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
Deffense [45]
3 years ago
8

How do you do Rate problems 2?

Mathematics
2 answers:
jarptica [38.1K]3 years ago
6 0
It wants an average. So 30 MPH +12 MPH ÷ 2 which represents the 2 directions. Equal 21 MPH
mina [271]3 years ago
3 0
D = rt
Uphill
d = 10(12/60) d = 2 miles (12/60) represents part of an hour

Downhill
2 = 30t
2/30 = t 1/15 = t 1/15 of an hour = 4 minutes

Average speed = total miles covered/total time
total distance = 4 miles
total time = 4 minutes + 12 minutes = 16 minutes/60 = 4/15 of an hour
4/(4/15) = 15 mph

You might be interested in
Tommy goes swimming every 12 days and hiking every 5 days. He did both today, how many days from now will he do both again? How
Alchen [17]
LCM (5,12) = 60

Roomy will do both again in 60 days ( 2 months )
3 0
2 years ago
A a migrating bird flies 384 miles in 12 hours how many hours does it flies in 5 hours
shusha [124]
Divide 384 by 12 then multiply it by 5 to give you 160
4 0
3 years ago
What is 65/8 as a mixed number
Stolb23 [73]
List\ of\ the\ multiples\ of\ 8:0;\ 8;\ 126;\ 24;\ 32;\ 40;\ 48;\ 56;\ \boxed{64}\\\\\frac{65}{8}=\frac{64+1}{8}=\frac{64}{8}+\frac{1}{8}=\boxed{8\frac{1}{8}}
6 0
3 years ago
Read 2 more answers
What is the slope of =-8x +3
sveta [45]

Answer:

-8

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
83 tens × 2 tens =166
FinnZ [79.3K]
1 cube= 1 unit
1 Rod (Long)= 10 units
10 Rods (Longs)= 1 flat (1 flat=100 units)
10 flat =1 cube(1 cube=1000 units)
83×10= 830
2×10=20
830×20= 16,600
Just wanted to add more to help you understand why 83 is multiplied by ten and 2 is multiplied by 10. Its because when we use Base ten blocks, tens represent 1 Rod (Long)= 10 units. Hope it helps more.

5 0
3 years ago
Read 2 more answers
Other questions:
  • Please help me with this question #20
    13·1 answer
  • 2)
    6·1 answer
  • 15n^2 - 4n + ( -2n+n )
    12·1 answer
  • Factor the polynomial as a product of linear factors with complex coefficients.
    15·2 answers
  • A normal population has a mean of 19 and a standard deviation of 5.
    6·1 answer
  • I need help please .
    7·1 answer
  • Can someone help me with this? please.
    14·1 answer
  • What is the probability that a person who is older than 35 years has a hemoglobin level between 9 and 11?
    5·1 answer
  • Brett finds 70c while doing laundry which set of coins could be the coins that Brett found
    8·1 answer
  • If its total was $490 for the week, what was its average daily change?
    5·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!