Mathematics Middle School

Simplify
1/2(2a+b) - (4a + b)

I appreciate whoever can help me! :D

Answers

Answer 1

Answer:

-3a-1/2b

or -3a-0.5b

Step-by-step explanation:

1/2(2a+b)-(4a+b)

a+1/2b-4a-b (Evaluate Exponents)

-3a-1/2b (Combine like Terms)

Related Questions

I have an hour to finish this

Answers

Answer:

5. y=6x       6. y=5x

Step-by-step explanation:

Answer:

y=6x y=5x

Step-by-step explanation:

Lorena calculated the slope of the linear function that is represented by the table of values as shown.

x
y
–10
15
–8
27
–6
39
–4
51
–2
63

m = StartFraction y 2 minus y 1 Over x 2 minus x 1 EndFraction = StartFraction 63 minus 51 Over negative 2 minus (negative 4) EndFraction = StartFraction 12 Over negative 6 EndFraction = negative 2.

Answers

Answer:

the answer is 4

Step-by-step explanation:

Answer:

4

Step-by-step explanation:

Please solve 7y - 8 = 6y + 1 AND FAST PLEASE

Answers

In order to solve this problem, we must first p it all variables on one side and all numbers on the other.

7y-8=6y+1

We subtract 6y from both sides to cancel it out on the right and have it on the left.

Y-8=1

Now, we put the numbers on the opposing side.

Y=9

We receive the answer Y=9

To check it, we can plug or input 9 into both equations.

7(9)-8=6(9)+1
63-8=54+1
55=55

Now that we know they are equal, we can conclude that the answer is 9.

Answer:

y=9

Step-by-step explanation:

7y-6y= y

y-8=1

y=9

An integer between -5 and -6

Answers

If I’m not mistaken it’s -5.5
It’s -5.5 i thinkkkkkkk

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 ME FAST!!! BRAINEST IF HELPED THE FASTEST!!!!! 65.5 divided by 2.5

Answers

Answer:

26.2

Step-by-step explanation:

i think

Answer:26.2

Step-by-step explanation:

Please help meh if it says high school it's actually middle

Answers

Answer:

d.b.e

Step-by-step explanation:

Answers D.B.E
Hope this is right

Please help me with 1 though 4

Answers

1: 28 miles
2: 960 ounces
3: 14 yards
4: 26,000

What is 7.8×105 hours in days?


3.250×104 days

1.872×104 ​ days

1.872×108 ​​ days

3.250×106 ​​ days

Answers

B.) 3.250*106 days

I figured it out!! Yay!

You take 7.8 and divide it by 24 which will get you 0.325

In order to get it match one of the options, multiply it by 10 (which will add 1 to 105!) Leaving you 3.25*106

Answer:

3.250×10^4 days

Step-by-step explanation:

I need help please 1) George left a 19% tip on a $90 dinner bill. How much was the tip?

Answers

Well, $72.9 was the tip.

Two numbers have square roots about 40 apart. What could they be?

Answers

They could be 7 (49) and 9 (81) or 10 (100) and 12 (144)

The two numbers such that their square roots about 40 apart will be 2401 and 81.

What is a number system?

The number system is a way to represent or express numbers.

A decimal number is a very common number that we use frequently.

Any of the multiple sets of symbols and the guidelines for utilizing them to represent numbers are included in the Number System.

Let's consider the number 8² = 64

Now, 64 - x = 40

x = 64 -40 = 24 and it is not a square of any number.

Take, 7² = 49

49 - x = 40

x = 9 it is a square of 3.

Thus, 7² - 3² = 40

So, 49² = 2401 and 9² = 81

Hence "The two numbers such that their square roots about 40 apart will be 2401 and 81".

For more about the number system,

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What is the result of 5 divided by one-fifth?

5 fraction bars. Each bar is labeled 1 with 5 boxes labeled one-fifth underneath.
StartFraction 1 Over 25 EndFraction
One-fifth
1
25

Answers

Answer:

25

Step-by-step explanation:

Factor the numerator and denominator and cancel the common factors.

Answer:

25 :)

Step-by-step explanation:

how is 6/4 simplified to 1 1/2. I need a full explantion!! PLEASE HELP!!!!

Answers

Answer:

6 goes into 4 one time while still having 2 left over leaving you with 1 and 1/2

Step-by-step explanation:

that's the simplest its gonna get

I honestly don’t know

Make a table of ordered pairs for the equation.
y = 1/2 x -3 Example: ( 0, 0)

Answers

I hope this helps :/

Answer:

1 : -2.52 , -23 : -1.54 , -15 : -0.56 , 0

Step-by-step explanation:

by starting to put the value of x as 1 and continuing up to 6 we calculate the value of y and therefore get the given table above

I need help with the question in the photo!! Thanks!

Answers

The answer is B

Give me a thanks
37.45 kilometers into meters... hm
The answer is D. u move the the decimal 3 to the left . Comment if u want a better explaination, I’m sorry I couldn’t explain it more; but I hope this helps!!!

Pat bounces a basketball 20 times in 30 seconds. At that rate, approximately how many times will Pat bounce the ball in 36 seconds?
A. 42 times
B. 28 times
C. 24 times
D. 32 times
Which one is right? Please explain your answer.
HELP ME PLS

Answers

The answer is B about 28 times

Step-by-step explanation:

If he bounces the ball 20 times in 30 seconds then he bounces it once every 1.5 seconds if you multiply 1.5×6 you get 9 so you add 9 to 20 to get 29 and you choose the closest answer because is says approximately so you chose B.28

it’s C because 30 divided by 20 is 1.5, and 36 times 1.5 is 24

24 more than the product of 6 and 12

Answers

Answer:

96

Step-by-step explanation:

Product means multiplication. Therefore, 6 x 12 = 72

Then it is asking for 24 more. This means 72 + 24 = 96

Answer: 96

Step-by-step explanation:

you do 6x12=72 then add the product to 24. 72+24=96

You want to build this bookshelf. Given that a∥ b and m∠3=x and m∠2=x+30. Find the measure of ∠4, ∠5, and ∠6

m<4= ___ Degrees
m<5= ___ Degrees
m<6= ___ Degrees

Answers

Answer:

[tex]\huge\boxed{m \angle 4 = 105 \textdegree}[/tex]

[tex]\huge\boxed{m \angle 5 = 75 \textdegree}[/tex]

[tex]\huge\boxed{m \angle 6 = 105 \textdegree}[/tex]

Step-by-step explanation:

We can use basic angle relationships to find the measures of m∠4, m∠5, and m∠6.

We know that angles m∠3 and m∠2 are supplementary. This means their angle lengths add up to 180°. Since we know the expression for both, we can add them and solve for x.

[tex](x) + (x+30)=180[/tex] [tex]2x+30=180[/tex] [tex]2x=150[/tex] [tex]x = 75[/tex]

So x = 75°, aka m∠3 is 75°. This means m∠2 is going to be [tex]75+30=105[/tex]°.

m∠4 is an opposite angle to m∠2. This means their angle lengths are the same. Therefore, m∠4 is 105°.

We also know that m∠3 and m∠5 are alternate interior angles, meaning their angle lengths are the same. Since m∠3 is 75°, m∠5 is also 75°.

We also know that m∠6 is a corresponding angle to m∠2. This means their angle lengths are the same. Since m∠2 is 105°, m∠6 is also 105°.

Hope this helped!

Sea level is the average level of the sea between high and low tide. It is used as a reference point for measuring elevation, or height and depth, on Earth. Some places lie above sea level, while others lie below sea level.

The lowest point in New Orleans is 8 feet below sea level. You can represent that numerically using
.
The highest point in Chicago is 735 feet above sea level. You can represent that numerically using
.

Answers

-8

735

unless i'm missing something

Answer:

A negative integer and a positive integer

Step-by-step explanation:

Question 25 - 3.3 Points

12 customers entered a store over the course of 2 minutes. At what rate were the
customers entering the store in minutes per customer?

Answers

6 per minute divided it by 2
the answer is 3.7

turn them into fractions

Help need good answers with explanations. If you don't get it please do not waste my points.

Answers

A) 1

B) 3

C) 5

D) 2

E) 4

Hope this helps :)
Hi! This should be the answers to your problem! ❤️
1
3
5
2
4

Elliott is counting the change from a class fundraiser. He has half as many quarters as nickels, and he has 7 fewer dimes than nickels. The total value of coins is $5.90. He wrote the equation 0.10 (7 minus x) + 0.5 (x) + 0.25 (one-half x) = 5.90. Which statements identify Elliott’s errors? Check all that apply.
He should have written the expression for the number of dimes as x – 7.
He should have written the coin values as 5, 10, and 25 and not as 0.5, 0.10, and 0.25.
He should have written the coin value for the nickel as 0.05.
He should have translated the scenario as value of all dimes = value of all nickels and value of all quarters = value of all nickels.
He should have written the expression for number of nickels as 2x.

Answers

Answer: He should have  translated the scenario as value of all dimes = value of all

Step-by-step explanation:

He should’ve translated the scenario as value of all dimes= value of all

Write the equation of the line that contains the given point and has the given slope. (–1, 4), slope = –3

Answers

Answer:is that a negative 3?

Step-by-step explanation:

-1x+4=-3? Maybe I haven’t done slope inna while

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:

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Solve for X
X=..........................

Answers

Answer:

(3x -5)°+ (2x- 15)°=180°[sum of co- Interrior angles of a triangle is 180°]

or, 3x- 5 + 2x - 15=180°

or,5x - 20 = 180°

or, 5x = 180°+20

or, x = 200÷ 5

•°•x = 40°

Answer:

X = 40

Step-by-step explanation:

3x + 2x -5 -15 = 180

5x + -20 = 180

then u add 20 on both sides

5x + 0 = 200

ya the 0 is not necessary but I was showing u add 20 on both sides lol

then u divide 5 on both sides to get the x by itself

x = 40

Hope this helps dude ^-^

In complete sentences explain why you can sometimes add square roots with different radicands. Give an example where you can add square roots with different radicands and an example where you cannot add square roots with different radicands.

Answers

Answer:

Just as with "regular" numbers, square roots can be added together. But you might not be able to simplify the addition all the way down to one number. Just as "you can't add apples and oranges", so also you cannot combine "unlike" radical terms. In order to be able to combine radical terms together,

those terms have to have the same radical part.

How do you write 5y<3 without exponents?

Answers

Answer:

When an exponent is 1, the base remains the same. a 1 = a . When an exponent is 0, the result of the exponentiation of any base will always be 1, although some debate surrounds 0 0 being 1 or undefined. For many applications, defining 0 0 as 1 is convenient.. a 0 = 1 . Shown below is an example of an argument for a 0 =1 using one of the previously mentioned exponent laws.

Step-by-step explanation:

Answer: 5y times 5y times 5y

Step-by-step explanation: I’m going to assume you meant “(5y)^3”

Oscar bought a bag of almonds. He ate 3/8 of the bag on Sunday. On Monday he ate 2/3 of the remaining almonds. What fraction of the entire bag did he eat on Monday?

Answers

Answer:                                                                                                      

2038/5000

I just took 2/3s of 5/8s and made it a fraction

Answer:The fraction he ate on Monday is 5/12.

Step-by-step explanation: 1-3/8= 8/8-3/8=5/8 left on Sunday.

2/3*5/8=2*5/3*8=10/24 simplify 5/12.


3. The points (15,21) and (25,35) form a proportional relationship.
a) Find the slope of the line through the points.
b) Which graph represents this relationship?

Answers

Answer:the letter is c because it the only one that is lined up and I got it right trust me

Step-by-step explanation:

The slope of the line passing through (15,21) and (25,35) is 7/5.

What is slope?

The slope of a line is a measure of its steepness.

Given that, the points (15,21) and (25,35) form a proportional relationship.

Slope = (y2-y1)/(x2-x1)

= (35-21)/(25-15) = 14/10 = 7/5

The equation of a line passing through these two points are;

y - y1 = [(y2−y1)/(x2−x1)](x - x1)

y - 21 = 7/4(x - 25)

y = 7x/4 - 14

Hence, the slope of the line = 7/5

For more references on slope, click;

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Hector paid $57.00 for 5 movie tickets. Each ticket cost the same amount. What was the cost of each movie ticket in dollars and cents?

Answers

Answer:

11.4

Step-by-step explanation:

57/5

Answer:

11.4 dollars

Step-by-step explanation:

hope that helps

11 dollars and 4 cents

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