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
Effectus [21]
3 years ago
11

Solve for x. 8 + x = -4

Mathematics
2 answers:
Verizon [17]3 years ago
7 0

Answer:

x=-12

Step-by-step explanation:

because 8-12 geta you -4

Lady_Fox [76]3 years ago
3 0

Answer: X=  -4.8

Step-by-step explanation:Simplifying

0.8 + x = -4

Solving

0.8 + x = -4

Solving for variable 'x'.

Move all terms containing x to the left, all other terms to the right.

Add '-0.8' to each side of the equation.

0.8 + -0.8 + x = -4 + -0.8

Combine like terms: 0.8 + -0.8 = 0

0 + x = -4 + -0.8

x = -4 + -0.8

Combine like terms: -4 + -0.8 = -4.8

x = -4.8

Simplifying

x = -4.8

You might be interested in
Which value of x makes x-3/4 +2/3= 17/12 a true statement
NeTakaya

Answer:

34/24

Step-by-step explanation:

x-3/4+2/3=17/12

x-17/12=17/12

X=17/12+17/12

X=34/24

5 0
3 years ago
The length of a rectangle is 5 more than the width. Find the length and width of a rectangle if the area of the rectangle is 36
harkovskaia [24]

Answer:

width = 4 in

length = 9 in

Step-by-step explanation:

To solve this problem, write an expression for the length and use the area of a rectangle formula.

The formula for area of a triangle is A = lw

"A" is the area.

"l" is the length.

"w" is the width.

"The length of a rectangle is 5 more than the width". It is represented in an expression:

l = w + 5     The width plus 5 is the length.

We also know the area is 36 in². Using information we know, replace variables in the formula for area of a rectangle.

Substitute l = w + 5 and A = 36

A = lw

36 = (w + 5)w     Expand by multiplying w by the terms in the brackets.

36 = w² + 5w      Since the equation is quadratic, make it equate to 0.

36 - 36 = w² + 5w - 36   Subtract 36 from both sides

0 = w² + 5w - 36      Factor this. Use group factoring, which is when you replace the middle term (5w) with two terms that add to make 5w, and multiply to get the last term (-36).

0 = w² + 9w - 4w - 36      9w times -4w is -36. They also add to get 5w.

0 = (w² + 9w) + (-4w - 36)  Group the factors

0 = w(w + 9) + -4(w + 9)   Take out the common factor in each group.

0 = w(w + 9) + -4(w + 9)   Take out the new common factor binomial w+9

0 = (w + 9) (w - 4)    Fully factored equation.

w + 9 = 0       w - 4 = 0    Set each binomial to equal 0.

     w = -9            w = 4   Chose what makes sense to be the width.

The width cannot be a negative number, so the width is 4.

Since we know the width, we can find the length because the length is 5 more than the width.

l = w + 5

l = 4 + 5

l = 9      Length of the rectangle

Don't forget to include the units, inches.

Therefore the length is 9 inches and the width is 4 inches.

8 0
3 years ago
Trying to find the missing segment to the triangle in the attached image.
Inga [223]

Answer:

44 units length

Step-by-step explanation:

The side splitter theorem states that if a line is parallel to a side of a triangle and the line intersects the other two sides, then this line divides those two sides proportionally. Therefore:

20/10 = x/22

20/10*22 = x

44 = x

3 0
3 years ago
Whats the answer? <br> and how did I get my answer?
Kamila [148]

Answer:

40°

Step-by-step explanation:

Angle 1 and Angle 2 are corresponding angles.

Corresponding angles are congruent, so 3x + 4 = 5x - 20

Solving 3x + 4 = 5x - 20

3x = 5x - 24

2x = 24

x = 12

Substitute angle 1

3x + 4 = 36 + 4 = 40

7 0
2 years ago
If you answer my question can you please tell me how to do it step by step.​
hichkok12 [17]

Answer:

Depends

Step-by-step explanation:

It depends because I don't know if I'm strong on the material you're asking about.

5 0
3 years ago
Other questions:
  • 1. If f(x)=10- xạ, then which of the following is the value of f (-2)?
    7·1 answer
  • The length of a rectangle is four times it's width and has an area of 1024cm squared. Work out the width of the rectangle
    11·1 answer
  • A diver dives from a 10m springboard. the equation f(t) = -4.9t² + 4t + 10 models her height above the pool at time t. When will
    6·1 answer
  • Help Please
    15·1 answer
  • (a + 1)(a + 8) = 0<br> How to solve
    12·2 answers
  • 14 people share 6 sandwiches how much each?
    12·2 answers
  • Emily asked the players on her volleyball team their height in inches and listed the results below. What is the range of the dat
    6·1 answer
  • 3 times a number is 54 less than the square of that number. Find the positive solution.
    9·1 answer
  • I NEED HELP WITH THIS
    15·2 answers
  • Please help!!
    8·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!