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
Elanso [62]
4 years ago
7

Seraphina is driving two hours to visit her family. For the first hour, she traveled at a speed of 60 miles per hour. Then, in t

he second hour, she traveled at a speed of 73 miles per hour. What is the percentage increase of Seraphina's speed? If necessary, round to the nearest tenth of a percent.
Mathematics
1 answer:
Brums [2.3K]4 years ago
8 0

percent change = (amount of change)/(original amount) × 100%

... = (73 -60)/60 × 100%

... = 13/60 × 100%

... ≈ 0.216667 × 100%

... ≈ 21.7%

Sarah's speed in the second hour was about 21.7% greater than in the first hour.

You might be interested in
How can you make 19 out of 10 8 5 2 3
postnew [5]
8-2=6
10+6+3=19

I’m not sure if you are allowed to do it that way so I can find other ways if needed
7 0
3 years ago
Read 2 more answers
If JKL - PNM. then M = L and the sides NP and<br> KJ are proportional.<br> True <br> Or<br> False???
nikklg [1K]

Answer:

True

Step-by-step explanation:

In similarity triangles, corresponding angles are congruent and corresponding sides are in proportion.

4 0
3 years ago
Read 2 more answers
Rabies is an often-fatal disease typically transmitted through the bite of an infected animal. The state of Florida has been rec
slega [8]

Answer:

a) 3.6

b) 1.897

c)0.0273

d) 0.9727

Step-by-step explanation:

Rabies has a rare occurrence and we can assume that events are independent. So, X the count of rabies cases reported in a given week is a Poisson random variable with μ=3.6.

a)

The mean of a Poisson random variable X is μ.

mean=E(X)=μ=3.6.

b)

The  standard deviation of a Poisson random variable X is √μ.

standard deviation=S.D(X)=√μ=√3.6=1.897.

c)

The probability for Poisson random variable X can be calculated as

P(X=x)=(e^-μ)(μ^x)/x!

where x=0,1,2,3,...

So,

P(no case of rabies)=P(X=0)=e^-3.6(3.6^0)/0!

P(no case of rabies)=P(X=0)=0.0273.

d)

P(at least one case of rabies)=P(X≥1)=1-P(X<1)=1-P(X=0)

P(at least one case of rabies)=1-0.0273=0.9727

8 0
3 years ago
What is 66.5 divided by 3.5
Karolina [17]
66.5 divided by 3.5 is 19.
5 0
4 years ago
Read 2 more answers
Convert a distance of 42 feet into yards.
dybincka [34]

Answer:

14 Yards

Step-by-step explanation:

8 0
3 years ago
Other questions:
  • (ABSOLUTE-VALUE, LINEAR SYSTEMS, and MATRICES)
    12·1 answer
  • Graphs of equations with three variables carlos is buying salad and pizza for a company lunch. suppose that a bowl of salad cost
    10·1 answer
  • What is the average rate of change between:
    8·1 answer
  • (Look at image ) please help ggggggggg
    12·1 answer
  • Check all the statements that are true:
    5·1 answer
  • Help please 15 points up for grabs
    9·1 answer
  • Use the relationship between the angles in the figure to answer the question.
    8·2 answers
  • A taxi cab service charges $3.75 plus $.40 per mile. Molly takes a taxi cab from the local hotel to the airport. If the total ch
    9·1 answer
  • Simplify the following expression. 3 + [(7 ÷ 7)] × 6
    6·2 answers
  • A 500-room hotel collects $80 per occupied room each night. which expression represents the number of dollars the hotel collects
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!