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
olga_2 [115]
3 years ago
6

PLEASE HELP ME SOLVE FOR X

Mathematics
1 answer:
Kitty [74]3 years ago
5 0

Answer:

7. x = 10

8. x = 13

9. x = 17

10. x = 5

11. x = 9

12. x = 11

Step-by-step explanation:

Explanation for Number 7.

The exterior angle is always equl to the sum of the two opposite interior angles.

The two opposite interior angles: 62 and (7x + 14)

The exterior angle: (15x - 4)

So you would set it up like _____ = ______ to solve for x

62 + (7x +14) = 15x - 4

62 + 7x + 14 = 15x - 4

Then move the terms

76 + 7x = 15x - 4

Collect the like terms and Calculate

7x - 15x = -4 - 76

Divide both Sides

-8x = -80

/8       /8

-x = -10

/-1    /-1

x = 10

Hope this helps ^^

You might be interested in
If x=-4 and y=6, then xy-3=
Anna11 [10]

Answer:

-12

Step-by-step explanation:

We start with the equation: xy-3x

Substitute the variables: (-4)(6)-3(-4)

Solve using order of operations (start with multiplication): (-24)-(-12)

And then addition/subtration: (-24)-(-12)=-12

3 0
3 years ago
Each flower has a specific price. One tulip, one daisy, and 2 mums cost $4.20. On tulip, two daisies and one mum cost $3.80. Two
sineoko [7]

Answer:

The answer to your question is $5.60

Step-by-step explanation:

    1 tulip + 1 daisy + 2 mums = $4.20           (1)

    1 tulip + 2 daisies + 1 mum = $ 3.80         (2)

    2 tulips + 2 mums = $4.80                        (3)

    1 tulip + 3 daisies + 2 mums = ?

tulip = t      daisy = d      mum = m

Process

1.- Find the price of each flower using system of equations

    Solve equation 3 for tulip

     2t = 4.80 - 2 m     divide by 2                            (4)

     t = 2.40 - 1m

2.- Substitute equation 4 in equation 1 and 2

    (2.4 - 1m) + 1 d + 2 m = 4.2

    (2.4 - 1m) + 2d + 1 m = 3.8

3.- Simplify and solve for each flower

     2.4 - 1m + 1d + 2m = 4.2

      1d + 1m = 4.2 - 2.4

      1d + 1m = 1.8                   Equation (5)

     2.4 - 1m + 2d + 1m = 3.8

     2d = 3.8 - 2.4

     2d = 1.4

     d = 1.4/2

     1d = 0.7

4.-  Substitue d in equation 5

     1(0.7) + 1m = 1.8

     0.7 + 1m = 1.8

     1m = 1.8 - 0.7

      1m = 1.1

5.- Subtitute m in equation 4

     1t = 2.40 - 1(1.1)

     1t = 2.40 - 1.1

      1t = 1.3

6.- Result

     1 tulip + 3 daisies + 2 mums cost = 1.3 + 3(0.7) + 2(1.1)

                                                            = 1.3 + 2.1 + 2.2

                                                            = $5.6

8 0
3 years ago
A frisbee landed on the roof of the house. The place where you have decided to place the ladder is right over the AC unit, forci
artcher [175]
A^2=B^2+c^2

8^2+15^2=X^2

so 289=X^2
the square root or 289 is 17, so the answer is 17ft
7 0
3 years ago
What is the first step when solving the equation below for x?
arsen [322]

Step-by-step explanation:

4x + 0.2=0.9

transposing 0.2 to RHS

=> 4x =0.9-0.2 => 4x=0.7

transposing 4 to RHS

=> x=0.7÷4

=> x=0.175

if it helps plzz mark it as brainliest

5 0
3 years ago
Read 2 more answers
If the following system of equations was written as a matrix equation in the form AX=C , and matrix A was expressed in the form
cluponka [151]
Its -5

because a=4, b=5, c=2, d=-6
8 0
3 years ago
Read 2 more answers
Other questions:
  • PLEASE HELP FAST!!!! River raft rental are $7 per hour plus a deposit fee of $25 per person. Wright a expression for the total c
    5·1 answer
  • For question number one d... is the function increasing or decreasing?
    6·1 answer
  • A river is flowing at the speed of 2 miles per hour. A kayaker moves 528 feet upstream in 20 minutes. At this rate, how fast wou
    12·1 answer
  • A single adult lion at a zoo needs m pounds of meat daily. the zookeeper uses the expression 5m + 10 to find the total amount of
    6·1 answer
  • Solve the differential equation: dy/dx = 4y2x1/3
    15·1 answer
  • Use this image to classify each pair of lines.
    9·2 answers
  • Eighteen cans of dog food were divided amount 12 dogs. Two dogs did not eat. Choose the expression that shows how many cans of f
    10·1 answer
  • Wave Corporation began the current year with a retained earnings balance of $25,000. During the year, the company corrected an e
    15·1 answer
  • Help ight now 88 POINTS!
    11·1 answer
  • A heron is perched in a tree 50 feet above sea level. Directly below the heron, a pelican is flying 17 feet above sea level. Dir
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!