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
Kitty [74]
3 years ago
15

After a 20% price reduction, a cordless phone sold for $48. What was the phones price before the reduction?

Mathematics
1 answer:
GalinKa [24]3 years ago
6 0
After 20% reduction the price is $48 which means $48 is only 80% of the original price...so let x= original price 
<span>48=.8x </span>
<span>60=x </span>
<span>it was $60

</span>
You might be interested in
Would like scatter plot image with line of best fit on the plot
dlinn [17]

Just take it in co-ordinate pairs

  • (x,y)=(Arm span,Height)

Take two points

  • (58,60)
  • (41,40)

Slope:-

\\ \sf\longmapsto m=\dfrac{40-60}{41-58}

\\ \sf\longmapsto m=\dfrac{-20}{-17}

\\ \sf\longmapsto m=\dfrac{20}{17}

\\ \sf\longmapsto m\approx 1.2

Equation of line in point slope form

\\ \sf\longmapsto y-y_1=m(x-x_1)

\\ \sf\longmapsto y-60=1.2(x-58)

\\ \sf\longmapsto y-60=1.2x-69.6

\\ \sf\longmapsto 1.2x-y-9.6=0

  • Convert to slope intercept form y=mx+b

\\ \sf\longmapsto y=1.2x-9.6

Graph attached

7 0
3 years ago
Find the x-values that are solutions of the equation 5cot^2x-15=0
julia-pushkina [17]
First solve for the trig function 'cot'
cot^2 x = \frac{15}{5} = 3

Next take the sqrt of both sides (include plus/minus)
cot x = \pm \sqrt{3}

Now take reciprocal of both sides, this will change trig function to 'tan'
(cot = 1/tan)

tan x = \pm \frac{1}{\sqrt{3}} = \pm \frac{\sqrt{3}}{3}

Finally use the unit circle or inverse tan on your calculator to find x.
There will be 4 solutions, one for each quadrant.

x = \frac{\pi}{6}, \frac{5\pi}{6}, \frac{7\pi}{6}, \frac{11\pi}{6}
3 0
3 years ago
Solve the following equation.<br> 3 ( w + 5) = 2 ( 3w + 12)
Ilya [14]
X=-3 hope this helps!
7 0
3 years ago
Read 2 more answers
Select the correct answer.
shutvik [7]
B is the answer but check if u can simplify it
3 0
3 years ago
-5/6x-7/30x+1/5x-52 please help me guys cuz imk not good with math
Marina CMI [18]

Answer:

\frac{-13}{15} x-52

Step-by-step explanation:

\frac{-5}{6}x-\frac{7}{30}x+\frac{1}{5}x-52

=\frac{-5}{6}x+\frac{-7}{30}x+\frac{1}{5}x+-52

Combine Like Terms:

=\frac{-5}{6}x+\frac{-7}{30}x+\frac{1}{5}x+-52

=(\frac{-5}{6}x+\frac{-7}{30}x+\frac{1}{5}x)+(-52)

=\frac{-13}{15}x+-52

Therefore, \frac{-13}{15}x+-52 will be your final answer.

7 0
2 years ago
Other questions:
  • During the past year in the maternity ward of a hospital in a large city, 1,252 males were born and 1,413 females. If we can ass
    14·1 answer
  • PLEASE ANSWER ASAP!!! THANK YOU!!! ONLY 3 QUESTIONS!!
    5·1 answer
  • A family went to a baseball game. They parked the car in a parking lot which charged ​$10. The cost per ticket was ​$20. Write a
    13·1 answer
  • Which could be the length of the third side of a triangle with side lengths 3ft and 9ft? explain
    11·1 answer
  • What's the answer please help
    14·1 answer
  • Choose all of the linear equations that have no solution.
    10·1 answer
  • I'm bored.....................
    6·2 answers
  • Geometry B Final Exam
    9·2 answers
  • <img src="https://tex.z-dn.net/?f=%7Cx-1%7C%3D%5Csqrt%7Bx%7D" id="TexFormula1" title="|x-1|=\sqrt{x}" alt="|x-1|=\sqrt{x}" align
    11·1 answer
  • Please do 2-6.I’ll give someone Brainiest!!
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!