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
Oksana_A [137]
4 years ago
12

A jet flies 3,360 miles from New York to Paris in about 2.7 hours. About how many hours would the jet take to fly 5,687 miles fr

om Paris to Rio de Janeiro?
Mathematics
2 answers:
Stolb23 [73]4 years ago
6 0
You would want to first find the unit rate
2.7 ÷ 3,360 which is .00080357 hours per mile
then multiply
.00080357 × 5,687 which is 4.6 hours
g100num [7]4 years ago
4 0
It's takes about 4.6 hours if your rounding it to the nearest tenth
You might be interested in
What are the solutions of x^2-2x+26=0?
zhuklara [117]

I think it's 2+4×5=6 or 7+910=10

7 0
3 years ago
Read 2 more answers
solve the system of equations by finding the reduced row-echelon form of the augmented matrix for the system of equations. x-2y+
Alekssandra [29.7K]

Answer:

x = -5, y = -6, z = -3

Step-by-step explanation:

Given the system of three equations:

\left\{\begin{array}{l}x-2y+3z=-2\\6x+2y+2z=-48\\x+4y+3z=-38\end{array}\right.

Write the augmented matrix for the system of equations

\left(\begin{array}{ccccc}1&-2&3&|&-2\\6&2&2&|&-48\\1&4&3&|&-38\end{array}\right)

Find the reduced row-echelon form of the augmented matrix for the system of equations:

\left(\begin{array}{ccccc}1&-2&3&|&-2\\6&2&2&|&-48\\1&4&3&|&-38\end{array}\right)\sim \left(\begin{array}{ccccc}1&-2&3&|&-2\\0&-14&16&|&36\\0&-6&0&|&36\end{array}\right)\sim \left(\begin{array}{ccccc}1&3&-2&|&-2\\0&16&-14&|&36\\0&0&-6&|&36\end{array}\right)

Thus, the system of three equations is

\left\{\begin{array}{r}x+3z-2y=-2\\16z-14y=36\\-6y=36\end{array}\right.

From the last equation:

y=-6

Substitute it into the second equation:

16z-14\cdot (-6)=36\\ \\16z=36-84\\ \\16z=-48\\ \\z=-3

Substitute y = -6 and z = -3 into the first equation:

x+3\cdot (-3)-2\cdot (-6)=-2\\ \\x=-2+9-12\\ \\x=-5

7 0
3 years ago
The surface areas of two similar hexagonal prisms are 882cm² and 1,058 cm²? What is the scale factor of the smaller
max2010maxim [7]

Answer:

scale factor of the smaller  prism to the larger prism is B. 21/23

Step-by-step explanation:

Given

surface areas of two similar hexagonal prisms are 882cm² and 1,058 cm²?

scale factor is ratio of sides of two similar objects

thus scale factor for given prism will be = side of smaller prism / side of larger prism

in general rule

If shape of solid has scale factor of k

scale factor of area = k²

scale factor of volume = k³

_____________________________

Given in the problem area of two prism is given

we know area = side^2

scale factor of area = k²

k^2 = area of smaller prism / area of larger prism

k^2 = 882 / 1058 = 441/529\\k = \sqrt{ 441/529} \\k = 21/23

Thus, correct option is B 21/23.

7 0
3 years ago
You deposit $900 in a savings account. The account earns 4% simple interest per year. What is the balance after 8 years? What is
xeze [42]
$900+ $288( interest after 8 years)= $1, 188( total balance)
8 0
3 years ago
Need help with this Algebra sheet
Masteriza [31]

Answer:

Can help! (specify the kind of help - tutoring, Assignment help, etc.)

5 0
3 years ago
Other questions:
  • 12.5% as a reduced fraction
    15·2 answers
  • Two cards are drawn from a well shuffled standard deck of cards of cards. Match each scenario to its probability
    10·1 answer
  • Jimmy is overdrawn at the bank by $180 his brother has $70 more than him how much money does Jimmy's brother have
    9·1 answer
  • How many boxes of fish can fit in the shipping box? Explain your answer, will give brainlest!
    8·1 answer
  • What is the value of 3(y+4)-(x-1) when x=3 and Y=2
    7·2 answers
  • The Cobb-Douglas production model is a function that relates production outputs with a combination of different inputs. Agricult
    15·1 answer
  • HELPPP ASAPPPP PLSSSS Which of the following statements are true? Check all that apply.
    15·1 answer
  • One Classroom has a volume of 564 cubic feet. Another classroom measure 17 feet tall , 8 feet long , and 5 feet wide. How much b
    11·1 answer
  • Drag the numbers to order them from least to greatest. -5/8 -7/9 -4/5 -3/7
    12·1 answer
  • Solve for x. <br><br> 8 ≤ x - (-14)
    14·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!