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
makvit [3.9K]
3 years ago
12

Solve: x + 1.5= 5.7 How do I solve this?

Mathematics
2 answers:
slava [35]3 years ago
6 0

Answer: x = 4.2

Explanation: If we're asked to solve for <em>x</em> in the equation x + 1.5 = 7.5, what we're really being asked to do is get <em>x</em> by itself on one side of the equation.

So if we take a look at the left side of our equation, notice that 1.5 is being added to <em>x</em> so in order to get <em>x</em> by itself, we must subtract 1.5 from the left side of the equation. Now remember your first rule of solving equations. If we subtract 1.5 from the left side of the equation, we must also subtract 1.5 from the right side of the equation.

So on the left side our +1.5 and -1.5 cancel out and we're simply left with <em>x</em>. On the right side of the equation,

5.7 - 1.5 simplifies to 4.2 so our answer is <em>x = 4.2</em>.

The nice thing about solving equations is that you can always check your answer by plugging it back in to the original equation.

So here, we're gonna plug a 4.2 back in for <em>x</em> in the original equation and we get (4.2) + 1.5 = 5.7.

Since 4.2 + 1.5 = 5.7 is a true statement, our answer checks and we know that it's right.

Mashutka [201]3 years ago
4 0

Answer:

4.2

Step-by-step explanation:

5.7-1.5=4.2

You might be interested in
Need help setting up this equation
LekaFEV [45]
5x = length
4x = width
324 = perimeter
formula: P = 2(length) + 2(width)

324 = 2(5x) + 2(4x)
324 = 10x + 8x
324 = 18x
18 = x
Substitute the value of x = 18
Length = 5x = 5(18) = 90meters
Width = 4x = 4(18) = 72meters
5 0
3 years ago
ANSWER THIS ASAP DONT SEND A FILE AT ALL !! I NEED THE ANSWER QUICK HELPP ONLY ANSKER IF YOY REALLY KNOW!!
andre [41]

Answer:

...

Step-by-step explanation:

(x+8)(y+3)

8 0
3 years ago
Read 2 more answers
Let ƒ(x) = x + 1 and g(x) = 5x. Evaluate the composition (ƒ ∘ g)(–1). Question 2 options: A) (ƒ ∘ g)(–1) = 6 B) (ƒ ∘ g)(–1) = –4
Papessa [141]

Answer:

answer B

Step-by-step explanation:

hello,

f(x)=x+1\\g(x)=5x \ \ so\\(fog)(-1)=f(g(-1))=f(-5)=-5+1=-4

so the winner is the answer B

hope this helps

5 0
3 years ago
What is the solution to the system of equations below? y = negative one-third x + 6 and x = –6
PSYCHO15rus [73]

Answer:2

26x + y = 23 → y = 23 – 6x.

7x + y = 25 → 7x + (23 – 6x) = 25 → x + 23 = 25 → x = 2

4 0
3 years ago
A certain organization recommends the use of passwords with the following​ format: vowel commavowel, consonant comma consonant c
zimovet [89]

The password format is = inpray93

vowel , consonant, consonant, consonant, vowel, consonant, number, number.

There are 21 consonants, 5 vowels and 10 number choices (0-9)

Since, there are 21 consonants and repetition is allowed so for 2nd, 3rd, 4th, and 6th positions 21 choices are available. For 1st and 5th positions, 5 choices  are available and for 7th and 8th position there are 10 choices (0 to 9).

Passwords are not case sensitive which means upper case and lower case letters are same.

So, the number of passwords can be =

5\times21\times21\times21\times5\times21\times10\times10

= 486202500

Part (b) question is not given. But it can be opposite to the first part i.e when the password letters are case sensitive.

This means all the letters are different.

So, number of passwords will be =

10\times42\times42\times42\times10\times42\times10\times10

= 31116960000

4 0
3 years ago
Other questions:
  • 6*5*2 use parantheses and multiplication properties , then find the product
    6·1 answer
  • What is twelve more than the quotient of 64 and 8?<br> (put in standard form)
    14·1 answer
  • How can u <br> Simplify negative 9 over 6 divided by 3 over negative 2. .
    14·1 answer
  • Work out 5.4 x 0.24
    8·2 answers
  • Please help, due today​
    5·2 answers
  • Write the slope-intercept form of the equation for
    11·1 answer
  • When should fixed and variable monthly budgeted expenses first be planned?
    8·1 answer
  • Point D(9,-8) is reflected to D'(9,8)
    8·1 answer
  • Rondel Wilson borrowed $2,000 to replace the furnace in his house. The promissory note he signed was for 3 months at 15.25% inte
    10·1 answer
  • In the first year of production
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!