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
gizmo_the_mogwai [7]
2 years ago
7

HELPPHELPPPPP HELLPP PLEASEEE

Mathematics
1 answer:
Lilit [14]2 years ago
5 0

Answer:

The answers of all four questions are below.

Step-by-step explanation:

(5)4+2x=−2x+44

Step 1: Simplify both sides of the equation.

2x+4=−2x+44

Step 2: Add 2x to both sides.

2x+4+2x=−2x+44+2x

4x+4=44

Step 3: Subtract 4 from both sides.

4x+4−4=44−4

4x=40

Step 4: Divide both sides by 4.

4x/4=40/4

x=10

-----------------------------------------------------------------------------------------------------------------

(6)114−3x=194−11x

Step 1: Simplify both sides of the equation.

114−3x=194−11x

114+−3x=194+−11x

−3x+114=−11x+194

Step 2: Add 11x to both sides.

−3x+114+11x=−11x+194+11x

8x+114=194

Step 3: Subtract 114 from both sides.

8x+114−114=194−114

8x=80

Step 4: Divide both sides by 8.

8x/8 = 80/8

x=10

------------------------------------------------------------------------------------------------------

(7)4x-12=-2x+36

4x-12+12=-2x+36+12

4x=-2x+48

4x+2x=-2x+48+2x

6x=48

6x/6=48/6

x=8

-----------------------------------------------------------------------------------------------------------

(9)-3x+90=117-12x

-3x+90-90=117-12x-90

-3x=-12x+27

-3x+12x=-12x+27+12x

9x=27

9x/9=27/9

x=3

-------------------------------------------------------------------------------------------------------

Oh, and a tip if your having trouble with algebraic expressions I recommend  you use mathpapa and symbolab when I was learning expressions this really helped me.  Have a great day.

You might be interested in
The percent markup is ____​%
morpeh [17]

Answer:

the percent is almost 42.9

Step-by-step explanation:

4 0
2 years ago
Algebraic phrase the sum of 5 times a number and -8
Sindrei [870]
The sum of 5 times a number and -8:

5x - 8 = y
8 0
3 years ago
My Notes A street light is mounted at the top of a 15-ft-tall pole. A man 6 ft tall walks away from the pole with a speed of 4 f
Sergio [31]

Answer:

6.667 ft/s

Step-by-step explanation:

Given

Height of street light = 15ft

Height of man = 6ft

Speed away from pole = 4ft/s

Let x represents the distance between the man and the pole, and Let y represents the distance between the tip of the man's shadow to the pole.

This forms a similar triangle (see attachment below).

From similar triangles, we have

(y - x)/6 = y/15 ----- Solve equation

15(y - x) = 6 * y

15y - 15x = 6y ---- Collect Like Terms

15y - 6y = 15x

9y = 15x --- divide through by 9

y = 15x/9

y = 5x/3 ---- differentiate with respect to time, t

dy/dt = 5/3 dx/dt

dx/dt represents rate of change of distance per time = 4ft/s

while dy/dt represents rate of movement of his shadow tips

dy/dt = 5/3 * 4

dy/dt = 20/3 = 6.667 ft/s

4 0
3 years ago
Read 2 more answers
Help mehhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh
Vanyuwa [196]

Answer:

y = 65x

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
If the diagonals of a quadrilateral bisect the angles, is the quadrilateral always a parallelogram? Explain your answer.
Liula [17]
Yes. If the diagonals bisect the angles, the quadrilateral is always a parallelogram, specifically, a rhombus.


Consider quadrilateral ABCD. If diagonal AC bisects angles A and C, then ΔACB is congruent to ΔACD (ASA). Hence AB=AD and BC=CD (CPCTC).

Likewise, if diagonal BD bisects angles B and D, triangles BDA and BDC are congruent, thus AB=BC and AD=CD. (CPCTC again). Now, we have AB=BC=CD=AD, so the figure is a rhombus, hence a parallelogram.
6 0
2 years ago
Other questions:
  • How many plants x should she plant in each row so that her 25 plants end up in a square (i.e., x plants in each of x rows)? expr
    7·2 answers
  • What is the mode of 82 , 79 , 72 , 72 , 81 , 77 , 69
    12·2 answers
  • What polyhedron can be formed from a net diagram that has 2 congruent hexagons and 6 congruent rectangles?
    9·2 answers
  • a door frame is 80 inches tall and 36 inches wide, what is the length of diagonal of the door frame? round to the nearest 10th
    14·1 answer
  • 24 inches = ____ feet ?
    9·2 answers
  • Someone please please help me with those 2
    7·2 answers
  • Someone help fasttttt
    10·2 answers
  • Find the value of x. Give the answer in simplest radical form.<br><br> PLEASE HELP
    12·1 answer
  • How does the circulatory system work at the tissue level?<br> Please help!
    11·1 answer
  • A hot air balloon descends to the ground. The function a(t) = 210 – 15t can be used to describe the altitude of the balloon as i
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!