Simplify the expressions by combining like terms

4.2j + 6.7j - 5j - 5

Answers

Answer 1

Answer:

5.9j-5

Step-by-step explanation:

(4.2+6.7-5)j-5

Answer 2
2j+6.7j-5j is 3.7j and 5 cant be combined because it isnt a like term due to the absence of j next to it. so 3.7j-5

Related Questions

McKenzie purchased tomatoes for $1.24 per pound. McKenzie spent a total of $8.06. How many pounds of tomatoes did McKenzie purchase?

Answers

8.06 divide by 1.24 = 6.5
she purchased 6.5 pounds
8.06 divided by 1.24= 6.5
McKenzie bought 6 and half (6.5) tomatoes.

Evaluate the given expression when x = 3.

Enter the number only.

Answers

3^3 + 6*3+ 5
27 + 6*3 + 5
27+ 18 + 5
The answer is 50

Answer:

50

Step-by-step explanation:

If x=3 then x^3 would be 3 with the exponent of 3. It would look like 3x3x3=27

6x would be 6 times 3 which is 18.

Then you have just an extra 5.

Then add them all together. 27+18+5=50.

Therefore, your answer is 50.

Which of these systems of equations would be best solved using the subtraction​ method?
I. 2x−7y+3y = 4 −6x−4y = −52
II. 2y = −5x+6x−5 y = 2x−6
III. −7x+3x+2y = 4 4x−6y = −52

Answers

Answer:

Step-by-step explanation:

1. x+2y=6 or x=6-2y

3x-2y=2

3(6-2y)-2y=2

18-6y-2y=2

18-8y=2

-8y=-18+2

-8y=-16

y=-16/-8

y=2 ans.

x+2*2=6

x+4=6

x=6-4=2 ans.

Proof:

3*2-2*2=2

6-4=2

2=2

I leave the rest for you to practice with.

3. 4x+y=7

2x+5y=-1

 

5. 3x+2y=-2

6x-y=6

Solve the system using the elimination method. Show all your steps.

7. -3x+3y=3

3x+y=9 add.

---------------------------------

4y=12

y=12/4

y=3 ans.

3x+3=9

3x=9-3

3x=6

x=6/3

x=2 ans.

Proof:

-3*2+3*3=3

-6+9=3

3=3

I'll leave the rest for practice.

9. -5x+12y=20

x-2y=-6

11. 3x+2y=1

4x+ 6y= 7

no links Translate the new algebraic expression you created in Question 1 to a verbal expression 7(2j + 3 + 2j).

Answers

Answer:

Seven times two times 'j', plus three, plus two times 'j'"

Step-by-step explanation:

7(2j + 3 + 2j)

7 ([2*j ]+ 3 + [2*j])

Good luck!!

The volume of one of the sections of Tank A is 24 cubic feet. The volume of the other section of Tank A is 96 cubic feet. What is the total volume, in cubic feet, of Tank A? {dont solve this, This is to help with part B}
A. 4
b. 72
c. 120
d. 2304

Tank B has the same volume as Tank A. The volume of one section of Tank B is 45 cubic feet. What is the volume, in cubic feet, of the other section of Tank B? Enter your answer in the response box. {solve this}

Answers

Answer:

the answer is 141

may it help you

The answer is 141__________

whatas half of $8.90 jhvbycgtfrd

Answers

Half of $8.90 = $4.45

The problem we are working is:

If John can paint half of a room in two-thirds of an hour, what part of the room can he paint in a full hour?

Use the table at the right. What part of the room will John paint in one hour?

Answers

Answer:

Answer: 0.75(3/4) part of the room

Step-by-step explanation:

Answer:

0.75(3/4) part of the room

Step-by-step explanation:

if he takes 2/3 hours to paint 0.5 room

then he will take 1 hour to paint x

cross multiply we have

x= 0.5/2/3

x=0.5*3/2

x= 1.5/2

x=0.75 part of the room

75/100= 15/20=3/4 part

Use grid paper to find the median of the data. Then find the median of the lower half and the median of the upper half of the data. 5, 8, 10, 1, 7, 6, 15, 8, 6

Answers

Answer:

points

Step-by-step explanation:srry

Answer:

3, 7, 8, 5, 12, 14, 21, 13, 18

Step-by-step explanation:

A roast beef sandwich costs $6.75. A customer buys multiple roast beef sandwiches. Write an equation that represents the situation. Use x to represent the number of roast beef sandwiches. Then determine how many sandwiches the customer buys.
Amount used for payment: 80$
The change received: $19.25
An equation that represents this situation is _____

HELP GIVING A LOT OF POINTS FOR THIS I NEED AN EQUASION!!!

Answers

The equation is
80 - 6.75x = 19.25
80-$6.75x =$19.25 This is the answer I think

He served the interests of the mid-western states.

Answers

Answer:

is this supposed to be a question?

Step-by-step explanation:

Yes. Absolutely. Correct. Outstanding.

pls help me with this math problem.

Answers

Answer:

the answer is c

Step-by-step explanation:

Shirts are on sale for 30% off. The original price of one shirt is $15. What is the total cost, in dollars, of 2 of these shirts at the sale price, including a7% sales tax? Enter your answer in the space provided.

Answers

Since it is 2 shirts
15 times 2 = 30
30% of off 30 dollars is 21 dollars
7% tax increase will come to 22.47
The total cost should be $22.47
22.47 is your answer

Pam and her sister have a pattern of saving money. Pam saved 40 dollars and her brother saved 100 dollars. Pam says that this means that for every 2 dollars she saves, her brothers saves 5. Is she correct? Show and explain your thinking

Answers

Answer:
Pam is correct!


Explanation:
Pam saved 40 dollars
Pams brother saved 100 dollars
Every 2 dollars Pam saves her brother saves 5
If you divide 40 by 2 and divide 100 by 5, you will get 20. Because the equation equals the same amount, Pams statement is true!
Pam is right in this question

Help......................

Answers

1. 100,000
10 x 10 x 10 x 10 x 10

2. 4.41
2.1 x 2.1

3. you can just put 6.25%
1/4 x 1/4
6.25% i think hope it helps

HALP PLEASE DO 6 AND 7 PLEASEEE

Answers

Answer:

Step-by-step explanation:

6) Convert mixed fraction to improper fraction and then plugin the values in the formula.

[tex]l= 3\frac{1}{3} yard=\frac{10}{3}\\\\w = 1\frac{5}{9} yard=\frac{14}{9}\\\\h =2\frac{1}{4} yard=\frac{9}{4}\\\\Volume of wood shed = l * w *h\\\\= \frac{10}{3}*\frac{14}{9}*\frac{9}{4}\\\\= \frac{5}{3}*\frac{7}{1}*\frac{1}{1}\\\\=\frac{5*7}{3}\\\\=\frac{35}{3}\\\\=11\frac{2}{3} cubic yard[/tex]

b) 10 cubic yard is less than 11 2/3 cubic yard. So, it will fit in the wood shed.

7) Right side rectangular prism:

l = 16 in

w = 5 in

h =  20 - 14 = 6 in

Volume 1 = 16 * 5 * 6 = 480 cubic inches

Left side rectangular prism:

l = 9 in

w = 5 in

h =14 in

Volume 2 = 9 * 5 * 14 = 630 cubic in

Volume of composite solid = 480 + 630 = 1110 cubic inches

What is the solution to the inequality below? x + 3 > 7

Answers

Answer:

x>4

Step-by-step explanation:

x+3>7

bring the 3 to the other side by changing it into a minus making it

x>7-3

=x>4

X>4





because if you do the math that’s the correct anwser I have advance math

On a scale 5 cm is 12 yards. If the length is 30 yards, how many cm is this on the scale?

Answers

Answer:

12.5 cm I would believe

Step-by-step explanation:

30 divided by 12 is 2.5, 5 times 2.5 is 12.5

whats the percentage?

Answers

Answer:

blue:2%

pink:40%

orange:25%

white:33

Step-by-step explanation:

Blue= 2%
White = 33%
Pink=40%
Orange=25%

A sphere and a cylinder have the same radius and height. The volume of the cylinder is 48 centimeters cubed.

Answers

Answer:

Step-by-step explanation:

32 cm

The volume of the cylinder is 48 centimeters cubed. What is the volume of the sphere? The answer is 32cm

I need help on this math question...

Answers

P, v, and s!
V: for every 3 there is 1
P: for every 3 there is 2
S: because y = x times 2

In the equation x + y = 8, find the value of x if y = 3

3
5
7
11

Answers

Answer:

11

Step-by-step explanation:

x+y=8     y=3

x+3=8

-3     -3

x=11

Answer:

substitute y in the equation

x+3=8

then we solve for x

transpose 3 to the right 8-3=5so therefore x=5

only do the highlighted ones please and thank you

Answers

Answer:

1. 193.2 in³

4. 628.32 ft³

Step-by-step explanation:

For the rectangular prism, just find the area of each individual side and add. For the cylinder, just do πr²×h, with r being the radius and h being the height.

Describe, step-by-step how to find the slope of a line through two points

Answers

Step One: Identify two points on the line.

Step Two: Select one to be (x1, y1) and the other to be (x2, y2).

Step Three: Use the slope equation to calculate slope.

The equation used to calculate the slope from two points is: m= y2 - y1 / x2 - x1

Example

Let's say that points (15, 8) and (10, 7) are on a straight line. What is the slope of this line?

Step One: Identify two points on the line.

In this example we are given two points, (15, 8) and (10, 7), on a straight line.

Step Two: Select one to be (x1, y1) and the other to be (x2, y2).

It doesn't matter which we choose, so let's take (15, 8) to be (x2, y2). Let's take the point (10, 7) to be the point (x1, y1).

Step Three: Use the equation to calculate slope.

Once we've completed step 2, we are ready to calculate the slope using the equation for a slope:

The tree diagram shows the sample space of​ two-digit numbers that can be created using the digits 9​,2 1​​, and 8. What is the probability of choosing a number from the sample space that contains both 2 and 8​?

Answers

Answer:

Given :  the sample space of​ two-digit numbers that can be created using the digits 9,7,1, and 8.

To Find : probability of choosing a number from the sample space that contains both 7 and 8.

Solution:

TREE DIAGRAM

       9                    7                      1                    8

       ↓                     ↓                      ↓                  ↓

-------------------      ----------------    -----------------    ---------------

↓      ↓     ↓    ↓    ↓       ↓  ↓  ↓   ↓    ↓     ↓   ↓    ↓  ↓   ↓   ↓

9     7     1     8     9    7    1     8    9   7   1    8     9   7   1    8

Total Sample space  =  16

Contains both 7 and 8

is ( 7 , 8)  or ( 8 , 7)

Hence probability of choosing a number from the sample space that contains both 7 and 8.  =  2/16

= 1/8

= 12.5 %

Step-by-step explanation: I spent lots of time typing out and working out the answer to your question so please mark Brainliest because no matter what you are always the Brainliest of them all! Have a wonderful day!

Please see image below

Answers

7.81 is the answer, enjoy

B. In the boys' long jump, Kevin jumped a distance of (6x1) + (9x 1/10) + (8x1/100)+(3x1/1000) meters. Leon jumped a distance of 6.093 meters. Kevin said he jumped farther than Leon. Is Kevin correct? Explain why or why not.

Answers

6*1 = 6

Next...

1/10 = 10% which equals 0.1
0.1 * 9 = 0.9

Now...

1/100 =1% which equals 0.01
So that means that 0.01 * 8 = 0.08

Lastly... 0.0010 * 3 = 0.003

You add
6 + 0.10 + 0.08 + 0.003 and you get 6.183.... (Kevin’s distance) which is obviously a farther distance than 6.093.

Kevin is correct :)

~~~~~~~~sorry~~~~~~~~

Answers

Why sorry what happened have a wonderful day

I don’t know the answer pls help I’ll give you brainliest!! 19 points.

Answers

Answer:

it is A i think i am a nub tho

Step-by-step explanation:

Answer:

D I think

Step-by-step explanation:

:D PLZ HELP WITH MI MATH

Answers

18cm square

I think domt know

It’s 18 so you are correct

At a football stadium, 20% of the fans in attendance were teenagers. If there were 350 teenagers at the football stadium, what was the total number of people at the stadium?

Answers

Answer:

The answer is 1750

Step-by-step explanation:

Because 20% of 1750 is 350

Answer:

1750 is the total number of people at the stadium

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