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
emmainna [20.7K]
3 years ago
10

If ying zyiyu covered the first 200 miles of a trip going at 50 mph and the last hundred miles going at 40 mph, what was his ave

rage speed for the entire trip?
Mathematics
1 answer:
scZoUnD [109]3 years ago
7 0
Thank you for posting your question here at brainly. We find the answer by using mean (or average) when we use mean we add both together and divide by how many numbers we add. So 50 + 40 = 90. 90 / 2 = 45. So 45 is the average speed he traveled at the whole trip. 45 is your answer
You might be interested in
The balcony of an apartment is 4 feet by 7 feet. On a scale drawing of the apartment, the balcony is 0.8 inch by 1.4 inches, and
-Dominant- [34]

Answer:

The actual dimensions of the kitchen are 12\ ft by 14\ ft

Step-by-step explanation:

step 1

Find the scale  of the drawing

To find the scale , remember that is equal to the ratio of  the corresponding dimension in the drawing divided by the corresponding actual dimension

so

\frac{0.8}{4}\frac{in}{ft}=0.2\frac{in}{ft}

step 2

To find the actual dimensions of the kitchen, divide the dimension in the drawing by the scale

so

2.4\ in=2.4/0.2=12\ ft

2.8\ in=2.8/0.2=14\ ft

6 0
3 years ago
A group of people were given a personality test to determine if they were Type A or Type B. The results are shown in the table b
klemol [59]

The option third "P(Male or Type B) < P(Male | Type B)" is correct because 0.575 < 0.76

<h3>What is probability?</h3>

It is defined as the ratio of the number of favorable outcomes to the total number of outcomes, in other words, the probability is the number that shows the happening of the event.

P(Male or Type B) = (number of male + number of type B - number that are both)/total population

\rm = \dfrac{103 + 50- 38}{200 }

= 0.575

P(Male | Type B) = (number of male people inside the type B)/(number of Type B people)

= 38/(38 + 12)

= 0.76

0.575 < 0.76

P(Male or Type B) < P(Male | Type B)

Thus, the option third "P(Male or Type B) < P(Male | Type B)" is correct because 0.575 < 0.76

Learn more about the probability here:

brainly.com/question/11234923

#SPJ1

4 0
2 years ago
Determine the zeros of the function f(x)=x^2-2x-8.
ozzi
X = 4, -2 that should be the roots(zeros) of the function.
6 0
2 years ago
Can anyone help me out with this math problem?
inna [77]
The slope is negative
8 0
3 years ago
The length of a rectangle is 4 less than three times it’s width. The perimeter is 72 feet. Find the dimensions of a rectangle
ratelena [41]

Answer:

Step-by-step explanation:

so let’s say x is the length.  Then the width will be 3x-4.  You add them together and multiply by two.  The perimeter is 72 so the equation equala 72.

Equation:

(x+3x-4)*2=72

(4x-4)*2=72

8x-8=72

8x=80

x=10

length:10

width:26

6 0
3 years ago
Other questions:
  • David and Jillian are playing a board game together. Jillian wants to trade her wool cards for David's ore cards. The double num
    7·2 answers
  • A manufacturing company produces valves in various sizes and shapes. One particular valve plate is supposed to have a tensile st
    15·1 answer
  • Write a two column proof
    15·1 answer
  • 66.64 rounded to the nearest cent
    12·1 answer
  • Decimal Numbers on Number Lines
    15·1 answer
  • How do I solve 12x^2-89x-56 factor by grouping
    8·1 answer
  • What is the exact area of a circle having diameter 7 in.?
    11·1 answer
  • What is 0.00000387 in scientific notation? A. 0.387 × 10–7 B. 3.87 × 10–6 C. 3.87 × 106 D. 387 × 10–8]
    12·1 answer
  • ​4 quarter hours = ​<br> hours
    5·2 answers
  • Which of the expressions are equivalent to the one below? Check all that
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!