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
Flauer [41]
3 years ago
10

Three numbers have a sum of 68. The second number is 1 less than twice the first. The third number is three times the second. Wh

at are the three numbers?
Mathematics
1 answer:
Vesnalui [34]3 years ago
4 0

Answer:

First number: 71/7

Second number: 135/7

Third number: 270/7

Step-by-step explanation:

First number = x

Second number= 2x-1

Third number= 2(2x-1)

x+(2x-1)+2(2x-1)= 68

3x-1+4x-2=68

7x-3=68

7x=71

x=71/7

You can check by plugging in the x into the equation.

You might be interested in
A hammock that hangs between two trees makes a parabola shape that has the equation y = 0.4(x- 3)² +1, where x is the distance f
34kurt

Answer:

A. The lowest point of the hammock is at the point 1 meters above the ground and 3 meters from one end of the hammock

B. The two trees are 6 meters away from one another

Step-by-step explanation:

The given equation of the parabola representing the hammock is as follows;

y = 0.4·(x - 3)² + 1

The general equation of a parabola is a·(x - h)² + k;

Where the coordinates of the vertex point of the parabola, which is the lowest (or highest, furthest) point on the vertex is (h, k) = (3, 1)

Therefore, we have;

A, The coordinates of the lowest point on the hammock is (3, 1)

Therefore, the lowest point of the hammock is at 1 meters above the ground and 3 meters from one end of the hammock

B.  Given that the distance from one end is "x", we have;

The height at which the hammock is attached is given as the point where x = 0 as follows;

Given that the vertex of the parabola represents the axis of symmetry of the parabola, we have that the horizontal distance from one end of the hammock to the vertex point of the parabola that the hammock forms is (3 - 0) meters = 3 meters

Therefore, by the definition of symmetry, the distance from the vertex point to the other end of the parabola that the hammock forms is also 3 meters

From which we have, the distance the two trees are from one another is 3 meters + 3 meters = 6 meters.

4 0
2 years ago
Factor completely 4x^2 +25+6
malfutka [58]

Answer:

Look at the explanation

Step-by-step explanation:

4x^2+25x+6

(4x+1)(x+6)

Hope this helps!

7 0
3 years ago
Read 2 more answers
7. A triangle has an area of 20 in². If the height of the
GenaCL600 [577]

Step-by-step explanation:

the area of a triangle is

baseline × height / 2

in our case

baseline × 5 / 2 = 20 in²

baseline × 5 = 40

baseline = 8 in

7 0
2 years ago
The equation of a parabola is 116(y+3)2=x+4 . What are the coordinates of the focus? (0, −3) (−8, −3) (−4, −7) (−4, 1)
Temka [501]
Did you get the answer yet
6 0
3 years ago
Read 2 more answers
Help me asap thanks you.
liraira [26]
Ok i dont know the anwser but go to tiger algerbra and get the anwser there i hope you have a nice day
3 0
3 years ago
Other questions:
  • the tigers won twice as many football games as they lost. They played 96 games. How many games did they win?
    15·1 answer
  • Jenna is making hamburgers. She puts sauce on every 2nd burger, pickles on every 3rd burger, and onions on every 5th burger.How
    10·1 answer
  • What is the sum and classification of 3/10 and square root of 10
    5·1 answer
  • How do you set up and solve these inequalities-only 16-20
    13·1 answer
  • For the equation (2x - 2) (4x +4)
    11·1 answer
  • 4. MARKERS A student bought a box of markers. She gave 6 markers to
    9·1 answer
  • What is the equation for a line
    13·2 answers
  • Express each of the following percentages as decimals<br> 633%<br> solution for class 7
    14·2 answers
  • Can someone please help me ill mark you brainliest!!! !!!!
    13·1 answer
  • 2. You draw two marbles without replacement from a bag containing
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!