Mathematics Middle School

Which expression is equivalent to 12a + 8?

4(3a + 2)
4(3a + 8)
6(6a + 2)
6(6a + 8)

Answers

Answer 1

Answer:

4(3a+2)

Step-by-step explanation:

Since 4 is on the outside of the parenthesis, you have to multiple everything inside of the parenthesis by 4 which would leave you with 12a+8 which is the exact same as the expression in the question

Answer 2

Answer:

4(3a + 2)

Step-by-step explanation:

apply the rule a(b+c) = ab+ac

Related Questions

Help!!!!! This is the last one.

Answers

Answer:

C. 12 pages

Step-by-step explanation:

Doreen can get done 2 pages in 5 minutes. there is 30 min in half an hour so 5÷30=6

6x2=12

sorry I am not The best in explaining.

i think it’s 6. because it’s 60 min / 5min = 12 / 2 = 6

What should the following rate be divided by to convert it to a unit rate?

6 inches
________
12 hours

Answers

Answer:

Unit rate is a rate that has 1 as denominator.

Given the rate: 6 inches / 12 hours, we have to divide numerator and denominator by 12 to transform the denominator in 1, as follows:

\frac{6}{12} = \frac{6/12}{12/12} =

12

6

=

12/12

6/12

= 0.5 inches/hour

TIMED UNIT TEST

Hector must find the sum of 50 + 83 + 50 by using mental math. Which property allows Hector to simplify the equation to 50 + 50 + 83 and find an equivalent sum?


associative property
commutative property
distributive property
identity property

Answers

distributive property
because you can move the numbers around to get your answer

PLEASE HELP, ASAP!!! I WILL GIVE A THANKS, 5-STAR RATING, AND BRAINLIEST!!!
*Also, please include the coordinates of the new line and fill the blanks*
*If can't do all, at least do half*

Answers

Number 7 I think it is not sure

WILL GIVE BRANLIEST! Make sure you use step by step explanation.

Answers

Answer: (2,3)

Step-by-step explanation:      

trust me

A stone is dropped off
the edge of a cliff, and it falls for 4.8s before striking
bottom. Approximately how far above the bottom is
the cliff edge, assuming zero air resistance?

Answers

Answer:

y=(1/2)at^2

y=(1/2)(9.8 m/s/s)(4.8 s)^2

y=60.025 m

Step-by-step explanation:

Sry if not right

Tell if the ratios form a proportion

Answers

Answer: false

Step-by-step explanation:

(b+13)/2 = 5b/1.5
solve for b using scale factor.
Guys I'm completely lost... Can you please show your work so I know how to get the answer for future problems like this!! ​

Answers

Doesn’t look middle school to me

Answer:

0

Step-by-step explanation:

(b+13)/2=5b/1.5

We move all terms to the left:

(b+13)/2-(5b/1.5)=0

We add all the numbers together, and all the variables

(b+13)/2-(+5b/1.5)=0

We get rid of parentheses

(b+13)/2-5b/1.5=0

What is the length of the hypotenuse of the triangle?

Answers

Step-by-step explanation:

Hey there!

Here;

ABC is a Right angled triangle.

Taking reference angle as angleA.

Now;

Hypotenuse (h) = AB

Perpendicular (BC)= 24 ft.

Base(AC)= 10 ft.

Now, Using Pythagoras relation;

[tex]h = \sqrt{ {p}^{2} + {b}^{2} } [/tex]

Put all values.

[tex]h = \sqrt{ {24}^{2} + {10}^{2} } [/tex]

Simplify it.

[tex]h = \sqrt{576 + 100} [/tex]

[tex]h = \sqrt{676} [/tex]

Therefore, h= 26ft.

ANS: OPTION A.

Hope it helps....

Answer:

A. 26ft

Step-by-step explanation:

h= 26ft

Which algebraic expression represents “the apples were divided equally into seven boxes”? 7 + a 7a StartFraction 7 Over a EndFraction StartFraction a Over 7 EndFraction

Answers

Answer:

ITS D

Step-by-step explanation:

Answer:

The answer is D on      e d g e n u i t y

Step-by-step explanation:

2. y= -3x+8 and 6x+2y= -10 pls help!! slove as (x,y)

Answers

X=-1
Y=11 lmk if I should change something
X is -2.6
Y is 3
Hope this helped:)))

Analyze the graph below and answer the question that follows.





Carefully study the chart above. In which countries are a majority of people Christians?

A.

Barbados only

B.

Barbados and Brazil only

C.

Barbados, the Dominican Republic, Brazil, and Mexico

D.

In none of the countries are a majority of people Christians.


Please select the best answer from the choices provided

A

B

C

D

Answers

Answer:

c

Explanation:

predator 3

The answer is c because it is 65%

What is the equation of the line shown in the graph?



Drag and drop the expressions to write the equation of the line in slope-intercept form.

y=_+_

Answers

Y=2x+4 the slope is 2 because it has a rise of 2 and a run 1 which means it goes up 2 and goes to the right 1 and the y intercept is 4 which makes the equation y=2x+4
y=2x+4. i’m pretty sure

At the fabric store, ribbon is sold by the foot. If Brooklin wants to make 84 bows, how many feet of ribbon must she buy?
I NEED TO FINISH THIS IN A FEW SECONDS, HELPP

Answers

Answer:

need more info

how many feet is the bow

How much ribbon does 1 bow take up?

So I was doing a hooda math escape game, and forgot how to do these. Can you help me?

Answers

Pi * r ^ 2 that’s house help you out with what you need hunn
Bruh I can’t see anything it’s so blurry :/

Sam spins a spinner with 4 sections labeled 1/9, 1/6, and 1/3. What fraction is missing?

Answers

Answer:I’m guessing 1/12

Step-by-step explanation: because it looks like it’s skip counting by 3

Mr. Hernandez opened a flower shop. He took a random survey by asking every 5th customer to find out their favorite flower. Who is the sample?

all the customers
every 5th customer
all the flowers
all the people in the town

Answers

every 5th costumer i think

Answer:

sample: every 5th customer

Hope this helps!!!

Needed asap please,



Brittney can spend no more than $15 for new fish in her aquarium.
a. Let f be the number of fish she can buy. what inequality represents the problem?

b. How many fish can brittney buy?

Answers

Answer:

A - 15 ≥ f

Step-by-step explanation:

I don't know about B, because we don't know how much 1 fish costs.

Answer:

a) 3.00f ≥ 15

b) Brittney can buy 5 fish

A & B ) 3.00f ≥ 15÷3.00= 5

f ≥ 5 fish

Please help me I will give out extra points and the brain thing. image below

What is the equation of this line?


y=3x−2


y=1/2x−3


y=2x−3


y=1/3x−2

Answers

Y=3x-2 that’s the answer
Answer: y=3x-2

So to find the y-intercept, you look to see where the point is located when it crosses the y-axis. In this case, it crosses at (0, -2).

To find the slope, you do rise/run. Pick one point to start with. Count upwards, then over. You could also use slope formula if you know two points on the graph: slope= (y2-y1) / (x2-x1)

Petri did the following problem but got the wrong answer. She needs to correct her mistake and turn the problem back in.

(5 - 3) 2 ÷ 3 • 7 + 1

25 - 9 ÷ 3 • 7 + 1

25 - 3 • 7 + 1

25 - 21 + 1

4 + 1

5

What correction does Petri need to make?

A. She needs to multiply 3 times 7 before she divides.
B. She needs to change 25 to 10.
C. She needs to add before she multiplies.
D. She needs to subtract 5 - 3 first.

Answers

Answer:

Im not 100% on this but i think its D

Step-by-step explanation:

Answer:

The answer is d.

Step-by-step explanation:

Find the slope of the line

Answers

I think the slope of the line is 1/2, I couldn’t really tell from the picture.

Sammy buys his clothes at SuperDuper Discount Store. On Saturday, he bought shoes regularly priced at $40 for 25% off, and a jacket regularly priced at $100 for 30% off. What is the total amount that he will have to pay? (Omit sales tax.)

Answers

you would have 10% chance

Step-by-step explanation:

I know, that's probably a lot to take in! :D

40 × 25% = 10

40 - 10 = 30

The final price of the shoes is $30.

100 × 30% = 30

100 - 30 = 70

The final price of the jacket is $70.

30 + 70 = 100

A N S W E R:

The total price of the items Sammy bought (no including sales tax) is $100.

You are canning 40 cups of applesauce. You have 20 glass jars, each of which will hold 134 cups of applesauce. Choose the correct explanation(s) that explain why you do not have enough jars.

Answers

Answer:

You DO have enough jars! I do not understand!

Step-by-step explanation:

You are only canning 40 cups. This will be filled in less than one jar!

You do have enough cups

30 minutes to jog 3 miles; 50 minutes to jog 5 miles
Determine if each pair of ratios or rates are equivalent. Explain your reasoning

Answers

yes they are equivalent because 30 divided by 3 is 10 and 50 divided by 5 is also 10 therefor the the ratio/rates are the same

Answer:each pair of ratios are equivalent

Step-by-step explanation: 30 minutes divided by 3 miles is 10 minutes per mile so 10 minutes per mile and 50 minutes dived by 5 miles is also 10 minutes per mile so they are both traveling at the same rate

Alright I need some advice (THIS IS ONLY FOR MY FANS!!) should I try doing jokes on yt or somthing? And if you guys can I need some more points so I can get some more jokes in.

Answers

Answer:

do jokes

Step-by-step explanation:

PLEASE HELP ASP

What is the quotient?

2 1/5 divided by - 1/10

-22

-11/50

11/50

22

Answers

Answer:

2 1/5 divided by -1/10 = -22

Step-by-step explanation:

Answer:

-22

Step-by-step explanation:

got it right on test

Fudge costs $2.50 per pound. Emilio has a coupon for $5 off his entire order of fudge. Write an equation to find y, the total cost of Emilio’s order if he buys x pounds of fudge.

Answers

answers? you kinda need to put the OH-

Answer:

Y= $5

X=2 fudge brownies

Why?

Because if he buys 2 fudge brownies it will be $5 dollars and he has $5 dollars

PLLZZ HELP ME OUT WITH THIS!!!!


1. A driver’s elevation is -30 feet relative to sea level. She dives down 12 feet. What is the elevation after the dive?Show your work. (20 points)








2. Explain(In your own word) how to model -5+5+(-2) on the number line. (20 points)






3. How do you subtract an integer from another integer without using a number line ? Give an example. (20 points)





4.Solve following problems(Show your work for subtraction):(40 points)

(-1)+(-5)= b) (-1)+(9)= c)1-(-2)=







d) 19-(-19)= e) -87-(-87) f) 0-(-5)=

Answers

Answer:

for 1. -30 - 12 = -42

Step-by-step explanation:

She is at -30 feet then dives down 12 more

30+12=42

Can someone help me with these questions. (Answer 1 or answer them all I don't care.)

Answers

The answer to the first one is 6.5

Answer:

1 is 6.5 2 is b 3 is A

Step-by-step explanation:

If 9 fully loaded trucks carry a total of 140,400 pounds, how many pounds can 3 trucks carry?

Answers

Answer: 7000,200 pounds

Step-by-step explanation:

Answer:

46,666.7 pounds for three trucks.

Step-by-step explanation:

Set up a proportion. Find out what 1 truck will carry.

x/1 = 140,000 pounds/9   I take that the period should be a comma.

x = 15555.6 pounds

Now Three trucks out to carry 3 times as much.

3*15555.6  = 46666.7 pounds

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