Mathematics Middle School

Please help on this one question
Which of the following is equivalent to (2a + a)(3b + 1)?

Tip: Simplify the expression on the left first, and then use the distributive property.

Please Help On This One Question Which Of The Following Is Equivalent To (2a + A)(3b + 1)?Tip: Simplify

Answers

Answer 1

Answer:

9ab+3a

Step-by-step explanation:

2a*3b=6ab

2a*1=2a

a*3b=3ab

a*1=a

adding everything together=6ab+2a+3ab+a=9ab+3a

Answer 2
Answer:

9ab+3a

Step-by-step explanation:

First Simplify:

(2a+a)*(3b+1)

2a*3b=6aba*3b=3ab1*2a=2a1*a=a

Combine like terms:

6ab+3ab=9ab

2a+a=3a

Add it all up:

9ab+3a

Done!!!

Related Questions

Which of the above graphs represents the stated inequality?
X ≤ ⅞

Answers

Answer:

A

Step-by-step explanation:

Answer:

d

Step-by-step explanation:

the circle is filled in because it is less than or equal too, and it points left

please please help me

Answers

This question is really hard

Answer:

1. [tex]\frac{1}{4}[/tex]

2.[tex]\frac{5}{6}[/tex]

3.[tex]\frac{3}{10}[/tex]

4. 1[tex]\frac{1}{8}[/tex]

5. 2[tex]\frac{6}{7}[/tex]

6. 3[tex]\frac{8}{9}[/tex]

Step by Step Explanation

I used the same method with all 6 questions, I had to tweak it slightly for the last 3 as they were mixed fractions.

For the first 3 questions, I used the number you had to make and multiplied it by the denominator. Let's use the first questions as an example.

We need to make 7 by adding something to 27/4. I multiplied 7 by 4 in order to get 28.

This means your goal is to get to 28/4.

The difference between 28/4 and 27/4 is 1/4. Meaning you only have to add 1/4 in order to make 7.

For the last 3 questions I first sorted the fractions out. Let's use the first question again on the right side as an example.

I made 5[tex]\frac{7}{8}[/tex] a top heavy fraction by first multiplying 5 by 8, which makes 40. I then added 40 to 7 making 47. Now the fraction is 47/8.

Now that we have our top-heavy fraction we do the same as last time. We need to make 7. So we multiply 7 by 8 and that makes 56. The difference between 56 and 47 is 9. So we need 9/8 in order to get to 56/8. We need a mixed fraction so 9/8 becomes 1[tex]\frac{1}{8}[/tex].

I hope this helps, if this was confusing don't be afraid to ask questions.

A rectangle has a length of 2x+ 7 and a width of 3x+ 8y. Write and simplify an expression for the perimeter of that rectangle.

Answers

2(2x+7)+ 2(3x+ 8y) should work

those are the options for both

Answers

The height of the ball is a(n) increasing function of time on interval a, and decreasing on interval b

Answer:

The ball is increasing on A and decreasing on B

WILL GIVE BRAINS!!! HELP

Answers

Answer:

$30.50 per hour

Step-by-step explanation:

427/14 = 30.50

i want his job!!

btw can i get brainliest plz

Answer:

$30.50

Step-by-step explanation:

All you have to do is take any one of those and divide the number of dollars earned by the number of hours:

$427 divided by 14 = $30.50

Multiply and Divide Decimals.
Gweyn buys material to make a bumble bee costume. she buys 1.75 yards of yellow material. she buys 1.2 time as many yards of black material. how many yards of the black material does Gweyn buy?
Answer the problem Show your work.
State your answer give details.
Do all this You'll get Brain!!! <3

Answers

Answer:

ithinxk its 2.1

Step-by-step explanation:

Answer:

2.1 Yards of Black Material.

Step-by-step explanation:

The problem is a simple multipication problem.

Take 1.75, and multiply that by 1.2. The answer comes out to 2.09. Since the 9 in the .09 part is above 5, you would round that up, which gets you the answer of 2.1 Yards.

please include an explanation !!

Answers

Answer:

4 yd

Step-by-step explanation:

20 yd / 4yd is 5yd and 8yd / 4 yd is 2yd they both have the number for in common it is the greatest common factor so 4yd is the answer.

Answer:

10.5

Step-by-step explanation:

Volume of a triangular Prism= [tex]\frac{1}{2}[/tex]blh

840=[tex]\frac{1}{2}[/tex](x*20*8)

840=[tex]\frac{1}{2}[/tex](x*160)

840=[tex]\frac{1}{2}[/tex](160x)

840=80x

x=10.5

Jayden purchased a pair of Jordan sneakers for $150 that is 23% off of the original price, what is the original price for the sneakers?

A. $173
B. $ 184.50
C. $194.81
D. $115. 50

Answers

Answer:

B

Step-by-step explanation:

Answer:194

Step-by-step explanation:

HELP PLEASE!

7.2 < x + 4.2.​

Answers

Answer:X=4.2

Step-by-step explanation:

Answer:

x>3

Step-by-step explanation:

Factor 28+56t+28w to identify the equivelent expressions

Pick 2 answers :

A. 2 (56+112t+56w)
B. 28 (1+2t+w)
C. 4 (7+13t+7w)
D. 7 (4+8t+4w)

Please help! I tried to put it in an easy format.

Answers

B and D are the two equivalent expressions
It’s B, you factor out the greatest common factor with is 28 and you get 28(1+2t+w)

The probability of rolling a number less than 3 on a number cube is 2/6. What is the probability of its complement? Simplify your answer.

Answers

Answer:

4/6

as we know probability of rolling a number less than 3 on a number cube is 2/6 and then its complement (opposite, greater than 3) that is 4/6

Aw we know the probability of rolling A number less than three on a number cube is 2/6 and then it’s complement (opposite, greater than three) that is 4/6

Simplify the expression: 2(4x+5)-12

Answers

8x -2

hope this helped
8x-2 is the correct answer

I borrowed $50 from mom and $50 dollars from dad to buy a bag costing $97.
After the purchase, i had $3 dollars left. I returned $1 to dad and $1 to mom, and reserved $1 for myself. I now owe 49+49 = $98 plus the $1 I reserved for myself., which is $99. Where is the missing $1?

Answers

(X) 32 Ps 10
Find the greatest cor

Answer:

So you are trying to fool me sooooo i don't know i think the one dollar is used already

Step-by-step explanation:

i made anotherrr ehehheh hope you two make it to this one

Answers

Answer:

cool thx i hope you have a great day

The cost to rent a boat can be modeled by the equation C = 18h + 35 where C is the total cost in dollars and h is the number of hours in which the boat is rented.

What is the dependent variable?

A. h

B. C

C. 18

D. 35

Answers

Answer:

the answer is B, C is the total of cost (the dependent variable) because it depends on the independent variable, which is h. the dependent variable always is dependent on the independent value, like, you need the total of hours that you are renting the boat to know how much you need to pay, it can't be the other way around.

It’s B I looked it up

Help me please I need help

Answers

Answer:

1-3.6

2-4.1

3-3.2

4-5.8

5-12.7

Step-by-step explanation:

Which expression is represented by the set of algebra tiles below?

1 box contains x and 6 boxes contain minus signs.
x + 6
x minus 6
6 minus x
6 x minus 1

Answers

Answer:

the correct answer is b

Step-by-step explanation: because in the image

                                               X --- ---

so that is X - 6

                                                 


How do we figure out the value of a variable?

A )Add up all the numbers in the equation.
B )Multiply the variable by itself.
C )Isolate the variable on one side of the equals sign.
D ) A variable has no set value.

Answers

Answer:

c i think

Step-by-step explanation:

Who knows how to do this ?

Answers

Answer:

hello again

Step-by-step explanation:

i think

[tex] \frac{10}{19} [/tex]

have a nice day

in orlando , florida , the high temperature was 85 degrees on saturday 79 degrees on sunday. What is the percent of change in the high temperature from saturday to sunday?

Answers

The percent is estimated 7%.
Percent estimated 7%

PLS PLS HELP ME ILL GIVE BRAINLIEST

Answers

Answer:

It's no. C

Step-by-step explanation:

The answer is B! All of the points line up with the answer choice of B. Hope this helps! Brainliest please

a quart of stain covers 100 square feet. how many quarts should you buy the stain the wheelchair ramp?

Answers

Answer:

aw hes in a wheelchair

Step-by-step explanation:

One-third times the difference of a number and 5 is Negative two-thirds. Which equation best shows this? One possible first step in solving the equation in the above problem is to . The value of the number is .

Answers

Answer:

1/3(n - 5) = -2/3

distribute 1/3

3

Step-by-step explanation:

I got it correct on edgen

1 = A   The first answer on the drop down menu

2 = C   The third answer on the drop down menu

3 = B   The second answer on the drop down menu

evaluate the expression for x = 8
x = 5

Answers

Answer:

4x2=8

5x1=5

Step-by-step explanation:

Because four 2 times is 8 because 4 plus 4 is 8.

and everything multiplied by 1 is the other number.

I'm not sure if that's how you meant it.

It is 2*4=8 and 3+2=5

Ms. Thompson reported her students' scores on their most recent test. How many students scored at least 80

Answers

Answer:

5

Step-by-step explanation:

5 scored in the 80's and 0 scored in the 90's

anything less than 80 would not be counted

Answer: I think it's 85 , I hope this helped if not I totally understand .

Step-by-step explanation:

simplify
1) 8-(2+7)
2) 9-(2-7)
3) 8-(-2+7)
4) 8-(-2-7)

Answers

1). 8-9=-1
2). 9–9=18
3). 8–2+7=8+9
4). 8–2-7=8+5

Melissa earns a 2% commission on the first $750 of sales she makes each week. She earns a 3% commission on the amount of her sales that are greater than $750 each week. Melissa earned $37.50 in commissions last week. How much were her sales last week?

Answers

Answer:


1500
I hope this helps lol

updated!
Match the vocabulary word with its definition.

1 .
factor tree
an approximate value close to the actual value
2 .
estimation
the smallest multiple that any given numbers have in common
3 .
least common denominator
the amount of time that passes between the start of an event to the end of an event
4 .
equivalent fractions
the line between the numerator and the denominator of a fraction
5 .
fraction bar
a number that shows part of a whole
6 .
factor
the least common multiple of two or more denominators
7 .
elapsed time
a fraction in which the numerator is larger than or equal to the denominator
8 .
denominator
the largest factor that any given numbers have in common
9 .
least common multiple
a number that divides evenly into another number
10 .
improper fraction
fractions with the same numerical value; fractions that are equal to each other
11 .
fraction
an organized way of finding the prime factorization of a number
12 .
greatest common factor
the number under the fraction line; tells how many equal parts the whole was broken into

Answers

Answer:

Step-by-step explanation:

Composite number

a whole number that has factors other than just 1 and itself

Divisible

able to be divided by a given whole number without a remainder

Factor

a whole number that divides into another number without a remainder

Factor tree

a tree-like structure that uses branches to show the factors of a number

Multiple

the product of a given number and another whole number

Prime factorization

an expression that shows a number expressed as a product of prime numbers

prime number

a whole number that has only two factors, 1 and itself

product

the answer to a multiplication problem

GCF

greatest common factor of a set of numbers

1. factor tree: organized way of finding
2. estimation: approx value
3. LCD: least common multiple of two or more denominators
4. equivalent fractions: same numerical value
5. fraction bar: line between numerator and the denominator
6. factor: number that divides evenly
7. elapsed time: amount of time
8. denominator: number under the fraction line
9. LCM: smallest multiple that any given
10. improper fraction: numerator is larger than denominator
11. fraction: number that shows part of a whole
12. GCF: largest factor

(05.01) A poster is shown below: 3 feet 12 feet. What are the dimensions if the poster is enlarged by a factor of 5/2?

7.5 ft by 30 ft
15 ft by 60 ft
1.5 ft by 6 ft
15 ft by 6 ft​

Answers

7.5 by 30

3 * 5/2 = 7.5

12 * 5/2 = 30

Answer:

7.5 by 30

3 * 5/2 = 7.5

12 * 5/2 = 30

Step-by-step explanation:

Find the difference.


Jeremy is practicing some tricks on his skateboard. One trick takes him forwards 4 feet, then he flips around and moves backwards 7.2 feet, then he moves forward again for 3.2 feet.


Part 1 out of 2
What expression could be used to find how far Jeremy is from his starting position when he finishes the trick?


The expression that represents the situation is

Answers

Answer:

Jeremy is in the same position he started in.

Step-by-step explanation:

4 ft - 7.2ft = -3.2ft + 3.2ft

Hope this helps! :)

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