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
kondaur [170]
3 years ago
14

Which situation represents a proportional relationship?

Mathematics
1 answer:
Natalka [10]3 years ago
7 0

Answer:

B) Jack biked 5 miles in 25 minutes and 8 miles in 40 minutes.

Step-by-step explanation:

we know that

A relationship between two variables, x, and y, represent a proportional variation if it can be expressed in the form y=kx

The ratio between the two variables is a constant called constant of proportionality k

k=y/x

<u><em>Verify each case</em></u>

A) Julie sold 4 necklaces for $12 and 9 necklaces for $25.

\frac{4}{12}=\frac{9}{25}

Multiply in cross

4(25)=9(12)\\100\neq108

Is not true

therefore

The situation not represent a proportional relationship

B) Jack biked 5 miles in 25 minutes and 8 miles in 40 minutes.

\frac{5}{25}=\frac{8}{40}

Multiply in cross

5(40)=8(25)\\200=200

Is true

therefore

The situation represent a proportional relationship

C) Larry packed 24 apples in 6 boxes and 46 apples in 9 boxes

\frac{24}{6}=\frac{46}{9}

Multiply in cross

24(9)=46(6)\\216\neq276

Is not true

therefore

The situation not represent a proportional relationship

D) Allie put 14 pieces of candy in 2 bags and 30 pieces of candy in 4 bags

\frac{14}{2}=\frac{30}{4}

Multiply in cross

14(4)=30(2)\\56\neq60

Is not true

therefore

The situation not represent a proportional relationship

You might be interested in
Also need help for this question!! Someone please help
SVEN [57.7K]
Given profit, 
p(t)=0.4t^2+5.3t-8
After the first year, t=1
p(1)=0.4*(1^2)+5.3*1-8=-2.3
Answer: the annual loss of the coffee shop after the first year (i.e. the second year) is $2,300.
7 0
3 years ago
Can someone give me the steps to do this like regroup help?
Ymorist [56]
The answer is 21.9

Hope this helps good luckkk :)
6 0
2 years ago
Read 2 more answers
Can someone kindly explain and answer this for me please!
Lubov Fominskaja [6]

Answer:

25

Step-by-step explanation:

7 * 7 = 49

24 * 24 = 576

576 + 49 = 625

\sqrt{625} = 25

Please mark as brainliest

5 0
3 years ago
Read 2 more answers
Cot0 + tan0 = sec0csc0
Lelechka [254]

Answer:

??

Step-by-step explanation:

7 0
3 years ago
Multiply or divide the following measurements. Be sure each answer you enter contains the correct number of significant digits.
nydimaria [60]

Answer:

93.4 g/mL x 20. mL = 1868g.

489.7m / 53.061 s = 9.23 m/s

216.3 m/66.4 s = 3.26 m/s.

Step-by-step explanation:

Let's analyze each case.

93.4 g/mL x 20. mL

Hewe we are multiplying g/ml*ml. So we have the answer is (g*ml/ml) = g.

So

93.4 g/mL x 20. mL = 1868g.

489.7m / 53.061 s

We are dividing a measurement in m by a measurement in s. So the answer is in m/s.

So

489.7m / 53.061 s = 9.23 m/s

216.3 m/66.4 s

Same as above.

We are dividing a measurement in m by a measurement in s. So the answer is in m/s.

So

216.3 m/66.4 s = 3.26 m/s.

6 0
3 years ago
Other questions:
  • Regardless of the algorithm being used, a search through an array is always performed:
    8·1 answer
  • A map has a scale of 1 in: 25 mi. Two cities are 175 mi apart. How far apart are they on the map?
    6·1 answer
  • Find the surface area &amp; volume for the prism shown?
    14·1 answer
  • If Mark gets a job that earns $10 an hour, and he works 40 hours per week for a year, what will his yearly income be? Question 5
    6·2 answers
  • 2. The table shows a function. x 0 1 2 3 5 13 21 29 37 45 53 (a) Is the function linear, exponential, or neither? (b) What is th
    6·1 answer
  • use each of the digits 5 4 3 2 1 exactly once to create two different five digit numbers. Write each number on the line and comp
    9·1 answer
  • Question 2
    8·1 answer
  • I need help with this
    9·2 answers
  • Solve the inequality x^3+4x&gt;5x^2 please show steps and interval notation. thank you.​
    9·1 answer
  • PLEASE ANSWER!
    7·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!