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
Umnica [9.8K]
3 years ago
12

FIRST TO ANSWER GETS BRAINLIEST

Mathematics
1 answer:
iVinArrow [24]3 years ago
5 0

Step-by-step explanation:

3x - y = 74

4y = x

Replace x in the first expression by 4y

3x - y = 74 ➡ 3(4y) - y = 74

12y - y = 74

11y = 74

y = 74/11 we can use this to find x

4y = x

4 × 74/11 = x

296/11 = x

You might be interested in
Suppose f and g are continuous functions such that g(2) = 6 and lim x → 2 [3f(x) + f(x)g(x)] = 36. find f(2).
True [87]

Answer: f(2) = 4

Step-by-step explanation:

F(x) and g(x) are said to be continuous functions

Lim x=2 [3f(x) + f(x)g(x)] = 36

g(x) = 2

Limit x=2

[3f(2) + f(2)g(2)] = 36

[3f(2) + f(2) . 6] = 36

[3f(2) + 6f(2)] = 36

9f(2) = 36

Divide both sides by 9

f(2) = 36/9

f(2) = 4

7 0
3 years ago
A solution is heated from 0°C to 100°C. Between 0°C and 50°C, the rate of temperature increase is 1.5°C/min. Between 50°C and 10
muminat

Answer:

0.6 °C/min

Step-by-step explanation:

The relationship between rates and movement is ...

time = distance/speed

Here, the "distance" is measured in °C, and the "speed" is the rate of change of temperature.

For the first half of the heating, the time required is ...

(50°C -0°C)/(1.5 °C/min) = 50/(3/2) min = 100/3 min

For the second half of the heating, the time required is ...

(100°C -50°C)/(4/10 °C/min) = 50/(4/10) = 125 min

Then the total time is ...

((100/3) +125) min = (475/3) min

And the average rate of temperature increase is ...

total temperature change / total time

= (100°C -0°C)/(475/3 min) = 300/475 °C/min = 12/19 °C/min ≈ 0.6 °C/min

4 0
3 years ago
What is the answer to -56/6<br>​
mafiozo [28]

Answer: -9 1/3 or -9.3333333

Step-by-step explanation: You would just have to divide those two numbers and then add the negative to your answer.

5 0
3 years ago
What is the surface area of the right rectangular prism with a square base, as
Jlenok [28]
342cm because the 4 sides equal 180cm and the top and base equal 162.
7 0
3 years ago
A motorboat averages 20 miles per hour (mph) in still water. It takes the boat the same amount of time to travel 3 miles with th
bearhunter [10]

Answer:

4 mph

Step-by-step explanation:

Let :

Boat speed = 20 mph

speed of current = x mph

Distance against current = 2 miles

Distance with current = 3 miles

speed against current will be ; 20 - x

speed with current will be ; 20 + x

Time =distance / speed against time against = time with current

Solving Mathematically ;

2/(20-x )=3/(20 +x)

2(20+x )= 3( 20-x )

40+2x = 60-3x

3x +2x=20

5x=20

x = 20 / 5

x = 4 mph

Speed of current = 4 mph

8 0
3 years ago
Other questions:
  • PLEASE HELP ILL GIVE BRAINLIEST
    6·1 answer
  • Out of 54 randomly chosen football players in a football league, 11 said they were going to attend camp there are 810 players in
    7·2 answers
  • What is the first quartile of the data set represented by the box plot shown below?
    13·1 answer
  • You have c pounds of cashews and 2.7 pounds of peanuts you have 6 pounds of nuts altogether solv the equation c+2.7 =6 to find h
    9·1 answer
  • Which is the equation of Line D?
    8·1 answer
  • 23 is 85% of what number?
    10·1 answer
  • 5. Vocabulary A _________<br> is a set of equations that have the same<br> variables.
    8·2 answers
  • Maya can run 18 miles in 3 hours, and she can bike 18 miles in 2 hours.
    5·1 answer
  • A 32 foot ladder is placed on the ground 10 ft from the base of a house. How far up the house will the ladder reach?
    6·1 answer
  • 13 × 6 + 11
    13·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!