This graph shows how the total number of postcards Kendra buys is related to the number of days she spends on vacation.
What is the constant of variation? Write your answer as a fraction.
Answers
In the given context the constant of variation(k) is 2/5.
What is the constant variation?The link between variables remains constant because of the constant of variation.
It is useful to use one of the following formulas to determine the constant of variation for an equation/
If k is the variational constant, then either x = k/y (inverse variation) or
x = ky (direct variation) should be used.
From the given graph we can observe the relationship between the number of postcards Kendra buys is related to the number of days is in direct variation when x = 5, y = 2.
∴ x = ky.
5 = 2k.
k = 2/5.
The constant of variation is 2/5.
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Related Questions
The percent increase from 18 to 26?
Answers
x + 3y = 1 −3x − 3y = −15 solved by substitution please show work so i can understand
Answers
Answer:
x=7
y= -2
Step-by-step explanation:
x+3y=1 ---------------- (1)
−3x−3y=−15 -------------(2)
Solve Equation (1) for x
x=1−3y
Substitute x=1−3y in equation (2)
−3(1−3y)−3y=−15
−3+9y−3y=−15
−3+6y=−15
6y=−15+3=−12
y=−12/6=−2
y=−2
Substitute y=−2 in equation (1)
x+3(−2)=1
x−6=1
x=1+6=7
x=7
Rolando is making buttons that are shaped like circles. Each button has an area of
62 square centimeters. Which measurement shows the circumference of each of the buttons in centimeters?
Reminder: A=π r 2
Helppppp this is due in 5 mins!!!1 :(((
Answers
The radius= 4.21 cm
The circumference of the circle is 26.44 cm.
we have given that
Area = 62 square centimetres.
What is the formula for the area of circle
[tex]A=\pi r^{2}[/tex]
A=62 and pi=3.14
[tex]62=3.14r^{2}[/tex]
find the value of r square divide both side by 3.14
[tex]r^2=\frac{62}{3.14}[/tex]
[tex]r^2=17.75\\[/tex]
[tex]r=4.21cm[/tex]
[tex]circumference of circle =2\pi r[/tex]
[tex]C=3.14)(4.21)\\\\C= 2 (13.22) \\\\C= 26.44.cm[/tex]
Therefore we get,
The radius= 4.21 cm
The circumference of the circle is 26.44 cm.
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help pleaseeeeeeeeeeeeeeeeeee brainliest will be coming to you
Answers
Answer:
8 in or .67
Step-by-step explanation:
Answer:
1 foot
Step-by-step explanation:
he used up 3/4 of it so 16x0.75=12 to find remaining length subtract 16-12=4
so there is a 4 foot board left then he gives 1/4 of that to his brother 4x0.25=1
so he gave his brother 1 foot of wood
identify the coefficient of the term -3gh question worth 21 points
A. -3
B. 3
C. g
D. gh
Answers
Explanation: the coefficient is the number in front of the variable(s).
Example: 4a
the coefficient of this would be 4.
Help me with this!!!!!
Answers
Answer: it would be y=-4x+2
Answer:
the second option (y= -4x + 2)
Step-by-step explanation:
i have 5 minuets please answer (image included)
Answers
Answer:
The second one !!
Step-by-step explanation:
You always start from the origin... (0, 0) !! From the bottom of that function, from the origin, you would move to the right 1, down 4 in order to get where the graph is in the picture !!
i hope this made sense... have a good day !
Convert 5 hours to minutes. 200 minutes 300 minutes 150 minutes 250 minutes
Answers
Answer:
300 mins
Step-by-step explanation:
1 hours = 60 mins
5 hours = 5×60=300 mins
Answer:
300
Step-by-step explanation:
5 * 60 (minutes in an hour) = 300
Match each whole number with a rational exponential expression
Answers
2-27
3-216
4-8
5-729
6-343
rewrite the formula to find I.
A=Iw
Answers
Answer:
l=a/w
Step-by-step explanation:
In order to find I you would need to isolate it. In order to do this, you divide both sides by w and end up with a/w=l.
Write and solve an equation to determine the value of x in the figure. a. 3x 84; 252 b. 3x 84; 28 c. 3x 84; 84 d. 3x 84; 81
Answers
Answer:
by men
Step-by-step explanation:
Don't forget to wash your lunch dishes and buy the rice and potatoes I asked ;:)
Simplify.
(-4t^2+6t-2)+(t²+7t+3)
Answers
Answer:
(-4t^2+6t-2)+(t²+7t+3)
-4t²+6t-2+t²+7t+3
-4t²+t²+6t+7t-2+3
-3t²+13t+1
Acetaminophen is a common pain reliever and fever reducer. Here is a graph showing the amount of acetaminophen, in milligrams, in an adult's body at different times after they take a normal dose. 1. What is the vertical intercept? What does it mean in this situation? 2. What fraction of the medicine remained after one hour? 3. Write an equation that represents the amount of medicine, a, after t hours.
Answers
Answer:
I don't know 1
2. 3/4
3. y= 1000(0.75)^x
Step-by-step explanation:
According to the information depicted on the graph:
Vertical intercept = 1000This is the initial Value of acetaminophen in the body just after taking the normal dose ; At time, t = 0Fraction left after 1 hour = 0.75Amount after t hours = [tex]y(t) = 1000(0.75)^{t}[/tex]The vertical intercept is the value of the y - intercept, where the line crosses the y - axis. ; vertical intercept = 1000
The y - intercept is the amount of the drug in the body 0 minutes after taking it.
Fraction of drug left after one hour :
t(1) ÷ t(0) = 750 / 1000 = 3/4 = 0.75Amount of medicine left after t hours :
Initial amount(rate of decrease)^time[tex]y(t) = 1000(0.75)^{t}[/tex]
Hence, the function which models the graph is [tex]y(t) = 1000(0.75)^{t}[/tex]
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At the deli, 2 turkey subs and 5 veggie subs cost $29. 4 turkey subs and 3 veggie subs cost
$30.
a) Create a linear system to model the equation. Include let statements
b) Solve the linear system to find the cost of a turkey sub and the cost of a veggie sub.
Answers
Answer:
4/9 of sales are veggie 5/9 are turkey
4/(4+5)=4/9
5/(4+5)= 5/9
4/9 x 27 = 12
5/9 x 27 = 15
12 veggie subs sold and
15 turkey subs sold
12+15=27 total sold
Step-by-step explanation:
Someone help with this plz? Will mark Brainlist
Answers
Answer:
here
Step-by-step explanation:
There is a bag filled with 4 blue, 3 red and 5 green marbles. A marble is taken at random from the bag, the colour is noted and then it is not replaced. Another marble is taken at random. What is the probability of getting 2 reds?
Answers
Answer:
Step-by-step explanation:
4+3+5= 12 marbles
3/12 * 2/11 = 6/132 = 4.5%
What is the best buy for the following advertise sale on pop A(eight cans for $4.88 B(10 cans for $5.80 or C(3 cans for d cans for $7.20
Answers
Cause you can get 10 cans of pop for only 92 cents more.
If this helped mark me brainliest please!!
Buying 10 cans for $5.80 is the best deal.
What is unitary method?The unitary method is a technique for solving a problem by first finding the value of a single unit, and then finding the value of a single unit, and then finding the necessary value by multiplying the single unit value.
According to the question
We have
Cost of eight cans is $4.88
⇒ cost of one can = [tex]\frac{4.88}{8}[/tex] = $0.61
Cost of 10 cans is $5.80
⇒ cost of one can = [tex]\frac{5.80}{10}[/tex] =$0.58
Cost of 3 cans is $7.20
⇒ cost of one can = [tex]\frac{7.20}{3}[/tex] = $2.4
Hence, buying 10 cans for $5.80 is the best deal.
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The sum of a number and negative six is greater than 9
Answers
Answer:
x
−
6
Step-by-step explanation:
"Six less than.." means "Subtract 6 from".
Do not confuse this with "Six less..." which means "Subtract from 6".
Confusing, I know.
We know that "Double a number" means
2
x
, where
x
is your mystery number.
Therefore, we have:
2
x
−
6
, which translates to "6 less than 2x" or "6 less than twice a number"
Solve the equation and check the solution b - 1/4 = 3 1/2
Answers
Answer:
b = 15/4
Step-by-step explanation:
B=(7/2*2/2)+1/4
B=14+1/4=15/4
B=15/4 or 3 3/4
50 POINTS!!! ASAP!!! WILL MARK BRAINLIEST!!!
3. Angelica uses the point (4, 3) to represent the location of her house and uses the point (10, 8) to represent
the location of a gas station. Each unit on the graph represents 1 mi. She wants to drive to the gas station
using a straight line. How far is the gas station from Angelica’s house? Show your work.
Answers
Answer:
It would be 7.81 miles.
Step-by-step explanation:
I hope this helps you out
Answer:
Distance between Gas Station and House = 7.81 miles.
Given: House location ( 4, 3 ) and Gas station location ( 10, 8)
On graph 1 unit = 1 mile.
To find: Distance between Gas Station and House
We use the Distance formula to find the distance between two points
From given points and formula,Since, 1 unit = 1 mile
Therefore, Distance between Gas Station and House = 7.81 miles.
Step-by-step explanation:
done the test
Can I get some help?
Answers
Answer:
B and D
Step-by-step explanation:
Because using them pea 0 in the denominator, which you can't have.
Simplify the following expression.
(2d – 3)(2d – 3)
Answers
Answer:
[tex]4d^2-12d+9[/tex]
Step-by-step explanation:
Okay, so lets break this problem down. We are given two binomials to multiply together. The simplest way to get our answer is by using the F.O.I.L method. This is done by the following:
F: First
O: Outer
I: Inner
L: Last
To say simply, the first term in the first parenthesis or 2d will be multiplied the first term in the second parenthesis 2d.
Here are the steps:
[tex](2d-3)(2d-3)\\2d*2d=F\\2d*-3=O\\-3*2d=I\\-3*-3=L\\Now:\\2d*2d=4d^2\\2d*-3=-6d\\-3*2d=-6d\\-3*-3=9\\$4d^2-6d-6d+9\\Combine Terms\\4d^2-12d+9[/tex]
I would be happy to help you again in the future, and hope that this provided some clarification for you. Have a nice day! :D
Help will mark Brainliest graph is then show me a pic pls
Answers
Answer:
Is this what you are looking for?
Which expression represents sin(g) for the triangle shown ?
Answers
Answer:
a
Step-by-step explanation:
sin G=(opposite side)/hypotenuse=x/z
Anyone know? Please
Answers
Answer:
B
Step-by-step explanation:
X = 3
Y= 5
8. Find the area of the square.
79.54
90.51
128
64
256
Answers
Answer:
c
Step-by-step explanation:
????????????????????????
Answers
Answer:
um a
Step-by-step explanation:
I'm pretty sure (98%) it is A.
Let me know if I'm wrong.
The vertices of a triangle are A(-1,4), B(4, 5),
and C(6, -2). After a dilation with center (0,0)
and a scale factor of 3, the vertices are translated
T(-2,5).
a. Is the image congruent to the original triangle?
Is the image similar to the original triangle?
b. What are the vertices of AA'B'C', the final
image?
Answers
Answer:
sim tem final sim amigo se eu erra mi disputa por favor
Find the measure angle of b.
Answers
Answer:
A
Step-by-step explanation:
b and 55° form a right angle = 90° , then
b + 55° = 90° ( subtract 55° from both sides )
b = 35°
Antonio ran 129 laps at the park. Alan ran 20% more than that. how many laps did Alan run
Answers
Answer:
154.8
Step-by-step explanation:
20% is equal to 20/100= 0.20. So, 0.20 multiplied by 129 will give you 20% of 129 which is 25.8. If Alan ran 20% more then you add 25.8 to 129 which gives you an answer of 154.8.
Equation: 20/100= 0.2
0.2* 129= 25.8
25.8+129= 154.8
Alan ran 154.8 laps.