings changed by $91 because of this project

Hopes this helps dude ^-^

PLZZZZZZZZZZZZZZZZ HELP ME i begging YOUUUUU !!!!!!!!!!!!!!!!!!!!!!!!!!!
ITS DUE TODAY!!!!!AT 15 MINS

Problem 1: Evaluate each expression below. (You can take a picture your work and upload to this slide)


B. -0.3(4+(-1.6))-6 ½

Answers

Answer:

=

107/135

(Decimal: 0.792593)

Step-by-step explanation:

Answer:

a. 19/20

B. -5.78

Step-by-step explanation:

Dividing by a fraction is the same as multiplying by its reciprocal. i.e. [tex]\frac{-\frac{2}{3} }{-\frac{8}{9} } =-\frac{2}{3} *-\frac{9}{8} = \frac{3}{4}[/tex] to add to 1/5, change both denominators to 20.

[tex]\frac{3}{4} * \frac{5}{5} = \frac{15}{20}[/tex]

[tex]\frac{1}{5} *\frac{4}{4} =\frac{4}{20}[/tex]

[tex]\frac{15}{20} +\frac{4}{20} = \frac{19}{20}[/tex]

B. Convert all to decimals, then work from the inside out because of the parentheses. -1.6 + 4 = 2.4, 2.4(-0.3) = -0.72, -0.72 - 6.5 =  -5.78

HELPPP PLEASE WILL MARK BRAINLEST IF RIGHT!!!

Answers

Answer:

C) 18 inches

Step-by-step explanation:

lets call the shortest side x.

that means the second side is 3x

the third side is x + 5

the perimeter of the triangle is 95 inches.

using this information, you can make the following equation:

x + 3x + x + 5 = 95

subtract 5 from both sides.

x + 3x + x = 90

5x = 90

x = 18

the shortest side is 18 inches long

The Quik-Clean Car Wash charges $15 for a car wash plus $2.50 per gallon for unleaded gasoline. The Mighty Clean Car Wash charges $10 for a carwash plus $2.75 per gallon for unleaded gasoline. Josh is comparing the cost of having his car wash plus filling up his tank with gas at each business. How many gallons of gas would he need to purchase for the cost to the same at each car wash?

Answers

The first one is 6 gallons and the other one you can’t because if josh gets 3 gallons of gas he’s going to have to pay $8.25 but if he gets 4 gallons he’s going to have to pay $11
Josh would need to purchase 9 gallons of gas at the Quik-Clean car wash and 10 gallons of gas at The Mighty Clean Car wash. 15+(2.50x9)=37.50
10+(2.75x10)=37.50

In a piggy bank, there are 13 dimes and 19 pennies. Find the percentage of each coin.

20 points

Answers

Answer:

About 40% dimes and 60% pennies

Step-by-step explanation:

40% dimes i think 50% for pennies.sorry if I’m wrong I tried :)

Help what was the average change in elevation per min was ____ ft per min

Answers

Answer:

i do not know but i want to get more points so sorry

Step-by-step explanation:

The commutative property states:
A. You can add numbers in any order and get the same answer.
B. You must add numbers in order from left to right.
C. You can change the grouping of numbers that are added and get the same answer.
D. If a sum or two numbers is multiplied by a factor, you can multiply each number by that factor and then add the products.

Answers

A. You can add numbers in any order and get the same answer.

Answer: I think it’s earthed A or C

Step-by-step explanation:

A cabin has a water tank that holds 420 decaliters. How much water does the tank hold in centiliters?
A.420cl
B.420,000cl
C.42,000
D.4,200

Answers

Answer:

deci means 1/10 and centi means 1/100 so multiply 420 by 10 and get 4,200

Step-by-step explanation:

I put a photo of how many centiliters is from deciliters

Answer:

B. 420,000cl

Step-by-step explanation:

1 decaliter = 1,000 centiliters

please Help ASAP
Find the SLOPE

Answers

12 is the answer!!!!!
Yea 12 is the answer because if you

Hey can you help me thanks its due today!!! :DPLZZZZ


1. A quotient is negative if the divisor and the dividend have______sgins.


2. A quotient is positive if the divisor and the dividend have_____sgins


3.Jared lost a total of $9.00 on his investment over 2 months. He lost an equal amount of money each month.What expression represents the amount of money he lost per month?What does yous answer tell us?


4.Grandpa Ernie is shrinking! Over the past 4n years, his height decreased by a total of 2.4 cm. It decreased by the same amount each year. What was the change in Grandpa Ernie's height each year? Show all your work.

Answers

1. Negative
2. Positive
3. 9=2m m= the money he lost each month. M= 4.50, Jared lost $4.50 each month
4. He lost 0.6 cm each year. You divide 2.4 ( the total height lost) by 4 ( the amount of time) and get 0.6 ( the height he lost each year)

Hope this is helpful!
The answer to the first question is equal signs

help


The table below shows the amount of money Sarah spends for a craft demonstration.

Answers

Answer:70

Step-by-step explanation:

there should be about 30 people simple math bro. Then for money its 78$

Find the slope of each side. Express your answers as simplified fractions, if necessary.

The slope of AB is
The slope of BC is
The slope of CD is
The slope of DA is

Answers

Answer:

AB= 3/3 simplified= 1

BC= 2/4 simplified = 1/2

CD= 3/3 simplified = 1

DA= 2/4 simplified =1/2

Step-by-step explanation:

the answers is what the person commented

what is the answer to -36 ÷ 4 =

Answers

Answer:

-9

Step-by-step explanation:

36/4=9, so you just add the negative sign to get -9.

Answer:

The answee is -9 if i'm correct!

Step-by-step explanation:

Choose the best estimate for the capacity of a kitchen sink. A. 2 fl. oz B. 2 pt C. 2 qt D. 2 gal

Answers

Answer:I think it is two gallons.

Step-by-step explanation:

definitely 2 gallons

What will be the new position of the given point (7, 4) after translation of 4 units up?

a (7, 8)
b (11, 8)
c (7, 4)
d (11 ,4)

second question: What will be the new position of the given point after being translated up 1 unit.

Answers

the answer is a

hope this helped

The new coordinates of the point will be (7, 8)

What are coordinates?

A pair of numbers called coordinates are used to locate a point or a form in a two-dimensional plane. The x-coordinate and the y-coordinate are two numbers that define a point's location on a 2D plane.

Given, the new position of the given point (7, 4) has been achieved after the translation of 4 units up

Since translation upward in the cartesian plane means it is moving along the y-axis and hence its y-coordinate is changed. So, if a point is translated units up, its y-coordinate increases by a unit, and for a point (x,y), it changes to (x,y+a)

Thus,

The new coordinates of the point will be = (7, 4 + 4)

The new coordinates of the point will be = (7, 8)

Learn more about coordinates here:

https://brainly.com/question/20282507

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In what ways is it useful to develop an algorithm for adding and subtracting rational numbers?

Answers

Answer:

To add or subtract these rational numbers, you first need to change your rational numbers so that they share a common denominator. Once you have a common denominator, you can then go ahead with the addition or subtraction of just the numerator part

Step-by-step explanation:

The algorithm is shown below

What is Algorithm?

An algorithm in math is a procedure, a description of a set of steps that can be used to solve a mathematical computation.

For example, a step-by-step procedure used in long divisions is a common example of a mathematical algorithm.

To add or subtract these rational numbers,

First make sure that both the rational number must have same  denominator.

After that having common denominator proceed with subtraction or addition.

The subtraction or addition only be performed with numerator not with denominator.

Learn more about rational number here:

https://brainly.com/question/17450097

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Please answer the following questions.

Answers

Answer: The decimal for 2/3 is 0.6 and 3/8 is 0.375 as a terminating decimal

Step-by-step explanation:

Answer:

4. The answer is -9.9 meters.

5. I'm not sure sorry

6. The answer is A. 0.6 repeating.

7. The answer is C. 0.375, a number that terminates.

Step-by-step explanation:

Claudio keeps track of how his bank account changes over three weeks. (You can take a picture your work and upload to this slide)
HEY CAN SOMEONE HELP ME PLZZZZZZZZ

1. At the end of week 3, Claudio has $0 in his bank account. How much did he have at the start of week 1?

2. What is the average amount of money Claudio had in his account over the three weeks?

Answers

Is there a chart, graph, or more info?
Is there any more info

help 1st person gets brainlist more info inside the file / picture

Answers

Answer:

b. 28000 times 400 equals 11200000

c.9000 times 60 equals 540000

d.900 times 600 equals 540000

e. 40000 times 500 equals 20000000

Step-by-step explanation:

Can someone pless help me on this its due by 12:00am tonight
I WILL GIVE BRAINLIEST

Answers

They are similar in shape but in size the aren’t. There both only have acute angles and are next to each other.
Hand it over kiddo hahaha

Please Help Find the correct one and please show your work!!!

Answers

Answer:   c because it got 4  and going down equally i guess

Step-by-step explanation:

Answer:

it’s D because the x side is 5 going up and the y side is 8 headed down.

Which of the following results in the expressions 0.43 times 52 ?

(A) 52% of 0.42
(B) 43 of 52%
(C) 0.52 of 43%
(D) 43% of 52

Answers

The answer is 43% of 52. So D

Answer:

I'm pretty sure the answer is D

Step-by-step explanation:

Percents are decimals and the only one that shows 43 as a percent is D while not turning 52 into a decimal.

two angles in a triangle have measures of 62 degrees and 15 degrees. What is the measure of the third angle.

A.92 degrees

B.47 degrees

C.77 degrees

D.103 degrees

Answers

Answer:

the answer is 103

Step-by-step explanation:62°+15°=77° degrees

Then it is 180° - 77° degrees

180°-77°=103°

The measure of the third angle of a given triangle is 103°.

Given that the measure of two angles is 62° and 15°.

We need to find the measure of the third angle.

What is the angle sum property of a triangle?

The angle sum property of a triangle states that the sum of interior angles of a triangle is 180°.

Let the measure of the third angle be x.

Now,  62°+15°+x=180°

⇒x=180°-77°

⇒x=103°

Therefore, the measure of the third angle is 103°.

To learn more about the angle sum property of a triangle visit:

https://brainly.com/question/8492819.

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Find the value of |-4| - 5 · 2(-1 + 3)

Answers

The correct answer is-16

Answer:

-16

Step-by-step explanation:

I had it wrong the first time, but I looked it up and yes, it is -16.

SOLVE
[tex]\frac{12}{-4}[/tex]
[tex]\frac{-12}{4}[/tex]
[tex]-(\frac{12}{4})[/tex]

Answers

Answer: 12/-4= -3. -12/4=-3. -(12/4)= -3

Step-by-step explanation: All equal -3 just divide all of them to get the answer.

all you need to do is divide them that’s how you solve a fraction

Can anyone Help me with this please

Answers

Answer:

A is top left     E is bottom left     C is bottom right        G is top right

Step-by-step explanation:

Here ya go.
Good luck!

negative 3 and one-fifth plus left parenthesis negative 6 and one-half right parenthesis
A. negative 3 and two-sevenths
B. negative 3 and seven-tenths
C. negative 9 and two-sevenths
D. negative 9 and seven-tenths

Answers

The answer is D! :)

Answer:

its D

Step-by-step explanation:

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