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
insens350 [35]
3 years ago
7

Solve 4x−5=7+4y for y.

Mathematics
2 answers:
drek231 [11]3 years ago
6 0

4x−5=7+4y

subtract 7 from both side

4x - 5 -7 = 4y

4x -12 = 4y

divide by 4

4x/4 -12/4 = 4y/4

x-3=y

garri49 [273]3 years ago
5 0

Answer:

y = x - 3

Step-by-step explanation:

Given equation,

4x - 5 = 7 + 4y

For finding the equation for y,

We need to isolate y in the left side of the equation,

Now,

Add 5 on the both sides of the above equation,

4x = 7 + 4y + 5

Subtract 4y on the both sides,

4x - 4y = 12

Subtract 4x on both sides,

-4y = 12 - 4x

Divide both sides by -4,

y=x-3

You might be interested in
Oliver drove the first 90 miles of his journey in 1.5 hours and the remaining 120 miles in 3 hours. What was the total average s
podryga [215]

90+120 miles/1.5+3 hours = 210 miles/4.5 hours = 46.67

7 0
2 years ago
Read 2 more answers
PLS HELP! WILL GIVE BRAINLIST!!!!
neonofarm [45]

Answer:

It is a trinomal because there is 3 terms

It is a quadratic because the highest degree is x^2

All in all, It is a Quadratic Trinomal

Step-by-step explanation:

7 0
2 years ago
Which of the following is NOT a reason fitness testing is useful in schools?
EastWind [94]
The most relevant answer is B
6 0
2 years ago
Help<br><br><br><br><br><br>What should be added to –7mn+2m2+3n2<br><br>to obtain 5m2+2mn-9n2​
aalyn [17]

The polynomial to be added to –7mn + 2m² + 3n² to obtain 5m² + 2mn - 9n² is: 3m² - 11n² + 9mn.

<h3>Addition of Polynomials</h3>

Like terms should be combined together when adding polynomials.

Let x represent the polynomial expression that would be added to –7mn + 2m² + 3n² to obtain 5m² + 2mn - 9n².

Therefore:

–7mn + 2m² + 3n² + x = 5m² + 2mn - 9n².

x = 5m² + 2mn - 9n² - (-7mn + 2m² + 3n²)

x = 5m² + 2mn - 9n² + 7mn - 2m² - 3n²

Combine like terms together.

x = 3m² - 11n² + 9mn

Therefore, the polynomial to be added to –7mn + 2m² + 3n² to obtain 5m² + 2mn - 9n² is: 3m² - 11n² + 9mn.

Learn more about polynomial on:

brainly.com/question/24662212

6 0
2 years ago
josh is 6 years older than 4 times Kim's age. The sum of their ages is less than 31. what is the oldest Kim could be? show all y
Mice21 [21]

Answer:

4 years old.

Step-by-step explanation:

Lets say that Josh's age is j and Kim's age is k. As Josh is 6 years older than 4 times Kim's age, we can write this as an equation:

j = 4k + 6

This is, John's age is equal to four times Kim's plus 6 years.

We then know that, when summed their ages is less than 31, so:

k + j < 31

Replace John's age by our first equation:

k + 4k + 6 < 31

5k + 6 < 31

Subtract 6 in both sides:

5k + 6 - 6 < 31 - 6

5k < 25

Dividing both sides by 5:

5k/5 < 25/5

k < 5

So, Kim's age MUST be less than 5.

If we talk about discrete values, this is 1, 2, 3, 4, 5, 6...., we will say than the oldest Kim could be is 4. If Kim is 5 years old, the sum of ages is 31 and we need it ti be LESS than 31. (we are not considering fractional numbers as 4.5 years old).

So, Kim can be, at maximum, 4 years old.

7 0
3 years ago
Other questions:
  • Solve for 2:<br> 8x - 41°<br> 4x + 35°
    13·1 answer
  • A bathtub can hold up to 110 gallons of water. The bathtub now contains 78
    11·2 answers
  • In 30 seconds, 2-year-old Janay's heart beats 36 times.
    10·2 answers
  • A project is graded on a scale of 1 to 5. If the random variable, X, is the project grade, what is the mean of the probability d
    12·2 answers
  • yes was walking along the road at 5 mph and was 17 miles away from his destination. no was walking at 7 mph but was 22 miles awa
    12·1 answer
  • Does someone know how to solve this problem?
    6·1 answer
  • Please refer to the attached image for the question/problem.
    6·1 answer
  • A baseball player had 4 hits in 8 games. At this rate, how many hits will the baseball player have in the next 28 games?
    13·2 answers
  • Can someone solve what is n/n^3
    11·1 answer
  • Y
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!