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
pentagon [3]
2 years ago
10

Cal is measuring temperature changes in four substances over different time periods as part of a school project. Which data show

a proportional relationship?

Mathematics
1 answer:
djyliett [7]2 years ago
3 0

Answer:

C) The third table. K= 5

C)\frac{10}{2}=\frac{15}{3}=\frac{25}{5}=\frac{40}{8}=k= 5

Step-by-step explanation:

1) Below there are the missing data:

A proportional relationship through a constant k. It is obtained when we divide:

k=\frac{y}{x}

2)In this case, when we divide the temperature (T) by the time (h).

k=\frac{T}{h}

3)So, examining the table below we are searching for a ratio k common to all measures (temperatures over hour).

A) \frac{12}{3}\neq\frac{25}{5}\neq\frac{36}{6}\neq\frac{81}{9}\\B) \frac{22.5}{3}\neq\frac{30}{4}\neq\frac{52.5}{7}\neq\frac{67.5}{8}\\C)\frac{10}{2}=\frac{15}{3}=\frac{25}{5}=\frac{40}{8}=k= 5\\D)\frac{8.5}{2}\neq\frac{22.5}{5}\neq\frac{28.5}{7}\neq\frac{36}{8}

You might be interested in
A submarine submerges from the surface of the sea at the rate of 10 m/min. How long will it take to reach 300 m below the sea le
Pavlova-9 [17]

Answer:

answer is 300m/30min

Step-by-step explanation:

300\10=30

5 0
2 years ago
What do 110°, 250°, and -470° angles have in common?
Nadusha1986 [10]
They are all larger than 90 degrees, and in a triangle they would all be obtuse angles.
4 0
3 years ago
Read 2 more answers
Work out the surface area of this cylinder.<br> Radius-7 cm<br> Height-12 cm
RideAnS [48]

Answer:

226pi

Step-by-step explanation:

2 * pi * 7 *(7+12)

4 0
2 years ago
Read 2 more answers
Find the measure of Angle 1.
BartSMP [9]

Answer:

85°

Step-by-step explanation:

  • Angles in a triangle add up to 180°.
  • 40° + 55° = 95° - This means that there is already 95° in the triangle
  • To find the missing angle (angle 1) we need to do 180 - 95 which is 85°.

Hope this helps!

3 0
2 years ago
You are creating a set of three numbers that have a GCF of 9. You have 27 and 54 for two of the numbers. A. What is the GCF of 2
melamori03 [73]

Answer:

A. GCF of both is 27

B. By adding 9 and 18 to the set, the GCF of the four numbers become 9

Step-by-step explanation:

A. The GCF of 27 and 54 is 27

GCF represents greatest common factor. It means the highest number which is both a factor of 27 and also a factor of 54. The highest number in this case is 27.

The factors of 27 are ;

1, 3 , 9 , 27

for 54

1,2,3,6,9,18,27 and 54

So we can clearly see that the highest factor in both case is 27

B. Now , we want to add two numbers that will make the GCF to be 9

What about adding 9 and 18?

Let’s have a look;

using the multiples of each;

9 - 1, 3 and 9

18 - 1, 2, 3 , 6 , 9 and 18

27- 1, 3 , 9 and 27

54- 1, 2, 3 , 6, 9, 18, 27 and 54

We can clearly see here that the highest factor that takes all four numbers into consideration is the number 9

3 0
3 years ago
Other questions:
  • Solve for g. 9+3.5g=11-0.5g
    5·2 answers
  • Decimal formal 1.96 becomes what expressed as a percent
    8·1 answer
  • How do you write 12/75 as a decimal
    7·2 answers
  • Please help me with this problem
    11·1 answer
  • 9. What value of m makes this equation true?<br> 1/2 (8m - 18) = 31
    15·1 answer
  • Which of the following expressions results in 0 when evaluated at x = 4?
    14·2 answers
  • If a = 4+3√5 and b = 1 then what will be the value of 2 + 2 ?​
    13·1 answer
  • The clothing store marked down all their shirts by 30%. If a shirt originally cost $24, what is the sale price of the shirt?
    6·1 answer
  • PLLLZZZ HELP and explain how you got it
    9·1 answer
  • a school has 415 third grade and 338 second graders how many more third graders are there than second graders?
    10·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!