Determine the constant of proportionality, k, and interpret it in the context of each problem. 2) The graph shows the relationship between the number of euros Jason received and the number of dollars Jason exchanged during his trip to Spain. *
Answers
The constant of proportionality Or the value of Euros is 3/2 times of the value of a dollar.
What are ratio and proportion?A ratio is a comparison between two similar quantities in simplest form.
Proportions are of two types one is the direct proportion in which if one quantity is increased by a constant k the other quantity will also be increased by the same constant k and vice versa.
In the case of inverse proportion if one quantity is increased by a constant k the quantity will decrease by the same constant k and vice versa.
To obtain the constant of proportionality we'll need to determine at least two coordinate points from the graph they are, (1, 3/2) and (2, 3).
Let, no. of dollars be 'x' and no. of euros be 'y'.
So, y = kx.
3/2 = k.
Another way is (3 - 3/2)/(2 - 1).
= (3/2)/1
= 3/2.
learn more about proportion here :
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Related Questions
Which is the correct classification of the value 7pi?
A-Real, Rational, integer
B-Real, Rational
C-Irrational, Integer
D-Real, Irrational
Please Help Me ; ^;
Answers
Answer: Real, irrational
Step-by-step explanation:
Real because it is an actual measurement. Irrational because π can't be expressed as a fraction. Not an integer because integers are whole numbers.
The correct classification is -Real, Irrational
What is irrational number?Irrational numbers are the set of real numbers that cannot be expressed in the form of a fraction, p/q where p and q are integers. The denominator q is not equal to zero (q ≠ 0). Also, the decimal expansion of an irrational number is neither terminating nor repeating.
Irrational numbers are real numbers that cannot be represented as a simple fraction. These cannot be expressed in the form of ratio, such as p/q, where p and q are integers, q≠0. It is a contradiction of rational numbers.
Given number: 7* pi
Here, 7 is the real number.
But pi is real but not rational number.
pi is an irrational number.
Hence, the correct classification of 7 pi is Real, Irrational.
Learn more about irrational number here:
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The figure below is made of two identical triangular prisms. What is the volume of the figure?
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Answer:
A triangular prism is 1/2 the volume of a rectangular prism with the same dimensions.
V = BH (Base x Width) of a triangular its 1/2BH
The base is 10 x 5, 50 is the base.
The height is 6, and that would be 300 / 2 since it's triangular so its 150 inches squared for one. Since there are 2.
The total volume is 300 inches squared.
Step-by-step explanation:
23 + 18 divided (8-2) +3 ANSWER FAST PLS
Answers
Answer:
Step-by-step explanation:
Use PEMDAS rule -----> Parenthesis , Exponent, Multiplication & Division and then Addition & subtraction.
23 + 18 ÷ (8 - 2) + 3 = 23 + 18 ÷ 6 + 3 {Now do division}
= 23 + 3 + 3
= 29
need help ASAP with this ^-^
Answers
Answer:
10
Step-by-step explanation:
All you're doing is [tex]\frac{5}{8}[/tex] ×[tex]\frac{16}{1}[/tex] or [tex]\frac{5}{8}[/tex] ×[tex]16[/tex]
-
[tex]\frac{5}{8}[/tex] ×[tex]\frac{16}{1}[/tex]
so 5 × 16 = 80
and
8 × 1 = 8
The fraction becomes
[tex]\frac{80}{8}[/tex]
then you simplify ( in this case divide by the botton number/denominator) to get :
10
Answer:
10 I think
Step-by-step explanation:
BRAINLESTTTTput the words in order from fast to fastest
1.quick
2.speedy
3.swift
4.turbo
5.rapid
Answers
Answer:
turbo ra
Step-by-step explanation:
Can someone help with this? It is about quantitative comparisons.
Answers
Answer:
YES!!!
Step-by-step explanation:
I am usually good at those.
Let me see the problem so I can assist you!!
Solve the system x+y=0 −2x−y=8 *Answer should be in ( x , y ) form, will give 40 points *
Answers
Answer:
x = -8 and y= 8
(-8,8) is the answer
Answer:
(2,4) (-4,16)
Step-by-step explanation:
Subtract 2 x from both sides of the equation.
y = 8 − 2 x
Substitute 8 − 2 x for y into x ^2 − y = 0 then solve for x .
x = 2 , − 4
Substitute 2 for x into x 2 − y = 0 then solve for y .
y=4
Substitute − 4 for x into x 2 − y = 0 then solve for y .
y=16
Equation form
x = 2 , y = 4
x = − 4 , y = 16
Tom makes $25 an hour working at the local video game store. Over the past year he has saved $150 toward a new iPhone. If the iPhone cost $300, how many hours will he need to work to be able to buy the iPhone? show work plzz
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THX 8th grade math anyone that can help PLZ do so. :)(:
Answers
Answer:
The answer is B
Step-by-step explanation:
Each of the x factors multiplied by 5 gives you the dollar amount at that point. You can easily make an equation for this table.
Answer:
Step-by-step explanation:
The answer is D
How i know is because i did it the other day
Ralph wants to build a rectangular deck with a predefined area of 792 feet squared. One side of the deck will be 54 feet longer than the other. To find the side lengths, he first writes the equation (x)(x+54)=792 and later simplifies it to (x-12)(x+66)=0, where x is the length of the shorter side. Which of these are the side lengths, in feet, of the rectangular deck? Select all that apply. A. 42 B. 54 C. 12 D. 66 E. 120
Answers
Answer:
C.12 and D.66
Step-by-step explanation:
(12+54)(12)=792
66*12=792
PLZ HELPPPPPP. the choices are below for the attachment. It is a function because there is a price given for every package. It is a function because weekend packages are always $50 more than weekday packages. It is not a function because each package number has two different prices. It is not a function because there are two different packages available for $180.
Answers
Answer:
it is not a function because there are two different packages available for $180.
Step-by-step explanation:
model each two-step operation by solving.
-2x-3=5
Answers
Answer:
x=-4
Step-by-step explanation:
You have to do all this math to isolate the variable, so, first,
You have to use the opposite sign of negative 3, which is positive 3, and add on both sides!
Then, you isolate the variable by dividing -2 on both sides, which is...
-4!
A survey found that 12 out of every 15 people prefer eating out over cooking. If 500 people took the survey, how many people prefer eating out?
Answers
Answer:
400 people
Step-by-step explanation:
15 = 12
500 = x
Cross multiply
15x = 12 × 500
Divide both sides by 15
[tex]\frac{15x}{15}[/tex] = [tex]\frac{12 * 500}{15}[/tex] (* means multiplication if you do not know)
[tex]\frac{12 * 500}{15}[/tex] = 100 × 4= 400 people
Will give brainliest plus 50 points to whomever answers correctly. No random answers without the actual answer.....
Answers
Answer: Q1: D. Distribute 3 through the parenthesis
Step-by-step explanation:
As for the second question, I am not sure how to begin. Sorry
Answer:
For the first question: 3(p - 3) = 2p + 7, the first step would be to distribute 3 to both terms in the parentheses
For the second question:
6n + 11 = -7 + 3n
-3n -3n
3n + 11 = -7
-11 -11
3n = -18
3n/3 = -18/3
n = -6
Check:
6(-6) + 11 = -7 + 3(-6)
-36 + 11 = -7 + -18
-25 = -25, since these match n definitely equals -6
Marcos is organizing a fundraiser for his youth group. He spent $38.00 on paper products, $187.00 on food, and $40.00 on decorations. If his budget was $280.00, how much money does Marcos have left?
Answers
$280-$265=$15
Marcos has $15 dollars left
A scale drawing of a rectangular park is 5 inches wide and 7 inches long. The actual park is 280 yards long. What is the area of the actual park, in square yards? 35? 200? 1,400? 56,000?
Answers
Answer:
56,000
Step-by-step explanation:
The scale drawing is a 1/40 ratio so you multiply 5 by 40 and you get 200. You do 200x280 and you get 56,000.
Evaluate the expression when y=−2 and z=−5.
10y to the second power divided by z
Answers
Answer:
-8
Step-by-step explanation:
10(-2)^2 / -5
10(4) / -5
40 / -5
-8
Answer:
-80
Step-by-step explanation:
(10y^2)/z
(10*-2)^2 /-5
(-20)^2 /-5
400/-5
-80
SOORRRY ITS NOT MATHMETICSI don’t know much about this so I really need help thank you!!!
Answers
Answer:
its the first one because when its hispanic they take there last name from dad
Answer:
its the first one
Step-by-step explanation:
Help please! Number 1 only. Due an hour later
Answers
Answer: Use point-slope form.
y - y1 = m(x - x1)
Step-by-step explanation:
need help with this question. :)
just need the first one but the others could be appreciated.
Answers
Answer:i need help with same one
Step-by-step explanation:
Answer:
1. The power is being multiplied by the three on the outside of the parentheses. Both powers are being multiplied by 1.
2. 7^30
3. 54^3
4. Yes, because the communitive property you can multiply 5 and 4 and you get 20, if you reverse it 4 times 5 you still get the product of 20.
Step-by-step explanation:
I'm no 100% sure for the first on but the other are right hope this helps :)
I uhh, kinda need answers asap
Answers
Answer:
-5/2 and 2
Step-by-step explanation:
4: the slope is -5/2
5: the slope is 2/1 or just 2
you can find the slope by looking at a table and subtracting two y numbers that are right next to eachother and putting that as the numerator while the denominator is subtracting two x numbers that are right text to eachother
Determine the constant of proportionality, k, and interpret it in the context of each problem. 3) The graph shows the relationship between the weight of an object on Earth and the weight of the same object on Venus. (Hope you can see the picture well)
Answers
I am pretty sure it would be k=50 (pounds) because it goes up 50 each point goes by 50 pounds between each one. (as seen in the edited graph I made)
Answer:
it would be k=50 (pounds) because it goes up 50 each point
Ann works in a supermarket for $15.00 per hour. If her pay is increased to $18.00, then what is her percent increase in pay?
Answers
Answer:
previous salary of Ann=$15
Present salary of Ann=$18
The increase in salary=$18-$15
=$3
%increase in salary=increase in salary/previous salary
=($3/$15)×100%
=20%
To change a negative exponent to a _______. _______ the power (the_____)
Answers
what is the answer to 3x-8-2x=2
Answers
Answer:
x=10
Step-by-step explanation:
1. Do the inverse and add 8 to both sides to get 3x-2x=10
2. Combine like terms 3x-2x= 1x which simplifies to x
I need percentage, fraction, decimal That matches
Answers
Answer:
3/5=0.6=60%
1/8=0.125=12 1/2%
3/50=0.06=6%
7/8=0.875=87.5%
1/3=0.125=33 1/3%
Step-by-step explanation:
3/5=0.6
1/8=0.125
3/50=00.6
7/8=87.5
1/3=331/3%
I hope that helps
Please help me;(
If the measure of Angle F G H is 64 degrees and the measure of Angle E G D is (4 x + 8) degrees, what is the value of x? Lines E H and D F intersect at point G. 14 18 64 116
Answers
Answer:
x = 14
Step-by-step explanation:
Angle FGH and EGD are vertical angles, so they will have the same measurement.
so basically 64 = 4x + 8
subtract the 8 = 56
divide 56 by 4
x = 14
Answer:
14 is the answer i hoped i helped
Step-by-step explanation:
The length of a basket is measured to be 13 inches, but the basket is actually 1 foot long. What is the percent error in the measurement?
A) 7.6%
B) 8.3%
C) 9.2%
D) 10.7%
Answers
Answer:
D
Step-by-step explanation:
Bryce is making a model building. He raises the walls of the building by 2 centimeters, five times.
By how many centimeters does Bryce raise the walls altogether?
Answers
Answer:
10 cm!
I think...it's really basic math so...maybe?
Answer:
10 cm
Step-by-step explanation:
(2 cm)×5 = 10 cm
Bryce raises the walls 10 cm altogether.
__
You could add the raises, but multiplication is easier.
(2 cm) +(2 cm) +(2 cm) +(2 cm) +(2 cm) = 10 cm
I NEED HELP NOW!!!!
Using the strategies that we have discussed in class, find
the area of the following parallelograms and then submit
your answers here.
Answers
Answer:
A - 15 square units
B - 12 square units
C- 24 square units
Step-by-step explanation:
A - The formula for the area of a parallelogram is the base*height.
3*5= 15 square units
B- Same deal as the first one 2*6 =12 square units
C- Exact same thing 4*6 = 24 square units
Answer:
I would help you but we dont know what you learned in class so i cant. If you tell me i can cause i learned that stuff last year
Step-by-step explanation: