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kolbaska11 [484]
3 years ago
7

Write an Equation and solve for x.

Mathematics
2 answers:
____ [38]3 years ago
8 0

Answer:

x=17

Step-by-step explanation:

(3x+1)+(4+2x)=90

3x+1+4+2x=90

5x+5=90

5x + 5 - 5 = 90 - 5

5x = 85

5x/5 = 85/5

x = 17

mrs_skeptik [129]3 years ago
5 0

Answer:

x = 17

Step-by-step explanation:

The angles 3x + 1 and 4 + 2x MUST total 90 degrees:

5x + 5 = 90 degrees

or:  5x = 85 degrees

therefore:  x = 17

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Stels [109]
Yea yea ma’am why :)
5 0
3 years ago
Solve for v.<br>2= 11 – 3v​
Nastasia [14]

Answer:

v= 3

Step-by-step explanation:

2-11= -9

-3v/ -9

= 3

8 0
3 years ago
What number does x stand for in this equation?
Alex777 [14]

Answer:

C. -3

General Formulas and Concepts:

<u>Pre-Algebra</u>

Order of Operations: BPEMDAS

  1. Brackets
  2. Parenthesis
  3. Exponents
  4. Multiplication
  5. Division
  6. Addition
  7. Subtraction
  • Left to Right  

Equality Properties

  • Multiplication Property of Equality
  • Division Property of Equality
  • Addition Property of Equality
  • Subtraction Property of Equality<u> </u>

Step-by-step explanation:

<u>Step 1: Define</u>

-7x + 6 = 27

<u>Step 2: Solve for </u><em><u>x</u></em>

  1. [Subtraction Property of Equality] Subtract 6 on both sides:                        -7x = 21
  2. [Division Property of Equality] Divide -7 on both sides:                                 x = -3
3 0
3 years ago
cuanto pagaríamos por un libro cuyo precio es de $25 si le aplicamos un descuento del 25% cuanto dinero ahorramos
kotegsom [21]

Tenemos precio de lista de $25 para el libro.

Si aplicamos un descuento del 25%, este descuento representa:

D=(\frac{25}{100})\cdot25=0.25\cdot25=6.25

Ahorramos $6.25.

El precio que pagamos el libro es $18.75.

P=L-D=25-6.25=18.75

4 0
1 year ago
1-) Emily and her friends went to the park. They saw 15 robins and 9 blue jays. How many birds did they see.? 24 birds.
m_a_m_a [10]
I decided to do a addition problem because based on the answer it couldn't be multiplication, subtraction, or division. Therefore, my problem would look like 15+9=24 birds in total.
8 0
3 years ago
Read 2 more answers
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