Which equation has a constant of proportionality equal to 7?
A. 4y = 28x
B. 7y = 28x
C. 28y = 4x
D. 28y = 7x
Answers
Reasoning: 4 x 7 = 28
good luck!
The solution is Option A.
The equation which has a constant of proportionality k = 7 is 4y = 28x
What is Proportion?
The proportion formula is used to depict if two ratios or fractions are equal. The proportion formula can be given as a: b::c : d = a/b = c/d where a and d are the extreme terms and b and c are the mean terms.
The proportional equation is given as y ∝ x
And , y = kx where k is the proportionality constant
It demonstrates the equality of the relationship between the expressions printed on the left and right sides.
Given data ,
Let the equation be represented as A
Now , the value of A is
The proportional equation is given as y ∝ x
And , y = kx where k is the proportionality constant
Now , the equation is
4y = 28x
On simplifying the equation , we get
Divide by 4 on both sides of the equation , we get
y = 28x/4
y = 7x
y = 7x is of the form y = kx where the value of k is 7
Therefore, the value of k is 7
Hence , the value of proportionality constant is 7
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Related Questions
the parent’s height is 9 cm and the child’s height is 6 cm.
The child’s actual height is 1.3 m.
What is the actual height of the parent?
Answers
Answer:
1.95 m
Step-by-step explanation:
The ratio between the parent's height and the child's height stays the same.
Therefore, 9:6 = 1.5:1.
1.5:1 = x:1.3
Hence, after calculation, the parent's height is 1.95 m.
Please give Brainliest if you found this helpful!
Answer:
19.5
Step-by-step explanation:
Similar figures review
Answers
Answer:
#5 = option a (129.38 miles):
We are told that the cities are 17.25 inches apart, and that 2 inches equal 15 miles. First we have to divide 17.25 inches by 2 we end up with 8.62500 inches (not simplified yet). Next, we just take 8.62500 inches and multiply that with 15, which leaves us with 129.37500 inches. Then we just round that to the nearest hundredth which will give us 129.38 inches which means 129.38 miles as well!
#2 = option a (2.4 inches)
We know that bigger rectangle's length is 16 inch and that smaller rectangle's length is 3.2 inches. We just have to calculate the decrease of the length and we do that by dividing. We have to do 16 inches divided by 3.2 inches which equals 5. (You can double check that by multiplying 3.2 inches by 5 which would equal 16 inches) Now to find the width of the smaller rectangle, we just have to divide the width of the bigger rectangle, which is 12 inches, by 5 which would give us 2.4 inches!
#4 = ?
#6 = option c (7.2cm)
So basically I just did 25cm divided by 10cm which equals 2.5cm. (You can also do 25cm divided by 2.5cm to get 10cm if you want to double check). Then I just did 18cm divided by 2.5 cm which led me to the answer 7.2cm)
#3 = ?
Answer: A
Step-by-step explanation: 17.25/2=8.652
8.652*15=129...
rounded it would be equivalent to answer choice A.
Target offered a 60% discount off the original
price of a dresser. The amount of the discount is
$36. What is the regular price of the dresser?
HELP ASAP ITS A BIG TEST!!!!!!!!!
Answers
Answer:
60.
Step-by-step explanation:
Answer:
$57.60
Hope this helped :)
THIS IS IREADY PLEASE HELP RIGHT ANSWER (Only)
what is the relationship between each pair of corresponding?
35 7
30 6
25 5
20 4
15 3
Answers
Answer:
-5.1
Step-by-step explanation:
Each time is subtracting by 5.1
35.7 - 5.1 = 30.6
30.6 -5.1 = 25.5
25.5 - 5.1 = 20.4
20.4 -5.1 = 15.3
Bisecting Bakery sells cylindrical round cakes. The most popular cake at the bakery is The net for a cylindrical candy container is shown.
net of a cylinder with diameter of both circles labeled 1.8 inches and a rectangle with a height labeled 0.8 inches
The container was covered in plastic wrap during manufacturing. How many square inches of plastic wrap were used to wrap the container? Write the answer in terms of π.
7.92π square inches
7.2π square inches
3.06π square inches
2.34π square inches
Answers
Answer:
idek i got some else im sorry
Step-by-step explanation:
Answer:
7.92π square inches
Step-by-step explanation:
I took the test and got it right :)
what is the y-intercept of an equation
Answers
Answer:
The point on a graph where a line crosses the Y-axis (The vertical line)
Step-by-step explanation:
Find the slope of each line.
And How to solve it pls
Answers
Answer:
2/3
Step-by-step explanation:
find the slope by counting how many units it takes to go up to the next point over how many units it takes to go to the right.
rise/run
2 units to go up
3 units to go right
Answer:
The slope or onstant is 1.5 or 3/2
Step-by-step explanation:
b is point of intersection
k is the constant of porportionality
You use the equation y=kx+b
you need to select 2 points
(1,1) and (3,4)
1=k+b
4=3k+b
subract the 2 equation
3=2k
k=3/2
the constant is 3/2 or 1.5
:)
least to greatest 11/20,1/2,0.51
Answers
Answer:
1/2, 0.51, 11/20
Step-by-step explanation:
11/20 = 0.55
1/2 = 0.50
0.51
Least to greatest ---> 1/2, 0.51, 11/20
Answer:
1/2, 0.51, 11/20
Step-by-step explanation:
To find out which one is least to greatest, I suggest turning all the numbers into decimals. In order to do this you need to divide the 11 by 20 on a calculator which equals 0.55. Then, we already know that 1/2 = 0.50, and that leaves us with 0.51. So, know we order them.
May I have Brainliest please? I am so close to getting my next ranking! I just need 1 more to become an ACE!! I would really appreciate it, and it would make my day! Thank you so much, and have a wonderful rest of your day!
Simplify the expression where possible. (r^-3 s^2 t)^4
Answers
Answer:
\(\frac{(s^8t^4)}{r^{12}}\)
Step-by-step explanation:
Assuming that you tried to write:
\((r^{-3} s^2 t)^4,\)
we can multiply the 4 on the outside of the parenthesis to all the terms. Multiplying, we get
\((r^{-12}s^8t^4)\)
Because you don't want any negative powers in the top, we can move it down to get:
\(\frac{(s^8t^4)}{r^{12}}\)
Answer:
there is no sign in between the two terms in the parenthese, maybe a google search on the properties of exponents would help because that's what this seems like
Step-by-step explanation:
20 students on the field trip love the museum. If there are 40 students on the field trip, what percent love the museum?
Answers
Answer:
50%
Step-by-step explanation:
Answer: 40%
Step-by-step explanation:
TV and WY are parallel lines. Which angles are vertical angles?
Answers
Answer:
parallel lines are lines that are right next to each other and going the same way. vertical angles are where the are both together to shape kinda like a wierd t or an x
Step-by-step explanation:
simplifying expressions with integers 54-c+3c2-10
please i need help!!
Answers
Calculate the product:
54-c+6c-10
Subtract:
44-c+6c
Collect like terms:
44+5c
Answer: 44+5c
Answer:
44+5c
Step-by-step explanation:
EQUATIONS ON BOTH SIDES solve for -3 + 4x =37
Answers
Steps:
Add 3 to both sides of the equation this would add 3 to 37 making it 40 and when you add 3 to -3 it cancel out so the new equation should look like this!
4x=40
The next step is to divide both sides by four and you get the answer!
X=10
Answer: x = 10
Step-by-step explanation:
-3 + 4x =37 .Add 3 to both sides
+3 -3 +4x = 37 +3 .
The +3 and -3 'cancel' to 0; 37 +3 = 40
4x = 40 . Divide both sides by 4 .
4x/4 is x, 40/4 is 10
x = 10
GUYS PLEASE HELP ASAP I WILL MARK BRAINLIEST WITH BEST ANSWER!
Henrik grew 3 times as many potatoes as Derek grew. Derek managed to grow 49 potatoes. Henrik already had 173 potatoes harvested from his other field. How many potatoes does Henrik have in all?
its a typed answer ;-; sry i just need help so bad
Answers
how do we describe the movement of figures
Answers
Figures should be labeled with a number followed by a descriptive caption or title. Captions should be concise but comprehensive
What is the angle made by the hour hand and the minute of the clock at 8:57
Answers
Answer:
85 degrees
Step-by-step explanation:
-3 (x- 4/5) ≤ 6 solve step by step
Answers
-3x + 12/5 ≤ 6
Next, we can subtract 12/5 from both sides of the inequality to isolate the variable term on the left side.
-3x ≤ 6 - 12/5
Simplifying the right side of the inequality:
-3x ≤ 30/5 - 12/5
-3x ≤ 18/5
Finally, we can divide both sides of the inequality by -3. Since we are dividing by a negative number, we need to reverse the direction of the inequality.
x ≥ -18/15
Simplifying:
x ≥ -6/5
Therefore, the solution for the inequality is x ≥ -6/5.
Distribute the -3:
-3x + 12/5 ≤ 6
Subtract 12/5 from both sides:
-3x ≤ 6 - 12/5
Find a common denominator:
-3x ≤ 30/5 - 12/5
-3x ≤ 18/5
Divide by -3, remembering to flip the inequality since we are dividing by a negative number:
x ≥ -18/15
Simplify:
x ≥ -6/5
How many applications will your mother actually use on her new cell phone? Solve the equation you wrote in part b to find the unknown variable.
Answers
Answer:the answer should be 24
Step-by-step explanation:
good luck
QUICK 20 POINTS - MEAN ABSOLUTE DEVIATION
Answers
Answer:
11.58000
Step-by-step explanation:
Answer:
4.28
Hope This Helps! :)
Okay these are the choices, sorry. I will still give brainliest to best answer
Answers
Answer:
The turkey
Step-by-step explanation:
This is a question I don't feel like typing the answer to.
"Why is defining the problem the first step in the engineering design process?"
This is also NOT math lol
Answers
what is an equation of the line that passes through the points (4,−3) and (2,−4)
Answers
The equation of the line that passes through the points (4,−3) and (2,−4) is y = 1/2x - 5
How to determine the equation of the lineThe general formula for calculating the equation of a line is expressed with the given equation;
y = mx + c
the parameters of the equation are;
y is a point on the y -axis.m is the gradient or slope of the line.x is a point on the x - axis.c is the y - intercept of the line.From the information given, we have;
Slope, m = y₂ - y₁/x₂ - x₁
Substitute the values
Slope, m = -4 - (-3)/ 2 - 4
subtract the values
Slope = -1/-2 = 1/2
Then, the intercept is;
-4 = 1/2(2) + c
c = -4 - 1 = -5
The equation , y = 1/2x - 5
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Which of the following statements is TRUE?
A. For More information on this topic refer to the lesson titled Tips for Grocery
Shopping.
B. Advertising claims on the packages of items may be misleading.
C. The number of serving sizes in a package varies from product to product.
D. Nutrition labels provide reliable information to help evaluate a product.
E. All of the above
Answers
Answer:
B
Step-by-step explanation:
Misleading advertisements can generally be classified as fraudulent if the advertiser intended to falsify information to mislead the consumer.
number 14 NEED HELP NOW pls
Answers
Answer:
E
Step-by-step explanation:
PIZZAPIZZAPIZZAPIZZAPIZZAPIZZAPIZZAPIZZAPIZZAPIZZAPIZZAPIZZA
Answers
a car travels 100 kilometers east in 2 hours and 30 kilometers north in a half an hour. what is the average speed of the car?
Answers
Total distance=100+30=130k.m
Total time =2+1/2 hour=2.5 hours
Average speed =130/2.5=1300/25=52 km/h
Does the graph represent a function?
Answers
Hey there!
No, the graph is not a function because it has two of the same inputs, (7, -6) and (7, -7).
It also can't be a linear function because the graphs are not pointed to form a straight line.
Hope this helps!
Have a great day!
Answer: No
Step-by-step explanation: Since we can draw a vertical line that passes through two points on the graph, the relation is not a function.
For five days, Diego recorded the lengths, in minutes, of his walk to school. The mean for his data is 11 minutes. Determine which data set below is Diego’s, and prove that your choice is correct.
Answers
Data Set A: 9, 11, 13, 10, 12
Data Set B: 8, 10, 12, 14, 16
Data Set C: 10, 10, 10, 10, 10
Data Set D: 11, 11, 11, 11, 11
To find the mean, we sum up all the values in each data set and divide by the number of values:
Data Set A: (9 + 11 + 13 + 10 + 12) / 5 = 11 minutes
Data Set B: (8 + 10 + 12 + 14 + 16) / 5 = 12 minutes
Data Set C: (10 + 10 + 10 + 10 + 10) / 5 = 10 minutes
Data Set D: (11 + 11 + 11 + 11 + 11) / 5 = 11 minutes
Comparing the mean of each data set to 11 minutes, we can see that only Data Set A and Data Set D have a mean of 11 minutes. However, to prove that our choice is correct, we need to analyze the individual values in the data set.
In Data Set A, we can observe that the values are relatively close to 11 minutes, with some values slightly above and below. This variation suggests a realistic scenario where Diego's walk to school might take slightly different amounts of time each day.
In Data Set D, all the values are exactly 11 minutes. While it is not impossible for Diego's walk to consistently take exactly 11 minutes each day, it seems less likely than having some variation in the durations.
Based on these observations, we can conclude that the most plausible data set for Diego is:
Data Set A: 9, 11, 13, 10, 12
This data set has a mean of 11 minutes and exhibits a realistic variation in walk durations, making it the most likely choice for Diego's recorded lengths.
Mr. Herman's class is selling candy for a school fundraiser. The class has a goal of raising $500dollar sign by selling c box of candy. For every box they sell, they make $2.75
Answers
Answer:
$500. 500/2.75= 181 boxes
Step-by-step explanation:
You divide the amount of money by the amonunt of money for each box to find how many boxes you sell to make.
help me please...... :/
Answers
Answer:
c
Step-by-step explanation: