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
Yuliya22 [10]
3 years ago
10

Lea left home and drove toward the ferry office at an average speed of 22 km.H. Trevon left at the same time and drove in the op

posite direction with an average speed of 43 km/h. How long does Trevon need to drive before they are 65 km apart?
Mathematics
1 answer:
Alik [6]3 years ago
4 0

Answer:

1 hour

Step-by-step explanation:

Lea's speed = 22km/hr

Trevon's speed = 43km/hr in a direction opposite Lea's

How long does Trevon needs to drive before they are 65km apart.

Note : both took at the same time and in opposite direction.

Recall : speed = distance / time

Distance = speed * time

Distance between them = 65km

Let Trevon's distance = D2 = 43 * t

Lea's distance = D1 = 22 * t

t is the same since they both left at the same time.

D2 + D1 = 65

43t + 22t = 65

65t = 65

t = 65/65

t = 1 hour

You might be interested in
To determine the organic material in a dried lake bed, the percent carbon by mass is measured at two different locations. In ord
Sedaia [141]

Answer:

F statistic = 11.3 ;

-1.02

Step-by-step explanation:

____Location1(%C) ____ Location2(%C)

1 ______ 10.40 _________ 10.10

2 _____ 10.20 _________ 10.90

3 ______10.30 _________ 10.20

4 ______10.40 _________ 10.70

5 ______10.20 _________ 10.40

F = larger sample variance / smaller sample variance

Using calculator :

Sample standard deviation (s)

s1² = 0.01

s2² = 0.113

F = s2² / s1²

F = 0.113 / 0.01

F = 11.3

Yes, the two standard deviations for the locations are significantly different at the 95% confidence level.

B.)

Tvalue

x1 = 10.3 ; x2 = 10.46

μ1 = 10.30 ; μ2 = 10.46

(10.30 - 10.46) / sqrt[(0.01/5) + (0.113/5)]

-0.16 / 0.1568438

-1.02

6 0
2 years ago
Help solve this pls and thanks !!!
Mariulka [41]

Answer:

just add the x's then you will get it that how i got to do it

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
Please help! Will give brainiest to correct person!!
Brut [27]
3.1 if i’m not mistaken
4 0
2 years ago
At the gym, Garson always completes 3 pull-ups for every 8 sit-ups he does. Last night, Garson completed 24 sit-
irakobra [83]

Answer:

-24

Step-by-step explanation:

3*8 is 24

24 (-24)

I hope this was helpful I had the same one on my homework but my teacher gave the class the answer

3 0
3 years ago
Read 2 more answers
Don't understand what to do??
maks197457 [2]
It wants you to find the numbers that add up to 82. then it gives you more clues on how to find the exact digits.
6 0
3 years ago
Other questions:
  • 3^2 • 3^-8 • 3^0<br> i need help with this asap
    7·2 answers
  • A pedro earns 2464 a month. his expenses are at least $1,999 write and solve an inequality to find the possible amounts Pedro ca
    6·1 answer
  • Match each time with a time in the box.
    14·1 answer
  • A scuba diver is swimming in the ocean 10 feet below sea level. Then, she dives down 12
    5·2 answers
  • I am literally in tears. Pls someone help me fast. This is a timed question. I will give all of my points to the answer if it is
    14·1 answer
  • Given z, find lzl.<br> Z = 10i<br> IzI = [?]
    14·1 answer
  • Use the product-to-sum formulas to write the given product as a sum or difference.
    10·1 answer
  • Why is there always more than one parallelogram with the same area and base​
    5·1 answer
  • Use differentials to estimate the amount of paint needed to apply a coat of paint 0.07 cm thick to a hemispherical dome with dia
    7·1 answer
  • Suppose that $2000 is placed in an account that pays 12% interest compounded each year.Assume that no withdrawals are made from
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!