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
shepuryov [24]
3 years ago
10

Maya can run 18 miles in 3 hours, and she can bike 18 miles in 2 hours. When Maya biked for 3 hours and then ran for 1 hour and

30 minutes, what was her average speed?
Mathematics
1 answer:
solmaris [256]3 years ago
4 0

Answer: 8

Step-by-step explanation: Speed is distance/time

18/3 = 6 miles per hour running

18/2 = 9 miles per hour biking

3 hour bike = 27 miles

1.50 hour run (0.50 because 30 minutes is half of an hour) = 9 miles

27 + 9/3 + 1.50 = 36/4.5 or 8

You might be interested in
Th<br> Write an<br> explicit formula for<br> ans<br> then<br> term of the sequence 40,50,60, ....
kenny6666 [7]
<h3>Answer:   a_n = 10n+30</h3>

n starts at 1, and n is a positive whole number (1,2,3,...)

======================================================

Explanation:

The sequence is arithmetic with first term 40 and common difference 10. Meaning we add 10 to each term to get the next one.

--------

a1 = 40 = first term

d = 10 = common difference

a_n = a_1 + d(n-1)\\\\a_n = 40 + 10(n-1)\\\\a_n = 40 + 10n-10\\\\a_n = 10n + 30\\\\

is the general nth term of this arithmetic sequence

Plug in n = 1 and you should get a_1 = 40

Plug in n = 2 and you should get a_2 = 50

and so on

6 0
3 years ago
What two numbers add to 8 and multiply to 28
anygoal [31]
Find numbers that multiply to 28 and add them to see if they add to 8
28=
1 and 28=29 not 8
2 and 14=16 not 8
4 and 7=11 not 8
that's it'
no 2 numbers
we must use quadratic formula

x+y=8
xy=28

x+y=8
subtract x fromb oths ides
y=8-x
subsitute
x(8-x)=28
distribute
8x-x^2=28
add x^2 to both sides
8x=28+x^2
subtract 8x
x^2-8x+28=0

if you have
ax^2+bx+c=0 then x=\frac{-b+/- \sqrt{b^{2}-4ac} }{2a}
so if we have
1x^2-8+28=0 then
a=1
b=-8
c=28

x=\frac{-(-8)+/- \sqrt{(-8)^{2}-4(1)(28)} }{2(1)}
x=\frac{8+/- \sqrt{-48} }{2}
x=\frac{8+/- 4 \sqrt{-3} }{2}
x=4+/- 2 \sqrt{-3}
x=4+/- 2i \sqrt{3}
there are no real numbers that satisfy this
5 0
3 years ago
Solve: -2/5 (1/4 x -4)
Nimfa-mama [501]

Answer:

2/5 is tje correct answer for your question

8 0
3 years ago
Read 2 more answers
HELP i dont understand this.
Talja [164]

Answer:

Step-by-step explanation:

a)    is  SAS   (side , angle, side)

b)  is  SSA ( side , side angle)   and also :P  recognize you can't say   (Angle Side, Side )  or the teacher will send you to the office for cussing :P

3 0
2 years ago
The weather forecaster says that tomorrow there is a 87% chance that it will rain. Which word or phrase describes the probabilit
schepotkina [342]

Answer: likely

Step-by-step explanation:

8 0
3 years ago
Read 2 more answers
Other questions:
  • The volume of a large balloon after it is punctured is represented by the following table:
    14·1 answer
  • Use any method to solve the system of equations.<br> 3x + 4y = 12<br> 2x + 3y = 10<br> Solve for y.
    8·1 answer
  • Evaluate the expression -k+h+kh if k=-5 and h= -2 don't forget order of operations PEMDAS
    5·2 answers
  • Maggie graphed the image of a 90 counterclockwise rotation about vertex A of . Coordinates B and C of are (2, 6) and (4, 3) and
    7·1 answer
  • Finding an Equation of a Tangent Line In Exercise, find an equation of the tangent line to the graph of the function at the give
    6·1 answer
  • Simplify the expression. Write your answer as a complex number.
    13·1 answer
  • If f(x) = x2 – 2x, find:<br> f(-3) = [?]
    9·2 answers
  • Someone please help me with this
    5·2 answers
  • Item 6
    10·1 answer
  • The box plot shows the statistics for the weight, in pounds, of some dogs.
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!