Answer:
Yes, the quantities are proportional.
Step-by-step explanation:
To determine whether they were proportional or not, I compared the ratio of grams of sugar to servings in each pair of data points. 4/2, 6/3, 8/4, and 10/5 were the four points. All of them can be simplified to 2/1, which tells us that each serving of sugar is 2 grams, no matter how many servings are counted. This means that the amount of sugar grows in direct proportion to the number of servings.
Question Help
Writing lan's car can go 245 miles on 7 gallons of gas. During a drive last weekend, lan used
4 gallons of gas. How far did he drive? Use pencil and paper. Explain how the problem changes if you
were given the distance lan drove last weekend instead of how much gas he used.
He drove _miles.
i inserted a picture of the question
8.6w+2.2(2w-5)=54
help plz
8th grade math
1/7 to the 2nd power
Complete the chart!! :)
Answer:
1 foot is 12 inches so 6 feet would be 72 inches
Step-by-step explanation:
12x6=72
Answer please////////
Answer:
Coordinate of B: (3, -5)
Coordinate of C: (3, 5)
Coordinate of D: (0, -1)
Step-by-step explanation:
Point A is (-2, -5).
The distance between line AB is 5 units.
The distance between line BC is 10 units.
To find the point for B, the distance is 5 units on the x axis.
The x point for point B is -2 + 5 which is 3 units. x = 3
The y point doesn't change, so the coordinate of point B is (3, -5).
___________________________________________________________
The distance between line BC is 10 units.
To find the point of C, the distance is 10 unites on the y axis.
The y point for point b is -5 + 10 which is 5 units. y = 5
The x point doesn't change, so the coordinate of point C is (3, 5).
___________________________________________________________
We find an equation for line AC. The equation is y = mx + b.
Y is any y point on the line. X is any x point on the line. M is the slope of the line. B is the y-intercept of the line.
Since D is right on the y axis, this means that the x point of D is 0.
Point C is (3, 5) and point A is (-2, -5).
We use (y2 - y1) / (x2 - x1) and substitute. Y is the y point and x is the x point.
(5 - (-5)) / (3 - (-2)) = 10 / 5 = 2
The slope of the line is 2.
With this, we get the equation of y = 2x + b
We insert one of the random x point and y point which (in this case) I choose (3, 5).
Substituting, we get -
5 = 2 * 3 + b
5 = 6 + b
b = 5 - 6
b = -1
So the y-intercept of the graph is -1 and for the graph, we get -
y = 2x - 1
D is already the line of the y-intercept, but we can make sure by inserting the x point as 0.
y = 2 * 0 - 1
y = 0 - 1
y = -1
The coordinate of point D is (0, -1).
The table shows the number of days you keep a rented movie before returning it and the total cost of renting the movie. find the rate of change in the cost of respect to time interpret its meaning
The rate of change of a linear dataset is the slope of the dataset
The rate of change of the table is 2.25, and it means that the amount you keep daily is $2.25
From the table, we have the following points
(x,y) = (4,6) (5,8.25)
The rate of change is then calculated as:
[tex]\mathbf{Rate = \frac{y_2 - y_1}{x_2 - x_1}}[/tex]
Substitute values for x and y
[tex]\mathbf{Rate = \frac{8.25 - 6}{5 - 4}}[/tex]
Simplify the numerator and the denominator of the fraction
[tex]\mathbf{Rate = \frac{2.25}{1}}[/tex]
Divide
[tex]\mathbf{Rate = 2.25}[/tex]
Hence, the rate of change of the table is 2.25, and it means that the amount you keep daily is $2.25
Read more about rates of change at:
https://brainly.com/question/13103052
Plz help Ive hurt my brain trying to do this lol.will mark brainliest.
Answer: Graph A & B
Step-by-step explanation:
Both A & B have x values that stretch from 1-6. The others are different
Dan has three dogs. He feeds them these amounts of food each day. 1 1/2 cups, 2 1/3 cups, and 3 1/2 cups. Ben has two dogs. He feed them 3 1/4 cups and 4 1/2 cups of dog food per day. Who uses more dog food? How much more?
Answer:
ben
5/12
Step-by-step explanation:
1 1/2+2 1/3+3 1/4 = 22/3 -dan
3 1/4+4 1/2 = 31/4 -ben
ben - dan
31/4-22/3
=5/12
what is another word for Angle 1?
The angle would be the 3 points surrounding it with the point that the two lines connect to being in the middle:
Angle 1 is GEF
given f ( x ) = x 3 − 6 x 2 − 11 x + 6 f(x)=x3−6x2−11x+6 find f(2)
Answer:
Step-by-step explanation:
f
(
x
)
=
x
3
−
6
x
2
+
11
x
−
6
Reemplace
f
(
x
)
con
y
.
y
=
x
3
−
6
x
2
+
11
x
−
6
Para hallar las raíces de la ecuación, remplazar
y
por
0
y resolver.
0
=
x
3
−
6
x
2
+
11
x
−
6
Reescriba la ecuación como
x
3
−
6
x
2
+
11
x
−
6
=
0
.
x
3
−
6
x
2
+
11
x
−
6
=
0
Factorizar el lado izquierdo de la ecuación.
Toca para ver más pasos...
(
x
−
3
)
(
x
−
2
)
(
x
−
1
)
=
0
Establezca la
x
−
3
igual a
0
y resuelva para
x
.
Toca para ver más pasos...
x
=
3
Establezca la
x
−
2
igual a
0
y resuelva para
x
.
Toca para ver más pasos...
x
=
2Reemplace
f
(
x
)
con
y
.
y
=
x
3
−
6
x
2
+
11
x
−
6
Para hallar las raíces de la ecuación, remplazar
y
por
0
y resolver.
0
=
x
3
−
6
x
2
+
11
x
−
6
Reescriba la ecuación como
x
3
−
6
x
2
+
11
x
−
6
=
0
.
x
3
−
6
x
2
+
11
x
−
6
=
0
Factorizar el lado izquierdo de la ecuación.
Toca para ver más pasos...
(
x
−
3
)
(
x
−
2
)
(
x
−
1
)
=
0
Establezca la
x
−
3
igual a
0
y resuelva para
x
.
Toca para ver más pasos...
x
=
3
Establezca la
x
−
2
igual a
0
y resuelva para
x
.
Toca para ver más pasos...
x
=
2
What expressions cannot be factored?
Answer:
A polynomial with integer coefficients that cannot be factored into polynomials of lower degree , also with integer coefficients, is called an irreducible or prime polynomial .
Step-by-step explanation:
Explain how to compare decimals. Use the numbers 6.75 and 6.732 to
help you explain this process.
Answer:
6.75>6.732
Step-by-step explanation:
We are given that
6.75 and 6.732
We have to compare two given decimal numbers.
First we convert like decimal number
In 6.75 there are two digits after decimal point.
In 6.732 , there are three digits after decimal point
Therefore, we put zero in 6.75 to convert like decimal number
Now, we get
6.750
Unit place of both decimal numbers are same and tenth place of both decimal number are same.
Now, hundredth place of 6.750 is 5 and hundredth place of 6.732 is 3
5 >3
Therefore, 6.750 is greater than 6.732
6.75>6.732
Steve's mom gave him $20.00 on Monday morning to use on lunches. At his school, the school lunch costs $1.75, which he bought Monday through Thursday. On Friday, he decided to buy 3 slices of pizza instead of buying the school lunch. If the pizza costs $1.80 per slice, then how much of the money is left at the end of the school week?
A.
$9.40
B.
$14.70
C.
$9.35
D.
$7.60
Morwenna rents a truck she pays $20 plus .50 per mile. Let t represent the relationship between the factor. Write an equation that represent the situation.!!!!!
Answer:
50x+20=ur mom
Step-by-step explanation:
Answer:
t = 20 + .50m
m = number of miles travelled
t = total cost
Step-by-step explanation:
t represents the total cost and m represents the number of miles travelled. Since it costs .50 per mile, you would do .50m so that you could calculate the cost based on the number of miles and since the truck at first cost 20 dollars, you would add that to the equation to. This gives you t = 20 + .50m.
First to type something random in the answer box gets 100 points!
Answer: am not the first but ty :D
Step-by-step explanation: I appreciated it!
Write the following expression as a constant, a single trigonometric function, or a power of a trigonometric function.
sec x cos x
Answer:
1.
Step-by-step explanation:
sec x cos x
= 1/cos x * cos x
= cos x / cos x
= 1.
Write an equation of the line that passes through the given points.
(-1,4) and (4, -1)
The equation is . (Type your answer in slope-intercept form.)
[tex](\stackrel{x_1}{-1}~,~\stackrel{y_1}{4})\qquad(\stackrel{x_2}{4}~,~\stackrel{y_2}{-1})\\\\\\% slope = m\stackrel{slope}{m}\implies\cfrac{\stackrel{rise}{\stackrel{y_2}{-1}-\stackrel{y1}{4}}}{\underset{run}{\underset{x_2}{4}-\underset{x_1}{(-1)}}}\implies \cfrac{-5}{4+1}\implies \cfrac{-5}{5}\implies -1[/tex]
[tex]\begin{array}{|c|ll}\cline{1-1}\textit{point-slope form}\\\cline{1-1}\\y-y_1=m(x-x_1)\\\\\cline{1-1}\end{array}\implies y-\stackrel{y_1}{4}=\stackrel{m}{-1}[x-\stackrel{x_1}{(-1)}]\\\\\\y-4=-1(x+1)\implies y-4=-x-1\implies \blacktriangleright y = -x+3 \blacktriangleleft[/tex]
At a real estate agency, an agent sold a house for $369,000. The commission rate is 4.5% for the
real estate agency and the commission rate for the agent is 25% of the amount the real estate
agency gets. How much did the agency make on the house? How much did the agent earn in
commission?
$29,700 on the hours, and $79,200 in commission.
I hope i helped! :)
HELP 7= -10s-3 solve for s!
7= -10s-3
7+3 = -10s
10 = -10s
-10s = 10
s = 10/-10
s = -1
Given the zeros of the function f (x) = x4 + 3x3 – 28x², identify whether the zero is a bounce or
cross.
Kina's mother decided to increase her pocket money by 40%. How much extra did Kina receive each week if previously she had been given J$400 per week?
Answer:
$560
Step-by-step explanation:
10% of $400 is $40. 40% of $400 is 10%x4. 40% of $400 is $160. Since her allowance increased by $160, it is now $560 per week.
$560 - if you `increase $400 by 40% the answer will be $560
find the coordinates of the point 7/10 of the way from A to B
A=(-4,-7)
B=(12,5)p
Answer:
a=(-3,-6) and b=(12,4)
from -3 to 12 is 15 units
7/10 * 15=10.5
add 10.5 to -3 to get 7.5 for the x-coordinate
from -6 to 4 is 10 units
7/10 * 10=7
add 7 to -6 to get 1 for the y-coordinate
the point 7/10 of the way from a to b is (7.5,1) ANSWER
graph these points to check your answer (the point (7.5,1) is on the line segment AB))
also, the distance from a to b is 18.0277
7/10 of this is 12.62
the distance from (-3,-6) to (7.5,1) is also 12.62
Step-by-step explanation:
What is the distance between points A(2, 9) and B(−2, 6)?
Answer: 5
Step-by-step explanation:
A plant measures 10 cm and increases in height by .02 percent each day, upon conclusion it measures 11.04 cm. What is a reasonable domain to plot the growth function?
Answer:
the correct answer should be: the rate of change is 1 cm per 2 weeks, or 1/2.
Step-by-step explanation:
I found a graph with the same problem, so I guess this is the graph to be based on. To find the rate, just determine the slope between any two points along the line. Suppose these points are: (30,10) and (50,20).
Slope = (20 - 10)/(50 - 30) = 1/2
Find the value of the constant term in the expansion of x^4 (x+3/2x^2)^5
5 is the answer ok I'll explain
A building 180 feet tall casts a 80 foot long shadow. If a person looks down from the top of the building, what is the measure of the angle between the end of the shadow and the vertical side of the building (to the nearest degree)? (Assume the person's eyes are level with the top of the building.)
Answer:
870
Step-by-step explanation:
3. There were 155 people at the basketball game. Tickets for the
game are $2.50 for students and $4 for adults. If the total money
received for admission was $492.50, how many students and adults
attended the game?
Answer:
85 students and 70 adults attended the game.
How many students and adults attended the game?
Step-by-step explanation:
Problema Solution
There were 155 people at the basketball game. Tickets for the game are $2.50 for students and $4 for adults. If the total money received for admission was $492.50, how many students and adults attended the game?
Answer provided by our tutors
let
s = the number of student tickets sold
a = the number of adult tickets sold
there were 155 people at the basketball game
s + a = 155
the total money received for admission was $492.50
2.50s + 4a = 492.50
by solving the system of equations
s + a = 155
2.50s + 4a = 492.50
we find
s = 85 students
a = 70 adults
Question 7 of 15
Which is an equation of the line through (0,0) and (5,-2)?
A. y = 2
B. y = -x
C. y = -2
D. y = x
... None?
Not A because y = 2 is shown as forever 2 so cannot go through both points.
Not B because y = -x cannot go through (5,-2)
Not C because y = -2 cannot go through (0,0)
Not D because y = x cannot go through (5,2)
Last week, Norma sold 80% of the peanut butter squares she baked. She sold 24 peanut
butter squares.
Answer:
since Norma sold 24 of the peanut butter squares that she baked and it is 80% of it. There is only 20% of the peanut butter squares she has baked. Leaving it to be only 6 peanut butter squares left.
This is because 24 is the 80% of 30. She had 30 in total and sold that 80% which is 24. So, therefore it leaves 6 peanut butter squares left. Making it 20% of what Norma baked.
