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
erastova [34]
3 years ago
6

What is the length of PR?

Mathematics
2 answers:
OlgaM077 [116]3 years ago
5 0

5/x=15/21=

15x=105

x=7

11111nata11111 [884]3 years ago
4 0

Hi!

So we need to know how much smaller ΔPQR is than ΔDEF.

See line DE compared to PQ. PQ is 3 times smaller than DE. That means ΔPQR is 3 times smaller than ΔDEF.

So to find the length of PR, divide DF by 3.

21/3 = 7

x=7

Hope this helps! :)

-Peredhel

You might be interested in
What is the kinetic energy of a 50-kg child running to catch the school bus at 2 m/s
aev [14]

Answer:

100 J

Step-by-step explanation:

The formula for kinetic energy is as follows:

\boxed{KE=  \frac{1}{2} mv²}

where

KE= kinetic energy (J)

m= mass (kg)

v= velocity (m/s)

Given: m= 50 kg, v= 2 m/s

Substituting the given information into the formula:

KE

= ½(50)(2²)

= ½(50)(4)

= 100 J

7 0
2 years ago
How do you find the area and perimeter of a rectangle. And how do you find the area and perimeter of a square?
cupoosta [38]

Answer:

The perimeter of a rectangle is P = 2 b + 2 h , where is the base (or width) and is the height (or length). If a rectangle is a square, with sides of length , the formula for perimeter is P s q u a r e = 2 s + 2 s = 4 s and the formula for area is A s q u a r e = s ⋅ s = s 2

Step-by-step explanation:

5 0
2 years ago
The table below shows the cube roots of different numbers:
Mila [183]

part A)

\bf \begin{array}{|c|cccccc|ll} \cline{1-7} x&8&27&64&125&&x\\ \cline{1-7} y&\stackrel{\sqrt[3]{8}}{2}&\stackrel{\sqrt[3]{27}}{3}&\stackrel{\sqrt[3]{64}}{4}&\stackrel{\sqrt[3]{125}}{5}&&\sqrt[3]{x} \\ \cline{1-7} \end{array}~\hspace{10em}y = \sqrt[3]{x}

part B)

f(x) = 10 + 20x

so if you rent the bike for a few hours that is

1 hr.............................10 + 20(1)

2 hrs..........................10 + 20(2)

3 hrs..........................10 + 20(3)

so the cost is really some fixed 10 + 20 bucks per hour, usually the 10 bucks is for some paperwork fee, so you go to the bike shop, and they'd say, ok is 10 bucks to set up a membership and 20 bucks per hour for using it, thereabouts.

f(100) = 10 + 20(100) => f(100) = 2010.

f(100), the cost of renting the bike for 100 hours.

4 0
3 years ago
What is the unit price if 4 pounds of fruit cost $6.48
Vaselesa [24]
6.48 / 4 =1.62 is your answer
6 0
3 years ago
Write an equation for the ordered pairs (0,5) (1,0)
Phoenix [80]
M=0-5/1-0
m=-5/1=-5
y-y1=m*(x-x1)
y-5=-5(x-0)
y-5=-5x
y=-5x+5
7 0
3 years ago
Other questions:
  • 2ax-4ay+3bx-6by factor the expression as the product of two binomials
    15·1 answer
  • Any ideas please help thank you
    7·1 answer
  • What is -4j –1–4j 6 in simplest form
    15·1 answer
  • What is the final amount of $70.00 that is put into a savings account with 16% interest rate for 25 years, if the interest is co
    7·1 answer
  • The equation y=2x+10 describes the monthly cost to rent a movie at the local
    11·1 answer
  • 4. John cashed a check for $630. The teller gave him three fifty-dollar
    8·1 answer
  • A state lottery game consists of choosing one card from each of the four suits in a standard deck of playing cards. (There are 1
    5·1 answer
  • Write 5,002,190 in expanded form
    11·2 answers
  • At the carnival, a ferris wheel ride costs 2 tickets and a roller coaster ride costs 4 tickets. Miles has 16 tickets. Write the
    7·1 answer
  • Which of the following equations is the result of completing the square on x^2 - 6x - 9 = 0?
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!