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
Degger [83]
3 years ago
5

A small metal bar whose temperature is 30 C is dropped into a container of 75 C

Mathematics
1 answer:
Mariulka [41]3 years ago
4 0

It would take about 40 seconds for the temperature to reach 70°C and 44 second to reach 74°C.

<h3>Linear equation</h3>

A linear equation is in the form:

y = mx + b

where y, x are variables, m is the slope of the line and b is the y intercept.

Let y represent the temperature of the metal bar after x seconds, hence:

Since the metal bar has an initial temperature of 30°C, hence:

b = 30, also m = 1°C (increase), The equation becomes:

y = 1(x) + 30 = x + 30

To reach 70°C:

70 = x + 30

x = 40 seconds

To reach 74°C:

74 = x + 30

x = 44 seconds

It would take about 40 seconds for the temperature to reach 70°C and 44 second to reach 74°C.

Find out more on Linear equation at: brainly.com/question/14323743

You might be interested in
In a classroom of 28 students: 19 of the students have brown eyes 13 of the students wear glasses 7 of the students do not have
V125BC [204]

Total students = 28

Students with brown eyes = 19

students wear glasses = 13

Not brown eyes or no glasses = 7


Not brown eyes = 28 - 19 = 9

Not wearing glasses = 28 - 13 = 15

Not brown eyes and wearing glasses = 15 - 9 = 6

Brown eyes and wearing glasses = 13 - 6 = 7 <==== answer

7 0
3 years ago
Read 2 more answers
How do I solve this equation and check the solutions?
Zielflug [23.3K]

Answer:

44

Step-by-step explanation:

1. 8x8=64

2.64-20=44

Answer; 44

5 0
2 years ago
Read 2 more answers
Four students were scheduled to give book reports in 1 hour. After the first report, 2/3 hour remained. The next two reports too
Novosadov [1.4K]

Answer:1/4 hour remaining

Step-by-step explanation:

Presenter 1 - 1/3 hour

Presenter 2 - 1/6 hour

Presenter 3 - 1/4 hour

Convert to least common denominator of 12

4/12 + 2/12 + 3/12 = 9/12

12/12 - 9/12 = 3/12

Reduce 3/12 to get 1/4 hour remaining

3 0
3 years ago
Solve for b 15=3b<br> Please I need help
IgorLugansk [536]
15=3b
15/3 = 3b/b
5= b

Isolate the variable by diving 3 on both sides
6 0
3 years ago
The number s is one third the number t. Which number sentence shows the relationship between s and t?
Mashcka [7]
S= 1/3t (T is one third of s)
8 0
3 years ago
Other questions:
  • Hands of a clock suggest an angle whose measure is continually changing. How many degrees does a minute hand move through during
    11·1 answer
  • Due to an ice storm, the price of apples increased from $0.69 a pound to $1.59 a pound from one year to the next. What is the pe
    7·1 answer
  • A jar of jelly that weighs 4.25 ounces costs $2.89. What is the cost of one ounce of jelly?
    5·1 answer
  • What is 300,000x10^33
    9·1 answer
  • Solve (t-5) = 2 where t is a real number.<br> Simplify your answer as much as possible.
    9·1 answer
  • HEY HELP WAYYY OVERDUE NEED IN 10 MINS PLEASE ANSWER CHOICES ARE : 29.76 91.5 180 188.93 223.07
    6·2 answers
  • Can someone please help
    12·2 answers
  • Work out the size of angle X
    8·1 answer
  • ( -8z)² find the answer
    5·1 answer
  • Whats 20x165-45+3 ÷7=
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!