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
GaryK [48]
3 years ago
8

Elena’s dad buys another type of cell phone that also usually sells for $250. He pays 75% of the usual price. How much did he pa

y?
Mathematics
1 answer:
Mademuasel [1]3 years ago
8 0
Elena’s dad paid $187.5.
You might be interested in
How do you do this problem? Please explain.
horrorfan [7]

Answer:  8.632

<u>Step-by-step explanation:</u>

First, you need to find the length of AE. Since ΔAEC is a right triangle, we can use:

sin\ C=\dfrac{AE}{AC}\\\\\\sin\ 50 = \dfrac{AE}{5}\\\\\\5\ sin\ 50=AE\\\\3.83=AE

Next, Use Heron's formula to find the Area of ΔADE.

  • AE = 3.83
  • ED = 6
  • AD = 9

Heron's formula is:

A=\sqrt{s(s-a)(s-b)(s-c)}\quad \text{where}\ s = \dfrac{a+b+c}{2}\\\\s=\dfrac{AE+ED+AD}{2}=\dfrac{3.83+6+9}{2}=\dfrac{18.83}{2}=9.415\\\\A=\sqrt{9.415(9.415-3.83)(9.415-6)(9.415-9)}\\\\.\quad=\sqrt{9.415(5.585)(3.415)(0.415)}\\\\.\quad=\sqrt{74.519}\\\\.\quad=8.632

5 0
3 years ago
Solve and check the answers in the original equation
Scrat [10]
 12 + 5k + 15                     -24
------------------- =  -----------------------
      k + 3                      k - 4
 5k + 27              -24
------------ =  ---------------
  k + 3                k - 4

 (k - 4)(5k + 27) = -24 (k + 3)
5k^2 - 20k + 27k -108 = - 24k - 72
5k^2 + 31k - 36 = 0
(5k + 36)(k - 1) = 0

5k + 36 = 0; k = -36/5 = -7.2
k - 1 = 0; k = 1

solutions
k = 1 and k = -7.2

3 0
4 years ago
John is having a new deck built. He paid $485 for the required materials, and he will pay his brother $25 an hour to build the d
Kobotan [32]

Answer:

The answer is not finished but if John is buying the materials and paying for the labor then the answer will be $510.

Step-by-step explanation:

I’m sorry if I didn’t help but the answer is not written out enough…

8 0
3 years ago
If d = 20 and c = 20pi then is it.<br><br> D=1<br> D=100<br> D=12<br> D=1/4<br> R =10<br> R=13
adoni [48]
I am pretty sure it is 10.
Just please double check.

Hope I helped!!!! :)
8 0
3 years ago
Which two ratios form a proportion? A) 1 : 3 and 6 : 3 B) 1 : 3 and 3 : 6 C) 3 : 1 and 9 : 3 D) 3 : 1 and 3 : 9
tamaranim1 [39]

Answer:

c

Step-by-step explanation:

you have to set them up as a fraction and see if they are an equivalent fraction and if they are thats the proportion

4 0
4 years ago
Read 2 more answers
Other questions:
  • pe ling needs 2yd of fabric for craft project she has 3 ft already how many inches of fabric dose she needs
    9·2 answers
  • Okay, so lets say a teacher wants to divide her class of 30 students into 10 groups, but not necessarily of equal size. What are
    13·2 answers
  • London Heathrow airport sees on average 191,200 passengers a day. How many passengers is this per minute?
    6·1 answer
  • -1.25 x 77.5 multiply integers.
    11·1 answer
  • Evan has a suare sticker that measure 5 inches on each side. What is the perimeter of the stickers
    9·2 answers
  • 5. Suppose y varies directly with x, and y= 14<br> when x= 2. What is y when x = 6?
    12·1 answer
  • It took Davina 45 minutes to clean her room. How many seconds did it take her
    15·1 answer
  • Hey! i’ll give brainliest please help
    5·2 answers
  • I need help with this
    10·1 answer
  • What is the surface area of the cube below?
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!