Answer:
Total capacity of the water tank is 400 gallons
Rate of change in water level is 20 gallons per hour
Step-by-step explanation:
The graph attached represents the gallons of water in a water tank with respect to the number of hours since it was completely filled.
The total capacity of the water tank is represented by the y-intercept of the graph that is 400 gallons.
Now to calculate the rate of change in water level we will take two points on the given line and find the slope.
There are two points (0, 400) and (5, 300) on the line.
So the slope of the line is (400-300)/(0-5)= -100/5= -20
This minus notation of slope shows that level of water is reducing and rate of change in water level is 20 gallons per hour.
A 32-cup container of disinfectant costs $19.20. What is the price per quart?
Quick algebra question 15 points and will mark brainliest if correct
Answer:
I belive it would be c
Step-by-step explanation:
because if you read the question it says the lowest point altho they are equale it still makes sence to put c
Three consecutive integers have a sum of -21. Which equation can be used to find the value of the three numbers?
X+X+ X=-21
LS
X+ 2x + 3x = -21
O x+(x+1)+(x+2) = -21
Ox+(x+2)+(x+4)=-21
Mark this and return
Save and Exit
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Answer: x + (x + 1) + (x + 2) = -21
Step-by-step explanation:
Write it as a verbal expression 27-2x
simplify 6/2√3+√6 + √6/√3+√2 -4√3/√6-√2
[tex]\frac{6}{2\sqrt{3}} + \sqrt{6} + \sqrt{6}\sqrt{3} + \sqrt{2} - \frac{4\sqrt{3}}{\sqrt{6}} - \sqrt{2}\\\frac{3}{\sqrt{3}} + \sqrt{6} + \sqrt{18} + \sqrt{2} - \frac{4\sqrt{3}\sqrt{6}}{\sqrt{6}\sqrt{6}} - \sqrt{2}\\\frac{3\sqrt{3}}{\sqrt{3}\sqrt{3}} + \sqrt{6} + \sqrt{18} + \sqrt{2} - \frac{4\sqrt{18}}{6} - \sqrt{2}\\\frac{3\sqrt{3}}{3} + \sqrt{6} + \sqrt{18} + \sqrt{2} - \frac{2\sqrt{18}}{3} - \sqrt{2}\\\sqrt{3} + \sqrt{6} + \sqrt{3^2 \cdot 2} + \sqrt{2} - \frac{2\sqrt{3^2 \cdot 2}}{3} - \sqrt{2}\\[/tex]
[tex]\sqrt{3} + \sqrt{6} + 3\sqrt{2} + \sqrt{2} - \frac{2 \cdot 3\sqrt{2}}{3} - \sqrt{2}\\\sqrt{3} + \sqrt{6} + 3\sqrt{2} + \sqrt{2} - \frac{6\sqrt{2}}{3} - \sqrt{2}\\\sqrt{3} + \sqrt{6} + 3\sqrt{2} + \sqrt{2} - 2\sqrt{2} - \sqrt{2}\\\sqrt{3} + \sqrt{6} + \sqrt{2}[/tex]
What is the justification for each step in the solution of the equation 2/3x-1/3=2(x+2)
Answer:
-13/4
Step-by-step explanation:
FREE BRAINLIEST
Write the inequality that matches the situation. The sum of twice a number and 5 is at most 15.
Answer:
See Below
Step-by-step explanation:
Ok, so you got:
The sum of twice a number and 5 is at most 15
Sum means we are going to add two things together, soo . .
___+___
Is at most means we are going to have:
___+___≤ ___
Twice a number and 5= 2x(a variable) + 5
(I'm going to use a as my variable, use whichever you like or are given)
2a + 5 ≤ __
Which will result in being greater than or equal to 15
So, your final equation would be:
2a + 5 ≤ 15
A submarine was twenty-five feet below the surface of the water and descended an
additional twenty-two and a half feet. Eventually, the submarine ascended ten feet
towards the surface of the water. What is the location of the submarine in the
water?
-37 feet below the surface of the water.
-57.5 feet below the surface of the water.
- 12.5 feet below the surface of the water.
-37.5 feet below the surface of the water.
Answer:
37.5
Step-by-step explanation:
you take 25 + 22.5 = 47.5 then you -10 and you get 37.5! Hope this helps!
I need help with this equation it's confusing
3 - 4x= -89 is the equation i hope it's right
PLEASE HELP ! ALGABRA 1
Answer: No solutions (C)
Explanation: The two lines have the same slope but different Y intercept this means they will increase/decrease at the same rate but since they start at different locations on a graph, they will never touch making it parallel
Please can someone help with this question ASAP
Answer:
yes
Step-by-step explanation:
three is a factor of 12 because you can multiply it by 4 and you get 12 (a factor is a number you can multiply by another to give you a product)
A side of the triangle below has been extended to form an exterior angle of 118°. Find the value of x.
Answer:
62 degrees
Step-by-step explanation:
the total angle of a straight line like this hypotenuse would be 180. So it's 180-118=62
A baking class had 45 students on Monday and only 32 students on Tuesday. What was the change in percent? (Round to the nearest hundredths)
Answer:
28.89 percent
Step-by-step explanation:
45-32 is 13 and 13 is 28.89 percent of 45
Hope this helped!
I need help to change the subject of the formula to W
Answer:
[tex]w=\frac{h}{m} -\frac{3}{3}[/tex]
I hope this is what you were asking for :)
Find the range of the function.
Answer:
equation of the line passing through two points
we can chose two points from the graph
I took (5,0) and (0,5)
x-x1/x2-x1=y-y1/y2-y1
x-5/0-5=y-0/5-0
(x-5)*5=y*(-5)
x-5=-y
y+x=5
Step-by-step explanation:
range of the function is [- infinite, infinite]
if x is determined as R number then even range of the function will be R ,real numbers.
Find the slope -16x=-6-2y
Will Mark Brainliest if show work. FAST!! PLSS? 6x-4=4x-20 Solve for X
Answer:
x= -8
collect like term than divide both sides
6x-4x = -20+4
2x= -20+4
2x=-16
x= -8
Answer:
x = -8Step-by-step explanation:
6x-4=4x-20 Solve for X
6x-4x = -20+4
2x = -16
x = -8
proof
6(-8) - 4 = 4(-8) - 20
-52=-52
Ediths bird feedercontains 4 1/2 pounds of birdseed and decreases by 3/4 pound each day Do you los Verdes peter contains 4 1/2 pounds of birdseed and decreases by 3/4 pound each dayJune's birdfeeder contains 3 pounds of birdseed and decreases by 1/4 pound each day if need a person as remove seeds from the birdfeeder how many days will it take for Edith and Junes birdfeeders to contain the same amount of bird seed
Answer:
It will take 3 days for their bird feeders to contain the same amount of bird seed
Step-by-step explanation:
Let the number of days it will take their bird feeder to contain the amount of bird seed be x
For Edith, the amount of birdseeds that will be left after x days will be;
4 1/2 - 3/4(x)
= 9/2 - 3x/4
For June, the amount of birdseeds that will remain after x days will be;
3 - 1/4(x)
= 3 - x/4
Since after x days, the amount of birdseeds will be equal;
Mathematically;
9/2 - 3x/4 = 3 - x/4
Let’s work with decimals to make things easier;
4.5 - 0.75x = 3 - 0.25x
4.5 -3 = -0.25x + 0.75x
1.5 = 0.5x
x = 1.5/0.5
x = 3
The equation of the line in this graph is y=____ x + ____
The grades on a history midterm at Gardner Bullis are roughly symmetric with μ = 69 μ=69mu, equals, 69 and σ = 3.5 σ=3.5sigma, equals, 3, point, 5. Ishaan scored 65 6565 on the exam. Find the z-score for Ishaan's exam grade. Round to two decimal places.
Answer:
-1.14
Step-by-step explanation:
The given information in statement is
mean=μ=69
standard deviation=σ=3.5
Let X be the Ishaan's exam score
X=65
The Z score can be computed as
[tex]z=\frac{x-mean}{standard deviation}[/tex]
[tex]z=\frac{65-69}{3.5}[/tex]
z=-1.1429
z=-1.14 (rounded to two decimal places).
Thus, the computed z-score for Ishaan's exam grade is -1.14.
Answer:
-2.67
Step-by-step explanation:
khan academy
The equation of a line is -2 x+ 5y = -20.
What'is the x-intercept of the line?
Answer:
-20= 5y+ -2
Step-by-step explanation:
all you have to do it flip it
Solve for x. (Type in the number ONLY)
Julio, Kira, and Ida each want to buy art supplies. Julio wants to spend between $6 and $7. Kira wants to spend between $4 and $6. Ida wants to spend between $8 and $9. Drag items to the box under each person's name to show what they could have bought. Julio, Kira, and Ida each want to buy art supplies. Julio wants to spend between $6 and $7. Kira wants to spend between $4 and $6. Ida wants to spend between $8 and $9. Drag items to the box under each person's name to show what they could have bought.
Answer: image below is the answer
Step-by-step explanation:
$1.80 + $1.20 = $3.00 < $1.86 + $1.23 < $2.00 + $1.50 = $3.50
Double these supplies will cost between 2 × $3.00 and 2 × $3.50.
Suppose Kira started with 2 pencils.2 x $1.23 = $2.46
Think about more items Kira could buy so that her total cost is more than $4 but less than $6.
Suppose Ida started with 1 drawing pad and 2 pencils.$1.80 + ($1.10 x 2) = $4.00 < $1.86 + ($1.23 x 2) < $2.00 + ($1.25 x 2) = $4.50
Think about more items Ida could buy so that her total cost is more than $8 but less than $9.
AnswerJulio: $6 - $7
one paintbrush
two drawing pads
Kira: $4 - $6
two pencils
one drawing pad
Ida: $8 - $9
two pencils
three drawing pads
Eight students in a small class made the test scores shown in the table. What was the mean absolute deviation for the class?
The mean absolute deviation for the class is, 10.96
What are the types of representing data?Data refers to the elements that make up persons, things, events, and ideas. It could be an integer, a title, or anycast. Data must be tabulated after collection in order to study their prominent characteristics. The presentation of data is the name given to such a configuration.
Bar Chart, Histogram, Line Graph, Pie Chart, Frequency Distribution Table.
Given,
Student Score
Tom 89
Jon 72
Sue 98
Jill 78
Zeke 62.
Therefore, The mean of the data set is,
= 399/5
= 79.8.
Now,
Total of data value - mean = 54.8
54.8/5
= 10.96
Q. Five students in a small class made the test scores shown in the table.
Student Score
Tom 89
Jon 72
Sue 98
Jill 78
Zeke 62
What was the mean absolute deviation for the class?
A) 10.96
B) 35.44
C) 52.87
D) 79.80
learn more about mean absolute deviation here :
https://brainly.com/question/10528201
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There are 120 Calories in a 34-cup serving of cereal. How many Calories are there in 6 cups of cereal
Answer: 960 calories in 6 cups of cereal
Step-by-step explanation:
Answer:
960 calories ✌️✌️.. . ..what is the distance between the two points A(6,-2) and B(-2,4)
Answer:
[tex]d = 10[/tex]
Step-by-step explanation:
[tex]d = \sqrt{(x_2-x_1)^2+(y_2-y_1)^2}[/tex]
Simply plug in the 2 coordinates into the distance formula to find distance d:
[tex]d = \sqrt{(-2-6)^2+(4-(-2))^2}[/tex]
[tex]d = \sqrt{(-8)^2+(4+2)^2}[/tex]
[tex]d = \sqrt{64+(6)^2}[/tex]
[tex]d = \sqrt{64+36}[/tex]
[tex]d = \sqrt{100}[/tex]
[tex]d = 10[/tex]
Answer:
10 units
Step-by-step explanation:
( x1, y1) =A(6,-2)
(x2, y2) =B(-2,4)
Using distance formula,
AB ^2 = (x2-x1) ^2 +(y2-y1) ^2
=(-2-6)^2 +(4+2)^2
=64+36
=100
Therefore, AB=10 units
All sweaters at a store are on sale at a 20% discount. What would be the sale price of a sweater regularly priced $402 State what strategy and tool you will use to answer the question, explain your choice, and then find the answer.
Answer:
A sweater was on sale at 40% off the regular price
Step-by-step explanation:
Choose the best graph that represents the linear equation:
X = -3
the difference of eight and twice a number
Answer:
8-2x
Step-by-step explanation:
Delicious Doing caterers events at a flat rate $500 plus $100 per hour after the first 2 hours. Cathy's Catering has a flat rate of $620 per event plus $70 per hour after the first three hours. What is the most amount of hours you could hire Cathy's Catering for and it cost less than Delicious Doings? Write an inequality that could be used to solve this problem
Answer:
3 hours
Step-by-step explanation:
Let the number of hours worked = x
Delicious Doing caterers events at a flat rate $500 plus $100 per hour after the first 2 hours.
$500 + $100 × x
500 + 100 × 1
After the first 2 hours = $500 + $100
= $600
After the first 3 hours = $500 + $100 × 2
= $700
Cathy's Catering has a flat rate of $620 per event plus $70 per hour after the first three hours.
$620 + $70 × x
620 + 70x
After the first 3 hours
= $600 + $70
= $670
What is the most amount of hours you could hire Cathy's Catering for and it cost less than Delicious Doings?
The Inequality is given as:
Cathy's Catering for < Delicious Doings
620 + 70x < 500 + 100x
Collect like terms
620 - 500 < 100x - 70x
120 < 30x
120/30 < x
4 < x
Therefore, the most amount of hours the most amount of hours you could hire Cathy's Catering for and it cost less than Delicious Doings is 3 hours