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Fofino [41]
3 years ago
7

Help! The screenshot is down below!!

Mathematics
1 answer:
uysha [10]3 years ago
3 0

Answer:

Step-by-step explanation:

A) Find the total minutes that Anna walked.To find the average number of minutes, divide the total minutes by total number of days

B) Average number of minutes =

\frac{15*9  + 30*5 + 40*7 + 45*3 + 50*6}{30}\\\\= \frac{135 + 150 + 280 + 135 + 300}{30}\\\\=\frac{1000}{30}\\\\= 33. 33

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Larry is using an online calculator to calculate the outputs f(n) for different inputs n. The ordered pairs below show Larry's i
vredina [299]

Answer:

The answer is c. f(n)=4n+1

Step-by-step explanation:

In the function of the answers, n is the input and f(n) is the output. So the ordered pairs needs to be at the form (n,f(n))

Additionally, in the ordered pairs given in the question, the first term is the input and the second term is the output. For example in the ordered pair (1,5), 1 is the input and 5 is the output.

So, if we replace n by 1, f(n) needs to be 5. This condition is only satisfied on option c. That's is also prove for every ordered pair as:

For (1,5)

if n=1 then:

f(n)=(4*1)+1=5

For (2,9)

if n=2 then:

f(n)=(4*2)+1=9

For (3,13)

if n=3 then:

f(n)=(4*3)+1=13

For (4,17)

if n=4 then:

f(n)=(4*4)+1=17

Finally, the functions that best represents the rule that the calculator uses to display the outputs is f(n)=4n+1

6 0
4 years ago
The speed of sound is approximately 1.2 × 103 km/h. How long does it take for sound to travel 7.2 × 102 km? Write the answer in
Shkiper50 [21]
Time = distance
           ---------------
             speed
           
         =    7.2 x 10^2 
             --------------------
               1.2 x 10^3 
          
         =     0.6 hrs = 0.6 x 60 = 36 minutes.

Hope this helps!



6 0
3 years ago
Find the measurement indicated in each parallelogram.<br> VH=3x+4<br> VX=7x+3<br> find VX
kondaur [170]
I’m a complete parallelogram
6 0
3 years ago
Let a be a nonzero rational number. Is rational or irrational? Prove your answer by picking a value for a and simplifying
Kobotan [32]

Answer:

there is no expression to answer this based off of

Step-by-step explanation:

we can't answer an incomplete question sorry try again and maybe then

3 0
3 years ago
Mrs. Palma took her coworkers out to dinner yesterday and their subtotal was $72.39
vazorg [7]

Answer:

C) $90.48

Step-by-step explanation:

72.39*.2=14.478

72.39*.05=3.6195

14.478+3.6195=18.0975

18.0975+72.39=90.4875

6 0
3 years ago
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