The sum of 19.3 and a number is 30.4. Which equation can be used to solve the problem?

Answers

Answer 1
30.4 - 19.3 =x because you see if 19.3 plus a number equals 30.4 then that must mean if u do the oppisite you get the same number so u subtract either way the solution would be 11.1
Answer 2

Answer:

YOUR CORRECT ANSWER'S (B.)

Step-by-step explanation:

I TOOK THE TEST.

Related Questions

The length of a rectangle is twice the width. If the perimeter of the rectangle is 60 units, find the area of the garden.

Answers

Set the following: Length = L    Width = W

The length is twice the width:    L = 2*W     or:  W = L/2

Perimeter: P = 60ft = 2*L + 2*W

Substituting L for W in the perimeter equation gives:

P = 60ft = 2*L + 2*(L/2) = 2*L + L = 3L

L = 60ft/3 = 20ft    W=L/2=20ft/2=10ft

Verify result:  Perimeter= P = 60ft = 2L + 2W = 2*20ft +2*10ft = 40ft+20ft = 60ft

The area of the rectangular is: Area = A = Length*Width = L*W = 20ft*10ft = 200 (ft)^2

Hopefully This Helps!!

Final answer:

To find the area of a rectangle when the perimeter is given, determine the dimensions using the relationship between length and width and then calculate the area. In this case, the area of the garden is 200 square units.

Explanation:

The length of a rectangle is twice the width. If the perimeter of the rectangle is 60 units, find the area of the garden.

Let the width of the rectangle be x. Therefore, the length is 2x.

The perimeter of a rectangle is given by 2(length + width), which in this case is 2(2x + x) = 60 units.

Solving for x, we get x = 10. Therefore, the width is 10 units and the length is 20 units. The area of the garden is length x width = 20 x 10 = 200 square units.

4a^-9
I don't know what this is
can I get some help

Answers

4a^-9 =
4 x (1 / a^9) =
4 / a^9
answer: 4 / a^9
hope this helps:D

plz give brainiest

The table below show 2 equations. Equation 1: 3x-1=7+2 Equation 2: 2x+1+4=3 which statement is true about the solution to the two equation?

Answers

You have not added your options, so I will just solve and hope that my answer is in your choices.

For the first equation we have:
3x-1=7+2
3x = 7+2+2
3x = 10
x = 10/2

For the second equation we have:
2x+1+4=3
2x = 3-4-1
2x = -2
x = -1

Therefore, there isn't a solution that satisfies both equations. Based on this, this system of equations has no solution.

The answer is d

i hope this helps

Cheryl can travel 21.6 miles on one gallon of gas. 
How far can Cheryl travel on 6.2 gallons of gas?

Answers

Cheryl can travel 133.92 miles on 6.2 gallons of gas

Your answer would be, 133.92 my good friend!

Each of the25 students in mr faces class sold 16 raffle tickets. If it each ticket cost $15 how much money did mr faces class raise

Answers

6000 US dollars! that's the answer
Well you have to multiply 16 x $15 to find out the answer!

How can area models be used to solve multiplication problems

Answers

using strategies based on place value and the property of operations 

what is 95 divided by 5?

Answers

95 divided by 5 is 19. You can count by fives until you get to 95.
your answer is would be 19

The ticket price for the ice hockey match was £14.50. The price has increased by 7%.





How much is a ticket after the increase?

Answers

7% = 0.07

14.50 *1.07 =  15.52 new price

Use this figure to find the value of ∠FOD

Answers

the answer is B
Since you know that BOD is a right angle add 12 And 15 and subtract your answer from 90

Lisa has a certain amount of money. She spent 39 dollars and has 3/4 of the original amount left. How do you write this equation?

Answers

Let’s call the amount of money she started with “m”.

What this problem is saying is that “taking away 39 from m is equivalent to taking 3/4 of m.” What do “taking away 39 from,” “equivalent to,” and “3/4 of” translate to mathematically?

Density practice
A gas tank hold 50L. If the density of gasoline is 0.7 g/ml how much mass will the tank of gas have

Answers

the tank of gas will have a density of 35g

Use any model you choose to solve the story problem.


Anura found a can of paint that was full. She was able to paint 3 fence posts with the paint.



What fraction of the can of paint did Anura use on each fence post?

Answers

she used 1/3 or the paint on each fence post 

Jacob is ordering custom T-shirts for his soccer team. Long-sleeved shirts cost $15 each and short-sleeved shirts cost $10 each. Jacob can spend at most $250 and he wants to order at least 20 shirts.
Let x represent the number of long-sleeved shirts. Let y represent the number of short-sleeved shirts. Which inequalities are among the constraints for this situation?
Select each correct answer.

x+y≤250

15x+10y≥250

x+y≥20

15x+10y≤250

15x+10y≥20

x+y≤20

Answers

The answers are:

15x+10y≥250

x+y≤20

Write using algebra.
If Jim is x years old now, and his sister is twice as old, how old was his sister 7 years ago?

Answers

I think his sister would be 7, 7 years ago but I'm not sure
The answer is 2x-7

And this needs to be 20 characters (so don't mind this)

Pat has nine cards. Frank has two more cards than Steve. Steve has 3 cards how many more cards does Pat have than Frank?

Answers

pat =9
steve = 3
frank = 5 (3+2)
9-5 = 4
answer is 4

Based on the information given, Pat has 4 more cards than Frank.

The number of cards that Pat has = 9 cards

Number of cards that Steve has = 3 cards

Since Frank has two more cards than Steve, the total number of cards that Frank has will be: = 3 + 2 = 5

In order to know the number of cards that Pat has more than Frank, we will have to calculate the difference between the cards that they've. This will be:

= Pat's card - Frank's card

= 9 - 5

= 4

Therefore, Pat has 4 more cards than Frank.

Read related link on:

https://brainly.com/question/1902152

A ball always bounces to 3/5 of the height from which it falls. It falls from a height of 1meter how high will it rise after the second bounce?

Answers

this is the answer check it out
Final answer:

After the second bounce, the ball will rise to a height of 0.36 meter.

Explanation:

To find the height the ball will rise after the second bounce, we can use the given information that the ball always bounces to 3/5 of the height from which it falls. In this case, the ball falls from a height of 1 meter.

For the first bounce, the ball rises to 3/5 of 1 meter, which is 0.6 meter. For the second bounce, the ball will rise to 3/5 of 0.6 meter. To calculate this, we multiply 3/5 by 0.6 meter, which gives us 0.36 meter.

Therefore, after the second bounce, the ball will rise to a height of 0.36 meter.

You put $800 in a savings account at 4% annual interest and leave it there for five years. What is the principle?_____

Answers

at the end of five years, you will have made 160 dollars on interest,  a total of $960, because four percent of 800 is 32, and you multiply that by 5 years to get 160.

5 less than the quotient of a number and 3 is -7

Answers

[tex] \frac{x}{3} [/tex]  -  5  =  -7  .
____________________________________________
This would be one way to write the expresion/equation; in which "x" represents the unknown number.

Now, to solve for "x" ;
____________________________________________
Given:
____________________________________________
[tex] \frac{x}{3} [/tex]  -  5  =  -7  ;

Add "5" to EACH SIDE of the equation:
_____________________________________________
[tex] \frac{x}{3} [/tex]  -  5  + 5 =  -7  + 5 ;

to get:

[tex] \frac{x}{3} [/tex]  = -2 ;

x = (-2 * 3) ;
_________________________________
x =  - 6 .
_________________________________

Using distributive property solve 4x39=n

Answers

The answer is 156. Hope that helped!!! ;)
The correct answer is 156

Patti is using mental math to evaluate the expression (70+12.8+30)+6.1. She recognizes that the expression will be easier to simplify if she can combined 70 and 30 before she works with other numbers. How do the properties of operation allow pattie to take that approach?

Answers

Answer: Explanation is given below.

Step-by-step explanation: Given that Patti is using mental mathematics to evaluate the expression (70+12.8+30)+6.1 and recognises that it will be easier to simplify if she can combined 70 and 30 in the beginning. We are to explain the way in which the properties of operation allow Patti to take that approach.

We will be using the following associative property of real numbers:

[tex](a+b+c)+d=(a+c)+(b+d).[/tex]

Therefore, the simplification is as follows:

[tex](70+12.8+30)+6.1\\\\=(70+30)+(12.8+6.1)\\\\=100+18.9\\\\=118.9.[/tex]

Hence explained.

Answer:

She can use the commutative property to rewrite the expression as (70 + 30 + 12.8) + 6.1

( D )

The Leukemia and Lymphoma Society sponsors a 5k race to raise money. It receives $55 per race entry and $10,000 in donations, but it must spend $15 per race entry to cover the cost of the race.

Write and solve an inequality to determine the number of race entries the charity needs to raise at least $55,000

(I have no idea how to do this. It's just extra credit but I need it)

Answers

The net amount they raise is the amount they receive minus what they pay in expenses.

They receive:
$10,000 fixed amount in donations
$55 per person

They pay:
$15 per person

If there are x number of entries, they receive 55x from the entries.
Also, they pay 15x for the entries.

The net amount they raise is amount they receive min us amount they pay:

55x + 10,000 - 15x

which simplifies to

40x + 10,0000

They want to raise at least $55,000.
At least $55,000 means $55,000 or more.
They want to raise an amount greater than or equal to $55,000.

Now we write the inequality:

40x + 10,000 >= 55,000

Now we solve the inequality for x, the number of entries.

40x >= 45,000

x >= 1125

They must have 1125 or more race entries to raise $55,000.

Henry bought a movie tickets for himself and 6 of his friends.each movie ticket cost $7.85.How much money did Henry spend on tickets?

Answers

$54.95 would be the answer because Henry and six friends would be 7 time the cost of each movie ticket $7.85
Since 7.85*7=54.95 the answer is $54.95

Alan travels 3/10 of his journey car. 3/20 by bicycle 1/12 by boat and walks the rest what fraction of the journey did he walk? If the journey is 140 km,how many km did he walk?

Answers

The denominators are: 10, 20, and 12
The LCD (lowest common denominator) is 60 as this is the smallest multiple of 10, 20, and 12.

Get each fraction to have a denominator of 60
3/10 = (3/10)*(6/6) = (3*6)/(10*6) = 18/60
3/20 = (3/20)*(3/3) = (3*3)/(20*3) = 9/60
1/12 = (1/12)*(5/5) = (1*5)/(12*5) = 5/60

The fractions 
3/10, 3/20, and 1/12
are equivalent to
18/60, 9/60, and 5/60
in that exact order

Add up the second set of fractions to get
(18/60) + (9/60) + (5/60) = (18+9+5)/60 = 32/60 = 8/15

The result of adding the fractions and reducing leads to 8/15 meaning that Alan takes 8/15 of the journey to use his car, bike and boat

The rest of the journey (7/15) is done walking
Multiply this with the total distance 140
(7/15)*140 = (7/15)*(140/1)
(7/15)*140 = (7*140)/(15*1)
(7/15)*140 = (980)/(15)
(7/15)*140 = (975+5)/15
(7/15)*140 = (975/15)+(5/15)
(7/15)*140 = (65)+(1/3)
(7/15)*140 = 65 & 1/3

The answer as a mixed number is 65 & 1/3
The answer as an improper fraction is 980/15
The approximate answer in decimal form is 65.33 (rounded to 2 decimal places)

A chess set is on sale for $75.00, which is 40% off of its original price. What was the original price of the chess set?

Answers

Okay, to solve this, let's use the variable 'p' to represent the original price:
Because we know the amount of discount and the percentage off, we know that 60% of the original price is $75.
Knowing this, we can write an equation:
0.6p = 75
There are multiple ways to solve this, but I'll just use the method I prefer
6p = 750
p = 750/6
p = 125
The original price of the chess set was $125

find a pair of 3 digit numbers that have an estimated difference of 520

Answers

the answer is 250 and 770

The cost to make a coffee table is x dollars. The store sells the table for 60% more than how much it costs to make. What expression shows the selling price of the coffee table?

Answers

Y equals 0.6 divided by x

Find (18 × 106) + (5 × 104). A) 1.8005 × 106 B) 1.8005 × 107 C) 1.805 × 106 D) 1.805 × 107

Answers

D.) 1.805 multiplied by 107

How many books does Matt have to sell to make $30 for the week?

Answers

Matt needs to sell approximately 28 books to make $30 for the week.

To find the number of books Matt needs to sell to make $30 for the week, we need to use the given information that Matt gets $6 for selling 9 books and $9 for selling 11 books.

Let's first find the amount of money Matt makes for each book:

For 9 books, Matt makes $6, so he makes $\frac{6}{9} = \frac{2}{3}$ dollars per book.

For 11 books, Matt makes $9, so he makes $\frac{9}{11}$ dollars per book.

Now, we can set up an equation to find the number of books Matt needs to sell to make $30:

2/3 x + 9/11 x=30

where (x) is the number of books Matt needs to sell.

Simplifying the equation, we get:

x = 28

Therefore, Matt needs to sell approximately 28 books to make $30 for the week. Since he cannot sell a fraction of a book, he would need to sell either 28 or 29 books to make $30.

after school in friday,Lamar Walked to the corner Store and bought 2 candy bars for $0.97 each and a soda for $1.41.what was his total purchase

Answers

(2*0.97)+1.41
$3.35 is the answer.
$3.35 total add them togather

What is 3x+15-9=2(x+2) ?

Answers

SOLVING:

3X + 15 - 9 = 2(X + 2)
3X + 6 = 2X + 4
3X - 2X = 4 - 6
X = - 2  ===> The great answer.

TESTING:

[tex]3(-2)+15-9=2(-2+2)\\ \\-6+6=2(0)\\ \\\boxed{0}=\boxed{0}\quad\checkmark\ Correct.[/tex]
GOOD LUCK...!!
Other Questions
Becky bought 4 pounds of grapes for $8.24.How much did the grapes cost per pound? ________ is an erosional contact between tilted, older strata below and horizontal, younger strata above. What kind of change occurs when salt dissolves in water? chemical change solution change physical change substance change Description Describe which of the two points lies on the graph of the line-4x+y=-11A.3,1B.1,3 find the y-intercept of 2x - 7y =28 When Spain owned Louisiana, it was a buffer zone between the British colonies and which country ? Effects of acute blood loss are due to a decrease in intravascular volume, which can lead to ____. When the estates general first met, what was the main controversy?(French Revolution and Napoleon) According to science, the fastest speed possible for anything is the speed of light, which is about 186,000 miles per second. That is, in one minute, light travels 11,160,000 miles. The star nearest Earth is the Sun. It's about 93,000,000 miles from Earth. Therefore, it takes sunlight about eight minutes to travel to Earth. So, when you see the Sun, you aren't seeing it as it is. You're seeing it as it was eight minutes ago. Since the stars are much farther away than our Sun, imagine how far back in time you're seeing them! It's obvious that humans will never travel to planets near even the closest stars. Which statement from this passage is an example of an opinion? A.It's obvious that humans will never travel to planets near even the closest stars.B.The star nearest Earth is the Sun.C.According to science, . . . the speed of light . . . is about 186,000 miles per second.D.So, when you see the Sun, you aren't seeing it as it is. Write an equation for each graph. When it is said that a perfectly competitive firm is a price taker, this means? When you are sick, extra white blood cells are created by the _____.lymph systemexcretory systemcardiovascular systemendocrine system Which historical event most likely shaped the cultural values of british society in the 1700s? Can carbon 14 be used for dating lava flows Why was the american victory at the battle of new orleans in 1815 significant? Dnde est la llave para el coche? keyenginebrakeantenna 540 less than the product of 54 and a number is 918 Select the correct use of the introductory comma in the sentence. Completely exhausted by the hike, the climbers rested at the foot of the peak. participial phrase adverb clause interjection The second time you are exposed to a specific pathogen, you have a faster, less severe illness. This is because: The chain of command is also known as the Steam Workshop Downloader