1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
yaroslaw [1]
3 years ago
12

Roni wants to write an equation to represent a proportional relationship that has a constant of proportionality equal to 7/25. S

he writes the equation y=x+7/25. What error is Roni making?
Mathematics
2 answers:
Sergeeva-Olga [200]3 years ago
6 0
The error here is that the proportionality constant is added to the other physical quantity (say x) which makes no sense at all. When two quantities are proportional it means that their ratio is always same no matter what. So if y and x are proportional then,
↪ y/x=constant
↪ y/x=7/25
↪ y=7x/25
And this should be the correct relationship between y and x.
Sveta_85 [38]3 years ago
5 0
The \frac{7}{25} should be the coefficient of x, not a constant added to x. Like this:

y= \frac{7}{25} x
You might be interested in
How much should you put in an investment paying a simple interest rate of​ 5% if you needed​ $4000 in eighteen​ mont
Eddi Din [679]

now, there are 12 months in a year, so 18 months is really 18/12 of a year, thus

~~~~~~ \textit{Simple Interest Earned Amount} \\\\ A=P(1+rt)\qquad \begin{cases} A=\textit{accumulated amount}\dotfill & \$4000\\ P=\textit{original amount deposited}\\ r=rate\to 5\%\to \frac{5}{100}\dotfill &0.05\\ t=years\to \frac{18}{12}\dotfill &\frac{3}{2} \end{cases} \\\\\\ 4000=P[1+(0.05)(\frac{3}{2})]\implies 4000=P(1.075) \\\\\\ \cfrac{4000}{1.075}=P\implies 3720.93\approx P

6 0
2 years ago
In a southern statek, it was revealed that 5% of all automobiles in the state did not pass inspection. of the next ten automobil
lbvjy [14]
Well it’s simple just do this
4 0
3 years ago
What is the domain
xenn [34]
<h3>Answer: Give the domain and the range of each quadratic function whose graph is described. The vertex is (−1,−2)(−1,−2) and the parabola opens up.</h3>

8 0
2 years ago
Read 2 more answers
Cassie has test grades of 62, 85 and 89 on the first three tests in herpre-algebra class. What are the possible scores she can m
Vsevolod [243]

Explanation:

The test grade for 1st three tests = 62, 85, 89

Let the fourth test score = x

The result we hoping to get is grade B.

Let's find the average of the four test score

\text{Average = }\frac{Su\text{ m of all test score}}{nu\text{mber of test score}}\begin{gathered} s\text{ um of test scores = 62 + 85 + 89 + x} \\ nu\text{mber of test score = 4} \\ \frac{\text{62 + 85 + 89 + x}}{4}=\text{ Average} \end{gathered}\begin{gathered} A\text{ grade B represents atleast 80} \\ \text{Atleast represents }\ge \\ \frac{\text{62 + 85 + 89 + x}}{4}\text{ }\ge\text{ 80} \\ \frac{\text{236 + x}}{4}\text{ }\ge\text{  80} \end{gathered}\begin{gathered} \text{236 + x }\ge\text{ }80(4) \\ \text{236 + x }\ge\text{ }320 \\ \text{subtract }236\text{ from both sides:} \\ 236\text{ - 236 + x }\ge\text{ }320\text{ - 23}6 \\ x\text{ }\ge\text{  84} \end{gathered}

This means Cassie needs to score 84 or more to get a grade of B

In ineq

3 0
1 year ago
Consider the following quadratic equation. f(x) = 9x^2
dem82 [27]

Answer:

y=9x2

y=9x2

Step-by-step explanation:

8 0
3 years ago
Other questions:
  • A scale drawing has a scale of 2 cm :21 km. find the actual length for a drawing length of 4.5 cm
    7·2 answers
  • The base of a parallelogram is x+4 and the area is 5x+20 what is the height?
    5·1 answer
  • There are 6 red balloons there are 2 yellow balloons how many balloons are there in all?
    9·1 answer
  • A marching band with 75 members makes two rectangular marching formations. One rectangle has 6 rows and the other rectangle had
    11·1 answer
  • Can someone tell me what is the answer please
    7·2 answers
  • How would you solve this(what is the equation of the line that passes through the point (3,4) and has a slope of -2/3?)//delta m
    7·1 answer
  • Graph the equations below using slope-intercept form
    15·1 answer
  • A painter spends 3 hours working on a painting. A sculptor spends 2 and 2/3 times as long working on a sculpture. How long does
    10·2 answers
  • Find the difference 98.54-11.23=
    5·1 answer
  • The circumference of a circle is 50.24 meters.
    6·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!