It costs $31.80 to fill a car that holds 20 gallons of gas. What is the constant of proportionality that relates the cost in dollars, y, to the number of gallons of gas, x?
Answer:
y=1.59x
Step-by-step explanation:
price= (number of gallons)x(cost per gallon)
31.80/20 gallons=1.59 per gallon
price= (number of gallons)(1.59)
pls mark branliest
How do you solve multi step equations (ik how to do) but with the variables and doing distributive property? I know to start you distribute parenthesis but after that I kinda get lost. Explain it by using an example equation and go deep into explanation and you will totally get brainiest!!
Answer:
Let's say we have this equation, for example⤵⤵⤵:
[tex]12 - 6(x + 10) = 60[/tex]
You obviously know that first you must distribute -6 amongst everything inside the parenthesis, and that will give you -6x - 60. Then you'd rewrite the equation with this in mind, to get
12 - 6x - 60 = 60
Next, you need to combine the like terms, in this case 12 and -60, to get -48. Now you have
-6x - 48 = 60
Afterwards, you'd do the opposite of -48 and add it on both sides of the equal sign. Now you'll have -6x = 108
Finally, you'd divide -6 on both sides, in order to get x by itself, to get x = -18
Hopefully, this example/explanation helps you understand the concept better :)
What is the answer to the equation 3=the square root of b-1
Answer:
B= 2
Step-by-step explanation:
helppppp meeeeee!!!!. The first ten multiples of 7 and the first four multiples of 9 are listed in the table below. Fill in the next five multiples of 9, and then find the least common multiple, or LCM, of 7 and 9.
Type the multiples in the increasing order.
Answer:
63
Step-by-step explanation:
7, 14, 21, 28, 35, 42, 49, 56, 63, 70.
9, 18, 27, 36, 45, 54, 63, 72, 81, 90.
A:63
the next five multiples of 9 are 45, 54, 63, 72, and 81, and the LCM of 7 and 9 is 63.
Here are the first ten multiples of 7 and the first four multiples of 9:
Multiples of 7: 7, 14, 21, 28, 35, 42, 49, 56, 63, 70
Multiples of 9: 9, 18, 27, 36
Next five multiples of 9:
45, 54, 63, 72, 81
To find the least common multiple (LCM) of 7 and 9, we can identify the smallest multiple that both numbers share. From the lists, we see that the least common multiple of 7 and 9 is 63.
Therefore, the next five multiples of 9 are 45, 54, 63, 72, and 81, and the LCM of 7 and 9 is 63.
To know more about LCM :
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6 – 3 + 4 – 2 =_ + _
Answer:
6-3+4-2= 3+2
Step-by-step explanation:
6-3=3 4-2=2
Is the sky blue???????
No No the sky is not blue.
A clear cloudless day-time sky is blue because molecules in the air scatter blue light from the sun more than they scatter red light. When we look towards the sun at sunset, we see red and orange colours because the blue light has been scattered out and away from the line of sight.
To understand why the sky is blue you need to remember how color works. Color is largely caused by how well an object absorbs the light spectrum. When you see a blue sky you only see blue because all the other colors were absorbed in the air. Any object with color works that way. For example a red ball is read because all the colors of light are absorbed by the ball except for red. This reflected light is what gives the object color.
This is what happens with the sky. The atmosphere is denser than we imagine and the different gases give the atmosphere unique properties in how it absorbs, diffuses, and reflects light. When sunlight passes through our atmosphere a portion of it is scattered and absorbed. The remainder either reaches the surface or is reflected back. The portion that makes it to us observers is 75 percent.
This process is called diffused sky radiation. So to review, we color because objects due to texture of dyes and surfaces absorb all light wavelengths and reflect back one or more. The reason we see the sky as blue is because the molecules in the air scatter the light absorbing most wavelengths of light except for blue.
In addition to this the sky is gray and overcast because of the water droplets in the atmosphere in the forms of clouds and humidity. water refracts light equally unlike air molecules in the atmosphere. This means we get the entirety of white light only it is dimmer just like when you shine a light through a white sheet.
The fact we see a blue sky is good thing because its shows that are atmosphere is at work shielding us from the full energy of the sun’s rays. While the sun is the largest source of energy to our planet, a lot of its high energy radiation that is deadly for living things. Our atmosphere plays it part by shielding us from that. So when you see a blue sky with your kid you can tell them it means the sky is acting like a huge shade blocking out the bad parts of the sun.
Answer:
thats cool
Step-by-step explanation:
Solve pls brainliest! the first one to answer it gets the brainliest
Answer:
11/6
1.83333….
:)
Jim has a bank account balance of −$15.46. As soon as he realizes this, he deposits $25.50 in the account.
What is Jim's bank account balance after the deposit is made?
Enter your answer in the box
Answer:
so his answer will be
$10.04 as from my predictions
Answer:
40.96
Step-by-step explanation:
15.46 plus 25.50 equals 40.96
Just say 1,2,3,4,5,6 or 7 and there are more than 1 answer WORTH 90 POINTS!! HELP ME
help me pls its geometry
Answer:
The first answer is segment bisector
please help!!! Thanks!!
Answer:
C. [tex] \dfrac{\sqrt{7}}{2} [/tex]
Step-by-step explanation:
[tex] \dfrac{\sqrt{14}}{2\sqrt{2}} = [/tex]
[tex]= \dfrac{\sqrt{2 \times 7}}{2\sqrt{2}}[/tex]
[tex]= \dfrac{\sqrt{2} \times \sqrt{7}}{2\sqrt{2}}[/tex]
[tex] = \dfrac{\sqrt{7}}{2} [/tex]
Answer: C. [tex] \dfrac{\sqrt{7}}{2} [/tex]
Arrange from least to greatest
5/8, 1/3, 2/5, 1/2, 3/4, 1/10
I can't think of a single number that they all go into so if anyone could help me figure this out, I'd be super grateful
Answer:
1/10, 1/3, 2/5, 1/2, 5/8, 3/4
All of the points in the graph are on the same line. Find the slope of the line.
Answer:
Step-by-step explanation:
take (1,3) and (9,7)
slope=(7-3)/(9-1)=4/8=1/2
2
1. A local zoo had 750 visitors on Saturday. If
20% of the guests traveled Prom out of town,
how many local guests visited the zoo on
Saturday?
Answer:
600
Step-by-step explanation:
[tex]\bold{Heya~!}[/tex]
[tex]\sf{What~is~9x~12~x~7~+~2x~?[/tex]
✏ [tex]\underline{\large \huge{\mathfrak{Note:~Explanation~your~answers,~With~your~own~words.}}}[/tex]
Thanks~
complete the scale by labeling the remaining tick marks
Answer:
Can you provide a picture?
I cannot help you if you don't.
Find the nth term of this quadratic sequence
3, 8, 15, 24, 35
Answer:
[tex]a_n= (n+2)^2-1 =(n+3)(n+1)[/tex]
Step-by-step explanation:
If you add 1 to each number, you get a perfect square: 4, 9, 16, 25, 36, which are the squares of 2, 3, 4, 5, 6...
[tex]a_n= (n+2)^2-1 =(n+3)(n+1)[/tex]
Note that the two expressions are the same, but one might be more convenient than the other if you are manually calculating terms.
The height of a building is proportional to the number of floors. The
figure shows the height of a building with 8 floors. Complete parts a
and b.
h= 128 ft
a. Write the ratio of height of the building to the number of floors. Then, find the unit rate, and
explain what it means in this situation. Fill in the correct answers to complete the sentences.
The ratio of height of the building to the number of floors is 1. The unit rate is . This means that
each floor of the building is ft high.
Answer:
Step-by-step explanation:
Ok friend
Answer:
204
Step-by-step explanation:
100
help i dont get this stuff
Order from least to greatest.
5/18, 1/4, 1/6, -0.8
I'll give you the brain thing if your right. plz help me
Answer: -0.8, 1/6, 1/4, 5/18
The negative number is the smallest. To find the order for the fractions, find a common denominator and then order them. The common denominator of 18, 4, and 6 is 36.
So, 5/18 becomes 10/36, 1/4 becomes 9/36, and 1/6 becomes 6/36.
So, the final order is -0.8, 1/6, 1/4, 5/18.
:)
Pls I need help!!!! Will mark Brainiest!!!
Answer:
The answer is 2,000,000,000
Step-by-step explanation:
I hope this helped
Simplify 3x^2y^4 x 2x^5y
What is the correct answer
Answer:
Mia
Step-by-step explanation:
The slope is 6 using y = mx + b where m is the slope
Ordered pair (0, 4) and (-1, -2) are points on the blue line. Check to see if the slope = 6.
Slope = (change in the y-values)/(change in the x-values)
Slope = (-2 - 4)/(-1 - 0)
Slope = -6/ -1
Slope = 6
Therefore Mia is correct.
What is 8 4/8 - 5 5/6
Answer:
2.66
Step-by-step explanation:
Answer: 2.66
or if you want in fraction form 8/3
9.
A line passes through (–7, –5) and (–5, 4).Write an equation for the line in point-slope form.
Rewrite the equation in standard form using integers.
A. y + 5 = 9/2(x – 7); –9x + 2y = 53
B. y – 5 = 9/2(x + 7); –9x + 2y = –53
C. y + 7 = 9/2(x + 5); –9x + 2y = 31
D. y + 5 = 9/2(x + 7); –9x + 2y = 53
Answer:
D. y + 5 = 9/2(x + 7); –9x + 2y = 53
Step-by-step explanation:
The equation:
y - y 1 = ( y2 - y1 ) / ( x2- x1) * ( x - x1 )
y - ( - 5 ) = ( 4 + 5 ) / ( - 5 + 7 ) * ( x - ( - 7 ) )
y + 5 = 9/2 ( x + 7 )
y + 5 = 9/2 x + 63 /2 / * 2
2 y + 10 = 9 x + 63
- 9 x + 2 x = 53
Answer:
C ) y + 5 = 9/2 ( x + 7 ) ; - 9 x + 2 y = 53
Option C is correct
Step-by-step explanation:
Point slope form:
The equation of line is given by:
....[1] where m is the slope and a point lies on the line.
Given that:
A line passes through (-7,-5) and (-5,4).
Calculate slope:
Slope is given by:
Substitute the given values we have;
Simplify:
Substitute thee value of m and (-7, -5) in [1] we have;
Simplify:
⇒
Using distributive property :
Subtract 9x from both sides we have;
Subtract 10 from both sides we have;
Therefore, an equation for the line in point-slope form is and the equation in standard form using integers is
What i can do: Solve each problem.
Answer this question on the photo
30 points
Answer:
1/3, 1 4/9, 9 8/15
Step-by-step explanation:
Joshua wants to attend a community college that charges $4,600 per year for tuition. His grandparents will contribute $1,000 to pay towards his first year of college. If Joshua wants to save the money he makes at his job for the next 2 years, how much money will he need to save each month to afford to pay for one year's tuition?
Answer:
$150 per month
Step-by-step explanation:
The amount of money that he will need to save each month to afford to pay for one year's tuition will be $ 150.
What is Algebra?Algebra is the study of mathematical symbols, and the rule is the manipulation of those symbols.
Joshua wants to attend a community college that charges $4,600 per year for tuition.
His grandparents will contribute $1,000 to pay for his first year of college.
If Joshua wants to save the money he makes at his job for the next 2 years.
Then the amount of money that he will need to save each month to afford to pay for one year's tuition will be
⇒ ($ 4600 - $ 1000) / 24
⇒ $ 3600 / 24
⇒ $ 150
More about the Algebra link is given below.
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Bonsoir, svp si quelqu'un pourrait me le faire ce soir ce serait extrêmement gentil je n'y arrive pas du tout.
Merci d'avance
6 consecutive numbers add up to a total of 69. What is the highest number
Answer:
14.
Step-by-step explanation:
The 6 numbers are 9, 10, 11, 12, 13, and 14. They add up to 69.
At summer camp there are 40 boys out of 70 campers.what is this ratio written in simplest form
Answer:
4/7 is the simplified answer !!
Which is greater a bottle containing 64 fluid ounces or a bottle containing two liters of water?
Answer:
sure the bottle of 2 liters is greater but just a little. the 64 oz are equal as 1.89 liters
