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
Natalija [7]
4 years ago
12

PLEASE HELP!!!!!!! this is really hard!!!

Mathematics
1 answer:
bekas [8.4K]4 years ago
4 0
When Anne Betty and Cynthia compared the amount of money each had, they discovered that Anne and Betty together had $12 Betty and Cynthia together had $18 and Anne and Cynthia together had $10. 
<span>Who had the least amount of money? and how much was it?
a +b = 12
b + c = 18
a + c = 10
So what I did is simple XD A logical guess and check. I started with a = 1, but that was to little. And also didn't match up. So I kept going up and got a = 2, b = 10, and c = 8</span>
You might be interested in
Express the ratio of the area of triangle abc to the area of triangle edc
Yanka [14]

Given :

Two similar triangle.

To Find :

The ratio of the area of triangle abc to the area of triangle edc.

Solution :

 ΔABC ~ ΔAPQ  (AA criterion for similar triangles)

Since both the triangles are similar, using the theorem for areas of similar triangles we have :

\dfrac{Area \ of \ \Delta ABC}{Area \ of \ \Delta EDC} = \dfrac{AC}{EC}\\\\\dfrac{Area \ of \ \Delta ABC}{Area \ of \ \Delta EDC} = \dfrac{20+8}{20}\\\\\dfrac{Area \ of \ \Delta ABC}{Area \ of \ \Delta EDC} = 1.4

Therefore, ratio of area of triangle is 1.4 .

8 0
3 years ago
. How many strings are there of lowercase letters of length four or less, not counting the empty string
lesantik [10]
<h3>Answer:  475,254</h3>

This is one single number and not two separate numbers.

Delete the comma if your teacher requires it.

=========================================================

Explanation:

I'm assuming letters can repeat.

There are 26 letters in the English alphabet.

There are,

  • A = 26^4 = 456,976 strings of length four
  • B = 26^3 = 17,576 strings of length three
  • C = 26^2 = 676 strings of length two
  • D = 26 strings of length one

Overall, there are A+B+C+D = 456,976+17,576+676+26 = 475,254 strings of length four or less.

3 0
2 years ago
Find the amount of sales tax and the total cost. Complete the table below.
Lana71 [14]

Answer:

Cost of item : $6

Tax rate : 5%

Amount of tax =  $0.3

Total cost = $6.30

Step-by-step explanation:

Cost of item : $6

Tax rate : 5%

Amount of tax = 5% * $6 = 0.05*6 = $0.3

Total cost = $6 + $0.30 = $6.30

5 0
3 years ago
What is the square root of 1/3
Anastaziya [24]

Answer: √3/3

Step-by-step explanation:

√1/3 = 1/√3 x √3 / √3

= √3/3

4 0
3 years ago
Read 2 more answers
28-9X=-12-11X<br><br> How would you answer that?
jolli1 [7]
28-9x=-12-11x \\\\ -9x+11x=-12-28 \\\\ 2x=-40 \\\\ \boxed{x=-\frac{40}{2}=-20}
4 0
3 years ago
Other questions:
  • Hi, please help me out :)) thank you
    5·2 answers
  • A survey was taken of students in math classes to find out how many hours per day students spend on social media. The survey res
    14·1 answer
  • Rosalie earns extra money by working as a babysitter over the weekend. She charges $10 to drive to the home and an additional $8
    8·2 answers
  • A fitness center has two membership plans. One has low dollar sign up fee of 15 dollars and cost 38 dollars a month to join. A s
    10·1 answer
  • There is 174 games scheduled for 6 different leagues each league has the same number of games scheduled how many games does each
    10·1 answer
  • Please Help
    14·1 answer
  • At the local gym, Emmy, jimmy, and jerry tracked their weight loss over the course of their training. At the end of the training
    15·1 answer
  • 36 students signed up to volunteer for a race two or three equal groups of students and each group had a different task how many
    6·1 answer
  • a family swimming pool membership costs $45 per month plus a one-time registration fee of $35. if a family has paid a total of $
    9·1 answer
  • Please answer correctly !!!!!!!!!!!!!! Will mark Brianliest !!!!!!!!!!!!!!!!!!!
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!