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
lakkis [162]
4 years ago
6

URGENT HELP NEEDED

Mathematics
1 answer:
kondor19780726 [428]4 years ago
3 0
<span>"ratio of princesses to celebrities is 3:1"

The are 3 more times princesses as celebrities.

</span>"<span>The ratio of superheros to princesses is 5:4"

For each 4 princesses, there are 5 superheroes.

For 1 celebrity, there are 3 pincesses.

For 4 celebrities, there are 12 princesses.
For 12 princesses, there are 15 superheroes.

The ratio of celebrities to princesses to superheroes is
4:12:15 or 4x:12x:15x

Add them: 4x + 12x + 15x = 31x

31x = 93

x = 93/31 = 3

Celebrities: 4x = 4(3) = 12
Princesses: 12x = 12(3) = 36
Superheroes: 15x = 15(3) = 45

</span>
You might be interested in
What is 113.09 rounded to the nearest tenth
ycow [4]
113.10
because the 9 is greater than 5
6 0
3 years ago
Find 2 and 2/3 x 1 and 1/4
Alisiya [41]
Your answer should be 3.33333333333 i think??
4 0
3 years ago
The length of a rectangle is the sum of the width and one. The area direct angle 72 units. What’s the length, in units, of the r
insens350 [35]

Answer:

The length of the rectangle is of 9 units.

Step-by-step explanation:

Solving a quadratic equation:

Given a second order polynomial expressed by the following equation:

ax^{2} + bx + c, a\neq0.

This polynomial has roots x_{1}, x_{2} such that ax^{2} + bx + c = a(x - x_{1})*(x - x_{2}), given by the following formulas:

x_{1} = \frac{-b + \sqrt{\bigtriangleup}}{2*a}

x_{2} = \frac{-b - \sqrt{\bigtriangleup}}{2*a}

\bigtriangleup = b^{2} - 4ac

Area of a rectangle:

A rectangle has width w and length l. The area is the multiplication of these measures, that is:

A = wl

The length of a rectangle is the sum of the width and one.

This means that l = w+1, or w = l - 1

The area direct angle 72 units. What’s the length, in units, of the rectangle

We want to find the length. So

wl = 72

(l-1)l = 72

l^2 - l - 72 = 0

Quadratic equation with a = 1, b = -1, c = -72. So

\bigtriangleup = (-1)^{2} - 4(1)(-72) = 289

l_{1} = \frac{-(-1) + \sqrt{289}}{2*(1)} = 9

l_{2} = \frac{-(-1) - \sqrt{289}}{2*(1)} = -8

Since the length is a positive measure, the length of the rectangle is of 9 units.

8 0
3 years ago
Calculate (6.3 × 10 ^5) × (2.5 × 10^ -2)
Talja [164]

Answer:

15750

Step-by-step explanation:

8 0
3 years ago
A fence is 10 ft wide by 10 ft long. If posts are placed 2 feet apart how many posts are needed?
yuradex [85]

20

There are 10 feet of posts on each side. That means there are 40 feet of fencing in total. If you divide that by two (to represent posts being 2 feet apart) then you get 20. There are 20 posts needed.

6 0
3 years ago
Other questions:
  • What are the positive and negative square roots of 169?????
    9·2 answers
  • Divide 6x3 + 1 − 14x by 3x + 6.
    8·1 answer
  • Can somebody help me?
    13·1 answer
  • To convert a distance of 4500 yards to miles, which ratio could you multiply by
    7·2 answers
  • HELP ASAP I don’t get it
    15·2 answers
  • Please explain how you would graph this line using the slope-intercept method. <br> y = -3/2x + 175
    9·1 answer
  • PLEASE LOOK AT THE PICTURE I NEED HELP ASAP!!
    10·2 answers
  • Solve for x: <br><br>(x+3)²=1​
    14·1 answer
  • What is the solution to the equation?
    14·2 answers
  • Bianca calculated the height of the equilateral triangle with side lengths of 10.
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!