Mathematics Middle School

What is a simplified form of the expression 4(2a – 1) – 5a?
a+4
3a-4
-9a+4
13a-4

Answers

Answer 1

Answer:

3a-4.

Step-by-step explanation:

4(2a-1) --> 8a-4

8a-4-5a

8a-5a=3a

3a-4

Answer 2
Answer: a≓6.969819675
Explanation: Rearrange:

Rearrange the equation by subtracting what is to the right of the equal sign from both sides of the equation :

a+3/a+7-2*a-4/a^2+3*a-28-(2-a/4-a)=0

Step by step solution :

STEP
1
:

a
Simplify —
4
Equation at the end of step
1
:

3 4 a
((((((a+—)+7)-2a)-————)+3a)-28)-((2-—)-a) = 0
a (a2) 4
STEP
2
:
Rewriting the whole as an Equivalent Fraction

2.1 Subtracting a fraction from a whole

Rewrite the whole as a fraction using 4 as the denominator :

2 2 • 4
2 = — = —————
1 4
Equivalent fraction : The fraction thus generated looks different but has the same value as the whole

Common denominator : The equivalent fraction and the other fraction involved in the calculation share the same denominator

Adding fractions that have a common denominator :

2.2 Adding up the two equivalent fractions
Add the two equivalent fractions which now have a common denominator

Combine the numerators together, put the sum or difference over the common denominator then reduce to lowest terms if possible:

2 • 4 - (a) 8 - a
——————————— = —————
4 4
Equation at the end of step
2
:

3 4 (8-a)
((((((a+—)+7)-2a)-————)+3a)-28)-(—————-a) = 0
a (a2) 4
STEP
3
:
Rewriting the whole as an Equivalent Fraction

3.1 Subtracting a whole from a fraction

Rewrite the whole as a fraction using 4 as the denominator :

a a • 4
a = — = —————
1 4
Adding fractions that have a common denominator :

3.2 Adding up the two equivalent fractions

(8-a) - (a • 4) 8 - 5a
——————————————— = ——————
4 4
Equation at the end of step
3
:

3 4 (8-5a)
((((((a+—)+7)-2a)-————)+3a)-28)-—————— = 0
a (a2) 4
STEP
4
:

4
Simplify ——
a2
Equation at the end of step
4
:

3 4 (8-5a)
((((((a+—)+7)-2a)-——)+3a)-28)-—————— = 0
a a2 4
STEP
5
:

3
Simplify —
a
Equation at the end of step
5
:

3 4 (8-5a)
((((((a+—)+7)-2a)-——)+3a)-28)-—————— = 0
a a2 4
STEP
6
:
Rewriting the whole as an Equivalent Fraction

6.1 Adding a fraction to a whole

Rewrite the whole as a fraction using a as the denominator :

a a • a
a = — = —————
1 a
Adding fractions that have a common denominator :

6.2 Adding up the two equivalent fractions

a • a + 3 a2 + 3
————————— = ——————
a a
Equation at the end of step
6
:

(a2+3) 4 (8-5a)
(((((——————+7)-2a)-——)+3a)-28)-—————— = 0
a a2 4
STEP
7
:
Rewriting the whole as an Equivalent Fraction

7.1 Adding a whole to a fraction

Rewrite the whole as a fraction using a as the denominator :

7 7 • a
7 = — = —————
1 a
Polynomial Roots Calculator :

7.2 Find roots (zeroes) of : F(a) = a2 + 3
Polynomial Roots Calculator is a set of methods aimed at finding values of a for which F(a)=0

Rational Roots Test is one of the above mentioned tools. It would only find Rational Roots that is numbers a which can be expressed as the quotient of two integers

The Rational Root Theorem states that if a polynomial zeroes for a rational number P/Q then P is a factor of the Trailing Constant and Q is a factor of the Leading Coefficient

In this case, the Leading Coefficient is 1 and the Trailing Constant is 3.

The factor(s) are:

of the Leading Coefficient : 1
of the Trailing Constant : 1 ,3

Related Questions

Can someone please help me with these

Answers

i need help with that also
Ok so for the first one x= 1 and y=4

Solve for E.
9e+4=-5e+14+13e
E=________

Answers

Answer: e equals 10

Step-by-step explanation:

E=10
Explanation if you add the 5e to the left side you get 14e and the subtract the 13e and get just e. then you subtract the 4 from 14 and you get e=10

Pls help asap will give 13 points

Answers

Answer:

1) yes

2) no, d=14

Step-by-step explanation:

what is a median, mode, and mean in seventh grade math

Answers

The median is the middle number found by ordering all data points
Ex: 1, 3, 3, 6, 7, 8, 9 the median would be 6

The mode is the number that appears most often in a set of numbers
Ex: 3, 5, 7, 13, 3, 7, 9, 3 the mode is 3

The mean is the average of the numbers (add up all the numbers then divide by how man numbers there are)
Ex: 7 + 9 + 5 + 3 = 24 now divide that by 4 and the mode is 6

in the simulation, what do you notice about the particles of the chemistry book and the physics book? What form of energy is represented by the depiction of the particles?

Answers

Answer:

(particle theory) says that all matter consists of many, very small particles which are constantly moving or in a continual state of motion. The degree to which the particles move is determined by the amount of energy they have and their relationship to other particles.

Step-by-step explanation:

Answer:

The particles are vibrating. They have thermal energy.

Step-by-step explanation:

pluto

The equation y = 3x relates the number of points resulting from three-point baskets.
What is the constant of proportionality in the equation?
A. 1
B. 3
C. x
D. y

Answers

b is the correct answer jt so me later snd is
b is the right answer

Cora is buying a $109 dress for the school dance. She has two coupons, one for $10 off and one for 15% off. If she is not allowed to use both, What is the price with the $10 off coupon?

Answers

Answer:1090

Step-by-step explanation:109 divide by 10%=1090 hope this helps you

This would be $99 $109 - $10 off coupon would make it $99

the graph shows the number of flowers that can be pollinated as the number of bees increase what is the unit rate A) 1/6 B) 6 C) 10 D) 30 Answer and i will giveaway robux and a gift card :D the picture i pasted shows the graph

Answers

Answer:6

Step-by-step explanation:

The answer is choice B, six

Which rate describes a unit price?
A. $1.00 for 2 lemons
B. $3.00 for every pound
C. $4.00 for 3 slices of pizza
D. $6.00 for every 6 bottles

Answers

Answer:

B

Step-by-step explanation:

because a unit price is a price in which only one of something is sold for

Answer and Explanation please (will mark as brainliest)

Answers

Answer:C.28%

Step-by-step explanation:

Write the Distributive Property of the following expression using the GCF:
15 + 20 =
A. 1(15 +20)
В. 5 (3+4)

Answers

Answer:

B

Step-by-step explanation:

GCF = greatest common factor

5 is bigger than 1

and 5 can divide both of them so it is the GCF when you expand the brackets you will get 15+20

I hope this makes sense I'm not too good at explaining

NO ONE IS HELPING ME PLEASE IM FINNA CRY I SWEAR I BEGGING YOU!!!! THIS IT DUE TODAY and PLZ explain!!!!!


1 question is first image


2 question is second image


3 question is third image


4 question is fourth image


5 question is fifth image

Answers

Answer:

1)     -1

2)    44

3)   ?

4)    -5

5)    10.4375

Step-by-step explanation:

Math 7 Unit 2 Lesson 11 Complete the table to show the amounts of yellow and red paint needed for different-sized batches of the same shade of orange paint. Yellow Paint (quarts) Red Paint (quarts) 5 6

Answers

here:)))))))))))))))

There are 120 students in seventh grade that ordered lunch on Monday.
• six over ten of the students ordered chicken nuggets
• one over four of the students ordered salad
• The remaining students all ordered pizza

How many students ordered pizza on Monday?

28
21
18
60

Answers

Answer:

u say 6 over 10 into 120 that gives you 12x6 72 and then 1 over 4 into 120 and gives 30 +72=102 then 120-102=18 the answer is 18 that's it

28 students ordered pizza

Insert images of the plant and the fish in the space provided to arrange the 24 fish and the 18 plants into sets so that each set has the same number of fish and the same number of plants and none are left over. (In each set, the number of plants does not have to be equal to the number of fish.) Write an expression for the total number of fish and plants in each set.

F=fish
P=plant

Answers

Answer:

4:3

Step-by-step explanation:

For every 24 fish there are 18 plants

Simplified: 4:3

Answer:

This is how I did it:

(I know you gave the brainliest to someone else but I do not care lol)

Each group will have 4 fish and 3 plants. There will be 6 groups.

Ye...

(also wow this answer is late)

HURRY!!!!!! PLS!!!!!!!!!! DUE TODAY!!!!!!!

Answers

Answer:

i think b

Step-by-step explanation:

C

-4 is the y and down three over 4

this is the question

Answers

The answer is the 1st one which is 1.26 x 10 to the 5th power

Anybody?- Help meh?
:>

Answers

Answer:

the second picture is velocity =distance divided by time just do that and theirs Ur answer

Step-by-step explanation:

Answer & Step-by-step explanation:

These are easy, just substitute the value for the variable as they say it is and solve :)

I will get you started with the first one, and then you can do the last three on your own. We will substitute the value for l and w into the correct spots in the formula.

P = 2(2.5) + 2(1.25)

P = 5 + 3.5

P = 8.5

I'm always happy to help :)

NO ONE IS HELPING ME PLEASE IM FINNA CRY I SWEAR I BEGGING YOU!!!! THIS IT DUE TODAY and PLZ explain!!!!!

Answers

Answer:

=  13 /3  (Decimal: 4.333333)

Step-by-step explanation:

The formula for finding the area of a square with side length s is Area = s2.
What is the formula for the area of a square with side length 1/2s?
Area = 1/2s²
Area = 2s²
Area = 4s²
Area = 1/4s²

Answers

Answer:

Area=1/2s^2

Step-by-step explanation:

You replace the s with 1/2s in the formula and get the answer

Answer:

1/4s^2

Step-by-step explanation:

That's what the answer is on time4learning

8/9 divided by 1/2= 8/9 times what equels 8/9 divided by 1/2
does that make sense? lol
WILL BE GIVING BRANLIEST
29 POINTS

Answers

Answer:

i tried to do math on that questiong it broke my pencil and my computer u got me messed up

tep-by-step explanation:

I
I think it might be 128/81
Divided 8/9 by 1/2=16/9
Since it’s it’s 8/9 greater than 16/9 I multiply 16/9 by 8/9= 128/81

Tell me if it’s wrong or right. I would like to know

help please !! thank u

Answers

I’m pretty sure it’s 130 degrees I hope it is.
130 degrees. I’m glad to help.

please answer this asap :)

Answers

I would have thought A as you take one from the other

what is the value of the expression?
(-2.5)(1.15)(-0.5)

Answers

Answer:

the answer of this problem is 1.15

Answer:

1.4375

Step-by-step explanation:

-2.5 * 1.15 = -2.875

-2.875 * -0.5 = 1.4375

Stacy is building a slide for her kids. If the ladder is 9 feet tall and she wants the bottom of the slide to be 12 feet from the ladder, how long does the slide need to be?

Answers

13? I’m pretty sure good luck

Answer:

3 feet more

Step-by-step explanation:

Please help asap plssssssss f + 4 = 100

f =

Answers

Answer:

96

Step-by-step explanation:

Answer:

f=96

Step-by-step explanation:

f+4=100

Subtract 4 from both sides because it is the opposite of addition

4-4=0

100-4=96

f=96

The temperature is -6 °at 6 A.M. During the next four hours, the temperature increases 25°F. What is the temperature at 10 a.m.?

Answers

Answer:

19

Step-by-step explanation:

-6 - 25 = 19

Answer:

19 degrees

Step-by-step explanation:

-6 + 25 = 19

What is the area of a rectangle with length 1/12 foot and width 3/4 foot? Need ASAP

Answers

Answer:

3/8

Step-by-step explanation:

1/2 x 3/4 = 3/8

Answer:

10

Step-by-step explanation:

l_l_l_l_l_l_l_l_l_l_l_l

you have a foot witch = 12 inches

you use 1

then you have to take away 3/4 witch =9 then you add 1 to it = 10

I hope this helps! :)

Can you please help me I will give you the brain thing and extra points. image below
Which statements are correct interpretations of this graph?

Select each correct answer.


3 boxes are filled every 4 min.

0.75 boxes are filled per minute.

4 boxes are filled every 3 min.

1.3 boxes are filled per minute.

Answers

3 Boxes are filled every 4 minutes please mark branliest if correct. Have a good day :)

Answer:0.75 and 3

Step-by-step explanation:

4. Jorge found the slope of the line graphed below. 10 8 6 OLLALL LIGU10 4 6 18 100 ال) The slope is​

Answers

Answer:

that doesnt look like a real problem tho

Step-by-step explanation:

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