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
sergeinik [125]
2 years ago
15

The sum of three numbers is 20

Mathematics
1 answer:
pogonyaev2 years ago
7 0

Answer:

A*B*C= 28

Step-by-step explanation:

A+B+C=20

1. A = 4(B+C)

2. B = 7C

3. C = C

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

1.

A = 4( 7C + C )

A=4(8C)

A= 32C

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

A+B+C=20

32C + 7C + C = 20

40C = 20

C = 20/40

C = 1/2

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

A= 32(1/2) = 32/2 = 16

B= 7(1/2) = 7/2

C= 1/2

A*B*C = 16 * 7/2 * 1/2

A*B*C=  28

             

You might be interested in
On a map the distance from Fort Collins to Cheyenne is 3.2 inches. The angle formed at Laramie has measure 43.6º, and the angle
MArishka [77]
We can solve this by drawing a triangle with three points. The first point at Fort Collins (F), the second at Cheyenne (C) and the third at Laramie (L).

The angle at F = 46.5, the angle at L = 43.6. We know the side opposite angle L = 3.2 (side FC), now we must solve for the side opposite angle F (side LC).

We can use the law of sines to solve this where:

sinA/a = sinB/b
sin43.6/ 3.2 = sin46.5/LC
LC = 3.2 (sin46.5/sin43.6)
LC = 3.37 inches

We are told 1 in = 10.6 miles, therefore:

3.37 inches x 10.6 miles/in = 36 miles from Laramie to Cheyenne.
7 0
3 years ago
Monday 1 tablet is added, on Tuesday 3 are added, on Wednesday 7 are added, on Thursday you forgot to record, on Friday 31 are a
Alborosie
10 tables were added
6 0
3 years ago
Someone must have beaten me here. Devora thinks, dismayed by the empty treasure chest. Then, just as she's about to close the li
LiRa [457]

use your brain dummy

Step-by-step explanation:

4 0
3 years ago
Design an instructional activity that could help learners recognise that decimal
sp2606 [1]

Fraction refers to a part of a whole; e.g when cup is not completely filled, it covers only a part of the cup

<h3>What is fraction?</h3>

The term fraction refers to a part of a whole. To design an instructional activity that  could help learners recognize that decimal fractions can be applied across environmental situations, we could look at certain things in the house.

For instance, when cup is not completely filled, it contains water that covers only an fraction of the cup. Also, we could boil a part and not a whole cup of rice. These are all examples of fractions.

Learn more about fractions:brainly.com/question/10354322

#SPJ1

8 0
2 years ago
1 question, Thanks if you answer, will mark brainliest.
ZanzabumX [31]
Ms Mess gave 2*100=200$
The Clerk gave 3*50=150$
200-150=50$
The end up paying 50-70= (-20$)
Not sure
6 0
3 years ago
Other questions:
  • Find the width of the rectangular prism.
    13·2 answers
  • • Trey attended a New Year's Eve event and watched a ball drop at midnight. Prior
    7·1 answer
  • Hey i need help solving these and not just the answer i really would like to know how
    10·1 answer
  • Which equation could be used to find the value of x in the triangle below?
    10·1 answer
  • John predicts the basketball team will score 68 points. If the basketball team
    13·1 answer
  • Rebeca spent $32.55 for a photo album and three identical candles. The photo album cost $17.50 and the sales tax was $1.55. How
    9·1 answer
  • EASY POINTS<br> PLEASE ANSWER<br> :)<br><br> LOTS OF POINTS!!!!!!!!!!!!!!!!!!!!!!
    7·1 answer
  • Only do 14 please help asap 65 points
    12·1 answer
  • Find the product of 3 1/5 and 5/8<br> Express your answer in simplest form.
    13·1 answer
  • The point-slope form of the
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!