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
Alenkasestr [34]
3 years ago
10

What is 3(x+4)-1=7 explain this to me please

Mathematics
2 answers:
Reika [66]3 years ago
8 0
Answer:

x = - 4/3

Step-by-step explanation:

3(x + 4) - 1 = 7

3x + 12 - 1 = 7

3x + 12 = 8

3x = -4

x = -4/3
earnstyle [38]3 years ago
5 0
1. you use distributive property
3x+12-1=7

2.combine like terms
3x+11=7

3. isolate variable (subtract 11 from both sides)
3x=-4

4. cancel out variable by dividing both sides by 3
3x/3=x -4/3=-1.333…

x=-about 1.333
You might be interested in
Consider the two groups listed below. Which statement correctly describes the relationship of the two sets if they were mapped?
-Dominant- [34]

Answer:

i do not know

Step-by-step explanation:

5 0
3 years ago
ind the length of the longest side of the rectangle whose vertices are given. A(2, 1), B(5, 4), C(0, 3), D(3, 6) 2 rad2 3 rad2 r
trasher [3.6K]

Distance between A and B  

= Distance between C and D  

= sqrt((4 - 1)^2 + (5 - 2)^2)  

= sqrt(3^2 + 3^2)  

= sqrt(2 * 3^2)  

= sqrt(3^2) * sqrt(2)  

= 3sqrt(2)  

Distance between B and C  

= Distance between A and D  

= sqrt((4 - 3)^2 + (5 - 0)^2)  

= sqrt(1^2 + 5^2)  

= sqrt(26)  

Since sqrt(26) is more than 3sqrt(2), the length must be sqrt(26).

Hope this helps you.

5 0
2 years ago
Three consecutive integers add up to -36. What are the integers?​
nasty-shy [4]

Answer:

We know our answer is correct because 11 + 12 + 13 equals 36 as displayed Below

Explanation

3X + 3 = 36 3X + 3 - 3 = 36 - 3 3X = 33 3X/3 = 33/3 X = 11 Which means that the first number is 11, the second number is 11 + 1 and the third number is 11 + 2. Therefore, three consecutive integers that add up to 36 are 11, 12, and 13. 11 + 12 + 13 = 36 We know our answer is correct because 11 + 12 + 13 equals 36 as displayed above. Therefore, three consecutive integers that add up to 36 are 11, 12, and 13.  11 + 12 + 13 = 36

Plz mark brainliest if helps Also hope helps:)

4 0
2 years ago
Given the following graph of a system of inequalities, the point (3, 2) _____________.
uysha [10]
That point does not satisfy either inequality. 

You can tell it does not satisfy the first portion, due to it being under the shaded line. Secondly, the dotted line goes through it, but that fact that it is dotted makes it not included. 
5 0
3 years ago
Problem 9
lapo4ka [179]

Answer:

3:36PM

Step-by-step explanation:

Leon starts at 12PM with 12 gallons of gas, and after 2 hours he has used 5 gallons of gas. This means that every 2 hours he uses 5 gallons of gas.

Next we will find at what point Leon will stop to get gas. Since he will stop when the tank is at \frac{1}{4} capacity, we can use the equation:

\frac{1}{4} * 12 = \boxed{3}

This shows \frac{1}{4} of his tank's capacity (12) is equal to 3 gallons. This means he will stop for gas when 3 gallons are remaining.

Now we need to find how many gallons of gas he uses, but as a unit rate. (This will allow us to find what time Leon will stop to get gas.) To find the unit rate, we will need to find how many gallons of gas he uses per hour.

\frac{\mbox{5 gallons}}{\mbox{2 hours}} = \frac{\mbox{2.5 gallons}}{\mbox{1 hours}}

This is a simple proportion, and now we know he uses 2.5 gallons of gas per hour.

Now we can how many hours of gas Leon has left.

He has 7 gallons of gas left at 2PM, so we can divide to find how many hours left of gas he has.

\frac{7-3}{2.5} = 1.6

The 7-3 is because Leon doesn't stop when his tank is empty, he stops 3 gallons earlier. We are dividing by 2.5 because that is how much gas he uses per hour, meaning the result of this division (1.6) is how many hours he has left.

Now we can solve for what time Leon will stop to get gas.

12PM + 2 hours of driving + the remaining 1.6 hours = 3:36PM

(1.6 hours is equal to 1 hour and 36 minutes)

Therefore, Leon will stop for gas at 3:36PM

8 0
2 years ago
Other questions:
  • Which products result in a difference of squares or a perfect square trinomial? Check all that apply.
    9·2 answers
  • Which number sentences show ways to solve the problem?
    12·1 answer
  • Solve the equation and check the solution<br>4-2--1​
    15·1 answer
  • How do you divide mixed fractions
    8·2 answers
  • A park ranger standing in a 146-foot lookout tower sees the beginning of a forest fire. she measures the angle of depression fro
    8·1 answer
  • Find the total surface of this triangular prism<br> please help me I forgot how to do this
    14·2 answers
  • 6a3-5b2+2c2-3a2bc if a=5 b=2c=-1
    13·1 answer
  • Which of the following is a true statement about the angles in the
    8·1 answer
  • Find The Angle (See Image)
    14·1 answer
  • Pls help me with this…
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!