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
masha68 [24]
2 years ago
9

An executive traveled 1,930 miles by car and plane. He drove to the airport at an

Mathematics
1 answer:
Lynna [10]2 years ago
6 0

Answer:

It took 3 hours to get to the airport

Step-by-step explanation: Can I get brainliest? Thanks!

Total distance = 1930

Car speed avg = 60 miles per hour

Plane speed avg = 350 miles per hour

Time = 8 hours

(60*3)+(350*5)=1930 (Try combinations of 3+5, 4+4, 2+6 etc)

It took 3 hours to get to the airport

You might be interested in
I almost got the problem but the problem was the rounding. I believe I rounded right but it is still incorrect. Can someone plea
ella [17]

Answer: The answer that I got for z was 0.111575, which when you round it to the hundredths place would be 0.11

4 0
3 years ago
PLZZZ HURRY!
vfiekz [6]

Answer:

B

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
3. Your teacher wants to make sure everyone has a pencil for class. She has 104 students in all of her classes. The office gave
hoa [83]
104 / 4 = 26 boxes <===
8 0
3 years ago
Read 2 more answers
A survey of 225 students showed the mean number of hours spent studying per week was 20.6 and the standard deviations was 2.7
LekaFEV [45]

Answer:

The margin of error is approximately 0.3

Step-by-step explanation:

The following information has been provided;

The sample size, n =225 students

The sample mean number of hours spent studying per week = 20.6

The standard deviation = 2.7

The question requires us to determine the margin of error that would be associated with a 90% confidence level. In constructing confidence intervals of the population mean, the margin of error is defined as;

The product of the associated z-score and the standard error of the sample mean. The standard error of the sample mean is calculated as;

\frac{sigma}{\sqrt{n} }

where sigma is the standard deviation and n the sample size. The z-score associated with a 90% confidence level, from the given table, is 1.645.

The margin of error is thus;

1.645*\frac{2.7}{\sqrt{225}}=0.2961

Therefore, the margin of error is approximately 0.3

5 0
3 years ago
Read 2 more answers
What two numbers multiply to 30 and add to -17
victus00 [196]

Answer:

-15 and -2

Step-by-step explanation:

Since a negative times a negative equals a positive, but when added, still stays a negative, the factors must both be negative.

Negative Factors of 30:

-30 + -1 = -31

-15 + -2 = -17

-10 + -3 = -13

-6 + -5 = -11

The two factors of 30 that add up to -17 are -15 and -2.

Hope this helps. Have a nice day.

4 0
3 years ago
Other questions:
  • What is the length of LN in the right triangle below?
    5·2 answers
  • 96 points here, having to ask same question again - please help a brother out.
    12·2 answers
  • When a number x is multiplied by 5, it gives the same result as when 48 are added to twice the number. Form an equation in terms
    5·1 answer
  • A school district purchases a high-volume printer, copier, and scanner for $27,000. After 10 years, the equipment will have to b
    12·1 answer
  • At the zoo, the ratio of elephants to hippos is 1.2. So for every elephant, there<br> are hippos
    5·2 answers
  • A rectangular garden that is 11 feet wide. the length of the diagonal is 1 foot greater than the length of the garden. what is t
    11·1 answer
  • The roof has a vertical height of 8 feet. The house has a width of 20
    15·2 answers
  • If the probability that the Islanders will beat the Rangers in a game is 1/9, what is the
    11·1 answer
  • Who defined the large super-continent? A: Milne B:Seismic C: Wegener D. Richter ​
    10·2 answers
  • Brad buys a video game desk for four dollars there was a discount of 20% off what is the sale price
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!