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Travka [436]
2 years ago
7

Help please ASAP thanks

Mathematics
1 answer:
expeople1 [14]2 years ago
3 0

Answer:

maybe answer it is c

ok I hope it will help u (◕ᴗ◕✿)

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students who failed mathematics scored the following marks 16.5,13.6,12.4,13.7 find the average mark for this students​
SSSSS [86.1K]

Answer:

16.5+13.6+12.4.17.7= 60.2

60.2÷4 =15.05

8 0
3 years ago
At a 3​-mile ​cross-country race, an athlete runs 2 miles at 6 mph and 1 mile at 12 mph. What is the​ athlete's average​ speed?
Tom [10]

Answer: the average speed is 7.5 mph or at least im pretty sure

Step-by-step explanation:

This is because if you make the 2 miles at 6 mph to 1 mile at 3 mph then you get 1 mile at 3mph and 1 mile at 12 mph. now that you have the unit rates of these you can add them. 1 + 1 = 2 miles and 3 + 12 = 15 mph now divide this by two and you get 7.5 mph per mile.

I hope this helped, if it did could you give me a good rating? lol

8 0
2 years ago
Jimmy goes for a run with his friends on the weekend. They run 11km in 5 hours. How long
zheka24 [161]
11km = 5h
1km = 5h divide by 11km = 0.45h
16.5km = 0.45 x 16.5 = 7.42 h
7 0
2 years ago
A(1)=20
Paladinen [302]

Answer:

-14

Step-by-step explanation:

You've got a(1)=20

a(1) means a(n) when n=1

the sequence is telling you to take the previous value of a(n), which is a(n-1) and subtract 17

then:

a(2) = a(1)-17 = 20 - 17 = 3

a(3) = a(2) - 17 = 3-17 = -14

3 0
3 years ago
Solve for x.<br> Need help, please.
dlinn [17]

x=9

hope this helps you. :)

5 0
3 years ago
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