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
Makovka662 [10]
3 years ago
14

Exit Ticket

Mathematics
1 answer:
Arisa [49]3 years ago
8 0

The complete question is:

Oscar and Maria each wrote an equation that they felt represented the proportional relationship between distance in kilometers and distance in miles. One entry in the table paired 152 km with 95 miles. If represents the number of kilometers and represents the number of miles, who wrote the correct equation that would relate kilometers to miles? Explain why.

  • Oscar wrote the equation = 1.6, and he said that the unit rate 1.6 / 1

represents kilometers per mile.

  • Maria wrote the equation = 0.625 as her equation, and she said that 0.625 represents kilometers per mile.

Answer:

  • <em><u>Oscar wrote the correct equation that would relate kilometers to miles.</u></em>

Explanation:

<u>1. Table</u>

km         miles

152          95

             

<u />

<u>2.  Set the proportion with / and solve for k</u>

  • / = 152 km / 95 miles
  • / = 1.6 km / 1 miles
  • = 1.6 , where  1.6 / 1 represents kilometers per mile.

So, Oscar is right.

<u>3. Solve the proportion for </u>

  • / = 152 km / 95 miles
  • / = 95 miles / 152 km
  • = 0.625 , where 0.625 represents miles per kilometer

So, Maria is wrong.

You might be interested in
Which of the following hypotheses/theories suggests that investors regard a change in dividend payments as a signal that the fir
lutik1710 [3]

Answer:

C

Step-by-step explanation:

Dividend policy (hypothesis) of firms as stated by Musa (2009) is a cultural phenomenon that changes continuously according to environment and time, hence it is necessary to continuously modify dividend behavioural models to capture those factors that are peculiar to a particular period and environment, as well as changes in tax.

Hope this helps

7 0
3 years ago
5(-3x - 2) - (x - 3) = -4 (4x +5) + 13
S_A_V [24]
Start off by distributing the numbers into the parentheses:

5(-3x - 2) - (x - 3) = -4(4x + 5) + 13
-15x - 10 - (x - 3) = -16x - 20 + 13

(Note: It's super important to be careful when opening up negative parentheses! -(x-3) is not just - x - 3, it is actually -x + 3 since the negative is distributed in every number!)

-15x - 10 - x + 3 = -16x - 20 + 13
-16x - 7 = -16x - 7
-16x = -16x
0 = 0

There is an infinite number of solutions in this equation.

(When you get 0=0 when solving for a variable, that means that said variable will have infinite solutions, that is, any number plugged into the equation will work)
4 0
3 years ago
Read 2 more answers
1 <br> 2<br> 3<br> 66<br> 84<br> 3<br> 43<br> I need help
Alex787 [66]

Answer:

m<1 = 30 degrees

m<2= 41 degrees

m<3= 96 degrees

Step-by-step explanation:

Hope this helps :)

Pls give brainliest, I really need it

- massmaster34

6 0
3 years ago
A triangle has side lengths of 9 in, 13 in, and 20 in. What is the measurement of this triangle’s largest angle?
zvonat [6]
1. Given any triangle ABC with sides BC=a, AC=b and AB=c, the following are true :

      i) the larger the angle, the larger the side in front of it, and the other way around as well. (Sine Law) Let a=20 in, then the largest angle is angle A.

       ii) Given the measures of the sides of a triangle. Then the cosines of any of the angles can be found by the following formula:

       a^{2}=b ^{2}+c ^{2}-2bc(cosA)

2. 

20^{2}=9 ^{2}+13 ^{2}-2*9*13(cosA)&#10;&#10;400=81+169-234(cosA)   150=-234(cosA)&#10;&#10;cosA=150/-234= -0.641

3. m(A) = Arccos(-0.641)≈130°, 

4. Remark: We calculate Arccos with a scientific calculator or computer software unless it is one of the well known values, ex Arccos(0.5)=60°, Arccos(-0.5)=120° etc
4 0
3 years ago
Read 2 more answers
What is the constant of proportionality in the table shown below?
nikdorinn [45]

Answer:

3/4.

Step-by-step explanation:

I just know. I studied constant of proportionality for a loooong time! if its wrong tell me.

4 0
3 years ago
Other questions:
  • Solve x3 = 125 over 27
    12·2 answers
  • 20/48 written in simplest form
    11·1 answer
  • I NEED HELP WITH MATH
    8·1 answer
  • Quinn is playing video games at a virtual reality game room. The game room charges 20 dollars for every 30 minutes of play time.
    7·2 answers
  • If the sum of $1! + 2! + 3! + \cdots + 49! + 50!$ is divided by $15$, what is the remainder?
    6·1 answer
  • HELP ASAP PLEASE!!!!!!!!!!!!!
    13·1 answer
  • 67 hundredths in numbers (decimals)
    9·1 answer
  • PLEASE HELP ASAP!!!!!!!
    15·1 answer
  • A windshield wiper is 50 cm long. In one sweep it turns through an angle of 115°. Calculate the distance (length) it covers in o
    10·1 answer
  • Anybody know how to do these? i need help pls contact me
    12·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!