Mathematics Middle School

PLEASE SIMPLIFY THESE
a) 2.56x+0.14−1.87x
b) 7.32a+2.1∙(2.7−18a)
c) 0.12x+0.34y+0.98x−3.35y
THANK YOU

Answers

Answer 1

Answer:

a. 0.69x + 0.14

b. 5.67 - 30.48a

c. 1.1x - 3.01y

Step-by-step explanation:

a) 2.56x + 0.14 − 1.87x

To simplify this algebraic expression, you start by collecting like terms;

2.56x − 1.87x  + 0.14

Then perform arithmetic operation

0.69x + 0.14

b) 7.32a + 2.1 (2.7 − 18a)

Here; first, the bracket must be opened

To open the bracket; each expression in the bracket is multiplied by 2.1. This leaves us with

7.32a + 2.1 * 2.7 − 2.1 * 18a

7.32a + 5.67 - 37.8a

Then, you collect like terms

7.32a - 37.8a + 5.67

Then perform arithmetic operation

-30.48a + 5.67

Rearrange

5.67 - 30.48a

c) 0.12x + 0.34y + 0.98x − 3.35y

Here, you start by collecting like terms

0.12x + 0.98x + 0.34y − 3.35y

Then perform arithmetic operation

1.1x - 3.01y

Related Questions

What is the degree of the polynomial
T-4t^2+t^3

Answers

Answer:

3 degrees.

Step-by-step explanation:

In OY, shown below, the radius is 34 units, AB = 60 units, and the measure of arc AC is 71 degrees.

Find each measure.​

Answers

Answer:

1. 71

2. 142

3. 30

4. 30

5. 16

6. 18

5 points
Justin and TJ are servers at a local restaurant. The table below shows the
tips they earned. Which student has a lower mean tip for the week and by
how much?
Tips
Monday
Tuesday
Wednesday
Thursday
Friday
Justin
$32
$45
$50
$33
$50
T.J.
$58
$48
$40
$42
$42

Answers

Answer:

 Justin has a lower mean tip for the week with $42.

Step-by-step explanation:

To find the mean you must add all the numbers and then divide the sum by how many numbers there are.

For Justin you must add 32 + 45 + 50 + 33 + 50 then you'll get the sum 210. There are 5 numbers so you divide 210 by 5 which gives you the quotient 42.

As for T.J. you add 58 + 48 + 40 + 42 + 42 which gives you the sum of 230. Then you divide 230 by 5 since there's 5 numbers. Now you have the quotient of 46.

46 is greater than 42 so Justin has the lower mean.

Answer:

Justin by 4

Step-by-step explanation:

you add all the numbers for T.J. and for Justin separately and divide by five. you get 42 for Justin and 46 for T.J.

-plz mark as brainliest-

If a/b=5/3 then 3a = ____.

Answers

Answer: 15
a=5, b=3
3a= 3x5= 15

Answer: 15

Step-by-step explanation:

If a/b is equal to 5/3 then a= 5 and b= 3

3a is equal to 3 times a which is equal to 3*5

3 times 5 is 15 so 3a=15

How can you make 64, multiplying just two numbers?

Answers

These are all the answers to this question!

1 x 64 = 64

2 x 32 = 64

4 x 16 = 64

8 x 8 = 64

16 x 4 = 64

32 x 2 = 64

64 x 1 = 64

Answer:

Hope this helps!

Step-by-step explanation:

1 times 64

8 times 8

64 = 1 x 64, 2 x 32, 4 x 16, or 8 x 8. Factors of 64: 1, 2, 4, 8, 16, 32, 64.

help me solve -2m-40

Answers

Answer:

-42

Step-by-step explanation:

Wouldn't you just do -2 minus 40 and get -42

Answer:

-2(m+20)

Step-by-step explanation:

We can factor out a GCF of -2

-2m-40

-2(m+20)

We can't solve for m because this is not an equation.

Hope this helps! :)

find the missing angle.. x=??

Answers

Answer: 55°

Step-by-step explanation:

The Angles, 35° and x are equal to a right angle.  Right angles are always 90°, which means that 35 + x = 90. Therefore 90°- 35° = 55°.

Answer: 90-35= 55

Step-by-step explanation:

Line segment AB has a length of 5 units. It is translated 3 units to the right on a coordinate plane to obtain line segment . What is the length of ?

Answers

Answer:

5 units long because when you have a translation the length, size and shape of the segment doesn't change it's just moved over on the coordinate plane.

3 packages of cheese for $7.17
6 packages of cheese forx dollars

Answers

Answer:

$14.34

Step-by-step explanation:

Do 7.17 divided by 3 which is 2.39.

Then multiply that with 6. That is your answer.

5/6 minus 1/4 i am too lazy to do it myself

Answers

Answer:

Step-by-step explanation:

Answer :5/6 - 1/4 = 7/12    get same denominator and subtract.

Hope this will help u..


Salma suggested they sol a Grande box with 24 cupcakes. The ratio of
chocolate to vanilla cupcake is the same ratio of chocolate to vanilla for the
small box. Salma says that she can use equivalent ratios lo find how many
cupcakes in the Grande box are chocolate. What does she mean by that? How
many chocolate cupcakes will that be?​

Answers

Answer:

12... If there is an even ratio between the two, then there is an even amount, so you divide 24 by 2 and you have 12 chocolate and 12 vanilla cupcakes in the Grande box.

Step-by-step explanation:

It izz wat it izzzz!!!

                              :)

Answer:

If the ratio of chocolate to vanilla cupcakes is the same, that would make there 12 chocolate and 12 vanilla cupcakes.  She means that she can use equivalent ratios by, lets say the grande box had 100 cupcakes, then we know 50 are chocolate. We don't know how many chocolate cupcakes that will be because we don't know how much bigger the bigger box of cupcakes is.

Step-by-step explanation:


A full jar of honey weighs 750 grams, and the same jar two-thirds
full weighs 550 grams. What is the weight of the empty jar in grams

Answers

Answer:

150 grams

Step-by-step explanation:

The weight of the full jar of honey is equivalent to x + y, where x is equal to the weight of honey and y is equal to the weight of the jar.

x+y = 750

2x/3+y = 550

You can solve for y in the first equation and get:

y = 750-x

Plug that in to the second equation and you get:

-x/3+750 = 550

Subtract 750 from both sides:

-x/3 = -200

Multiple -3 on both sides:

x = 600 grams

The weight of the jar is 750-600 or 150

Alice and Claire go apple picking. When they are done, Claire has 3 times as many apples in her basket as Alice has in hers. All of the apples are whole. What are the three different possibilities for numbers of apples that could be in the baskets?

Answers

Answer:

If Alice has 2, Claire has 6

If Alice has 4, Claire has 12

If Alice has 10, Claire has 30

Step-by-step explanation:

apples = Alice + (Alice x 3)

I nreed help aspa plzzzzzzzzz

Answers

ᗯITᕼ ᗯᕼᗩT 234567889666$OK

0.054452 5 .S.F help please and answer please

Answers

Answer:

0.054450

Step-by-step explanation:

Since we are to round up to 5 significant figures

Always remember that if there's zero after the decimal point,it means the zero will be neglected

So we will have to take the count from after zero

0.054452

So to round up to 5 SF

0.054450

Mrs Lopez drives a number of miles north. Then she drives 34 miles west. She drives 94 miles in all. Complete the number sentences to show how many miles she drives north.


? +_ = _ and _ - _ = ?

Answers

Answer:

60

Step-by-step explanation:

number of miles driven north plus 34 equal 94.

subtract 94 from 34 to get your answer.

Mrs. Lopez drives 60 miles north.

The completed number sentences are:

60 + 34 = 94 and 94 - 34 = 60.

What is number sentence?

Let's assume Mrs. Lopez drives x miles north.

The number sentence for the total distance she drives can be written as:

x + 34 = 94

This equation represents the sum of the distance she drives north (x) and the distance she drives west (34), which equals the total distance she drives (94).

To find the value of x, subtract 34 from both sides of the equation:

x = 94 - 34

Simplifying the expression, we have:

x = 60

Therefore, Mrs. Lopez drives 60 miles north.

The completed number sentences are:

60 + 34 = 94 and 94 - 34 = 60.

Read on number sentences on https://brainly.com/question/28839703

#SPJ3

Laurie wants to buy a new sweater that costs $45. The sweater is on sale for 25% off and 6.75% sales tax will be applied to the purchase. What will be the total cost of the sweater?

Answers

Answer:

36.03 dollars.

Step-by-step explanation:

Hope this helps!

Answer: $36.03

Step-by-step explanation: 25% of $45 is $11.25, and 45-11.25 is 33.75. The sales tax is $2.28, and that plus $33.75 is $36.03.

Geometry
An angle is formed by:

Answers

Answer:

An angle is formed by the two rays.
In plane geometry, an angle is the figure formed by two rays, called the sides of the angle, sharing a common endpoint, called the vertex of the angle. Angles formed by two rays lie in a plane, but this plane does not have to be a Euclidean plane.

Please solve:
9x-14=9x+1

Answers

Step-by-step explanation:

there is no solution for this equation

220 degrees converted to radians

Answers

Answer:

3.83972

Step-by-step explanation:

give me the heart

my answer is correct

Answer:

11 pi/9 radians

Step-by-step explanation:

To convert degrees to radians, multiply by pi/180

220 * pi/180

220pi/180

11 pi/9

Which order does it go?

Answers

Subtract 4 from each side
Divide both sides by 5
Take square root of both sides
Add 3 to both sides

Which text feature best indicates that this workplace document is also a procedural document

Answers

Answer: b) the numbering

Step-by-step explanation:

the definition of a procedure is “ a series of actions conducted in a certain order or manner”

can sb please answer this

Answers

Answer:

A

Step-by-step explanation:

A line of best fit needs to match the direction of the points and fit in-between the points as much as possible

C is not the right direction

D is not the right direction

B is to the left of the points

The answer to your question is A

Given the three side lengths, how can you tell if a triangle is a right triangle?

Answer:
Square all side lengths. If the longest side length squared is equal to the sum of the squares of the other two side lengths, Then it is a right triangle.

Answers

Answer:

Square all side lengths. If the longest side length squared is equal to the sum of the squares of the other two side lengths, Then it is a right triangle.

Step-by-step explanation:

Square all side lengths. If the longest side length squared is equal to the sum of the squares of the other two side lengths, Then it is a right triangle.

Given that,

The three side length should be given. Now in order to prove the triangle is a right triangle. The following information should be considered.

The side length should be squared. The longest length side should be squared and equivalent to the sum of the square of the other two side length. Also we called as the pythagoras theorem.

Learn more: brainly.com/question/17429689

What is the value of n that makes the expression (-5y + 4) + (7y - 9) equivalent to ny – 5?

Answers

Answer:

2

Step-by-step explanation:

If we evaluate (-5y + 4) + (7y - 9), we get 2y - 5.

Therefore, N must equal 2.

what is the area of the base in the figure below? A cylinder with height 12and diameter 6

Answers

anwser- about 28.27

to figure it out the areas of the base, you just use the formula to find the area of a circle. Which is; A= r^2 times pi
(r stands for the radius)

I need help with this I will mark brainiest answer if it is correct please help

Answers

Answer:

C=40030.17

Step-by-step explanation:

2 x pi x 6371 =40030.17 hope this is what you're looking for :)

Can anyone please help me with this?

Answers

1.

20 pounds of strawberries

5 persons

20 ÷ 5 = 20 pounds ÷ 5 persons = 4 pounds per person

Answer: 4 is the pounds per person, how much each person received

2.

20 pounds of strawberries

5 pounds per person

20 ÷ 5 = 20 pounds ÷ 5 pounds/person= 4 persons

Answer: 4 is the number of people we're splitting among

At a pet store, Rhonda paid $11.50 for 3 dog bowls and 4 bones.
Kelly paid $13 for 2 dog bowls and 8 bones. How much will Andrew
pay for 4 dog bowls and 2 bones?
help

Answers

Answer:

$8.75

Step-by-step explanation:

Lets put the number of dog bowls as "x" and the number of bones as "y" When we write the equation it comes out like this:

3x+4y=$11.50

2x+8y=$13

Make the "x" equal on both side so we find the lcm of 3 and 2 which 6 so we multiply 2 on the top and 3 on the bottom which changes the equation to

6x+8y=$23

6x+24y=$39                                        Then we subtract which equals

-16y=-$-13

y=13/16 or   0.8125                                       we put the "y" on the equation which             makes

                                                       3x+3.25=11.50                                               To solve the question: 4(13/16) +  2(2.75)=$8.75                      3x=8.25: x= 2.75

Final answer:

Andrew will pay $12 for 4 dog bowls and 2 bones, after calculating the individual prices of the items by setting up and solving a system of equations based on Rhonda's and Kelly's purchases.

Explanation:

To determine how much Andrew will pay for 4 dog bowls and 2 bones, we need to establish the price of a single dog bowl and a single bone. We can do this by setting up two equations based on the transactions made by Rhonda and Kelly.

Let B be the price of one dog bowl and O the price of one bone. Therefore, Rhonda's purchase gives us the equation 3B + 4O = $11.50. Kelly's purchase gives us the equation 2B + 8O = $13.

We can solve this system of equations either by substitution or by the elimination method. In this case, elimination may be more straightforward:

Multiply the first equation by 2, which gives us 6B + 8O = $23.We now subtract Kelly's equation from this, resulting in (6B + 8O) - (2B + 8O) = $23 - $13, simplifying to 4B = $10.Now we know that one dog bowl costs B = $2.50.To find the cost of one bone, we substitute B = $2.50 into either of the original equations. Using Rhonda's equation: 3($2.50) + 4O = $11.50, which simplifies to $7.50 + 4O = $11.50, and further to 4O = $4, meaning O = $1.00.With the prices determined, Andrew's total cost for 4 dog bowls and 2 bones will be 4B + 2O, which equates to 4($2.50) + 2($1.00).Calculating this gives us $10 + $2, which is a total of $12 that Andrew will pay.

Need Help With This Question
Explain your Reasoning Plz!!!!​

Answers

Answer:

Yes

Step-by-step explanation:

If you have an equalateral triangle with the angle in the bottem left corner, then flip it sideways,right and do the same with the other but, left, it can make a straight angle

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|  \

|    \          

|      \

|        \      I tried my best

|_____\

Answer:

yes

Step-by-step explanation: you can have 2 copies and then add 60 3 times and thats 180 which is what is a straight angle hope this helps god bless

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