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3 years ago

8

Fifteen sprinters ran the 50-yard dash in an average of 9.5 seconds. Of those runners,3 ran the dash in 11.5 seconds. Find the a

verage time of the other 12 boys

2 answers:

Blizzard [7]3 years ago

8 0

Various answer 4 twelve boys

dezoksy [38]3 years ago

3 0

There might be a variety of averages for the 12 boys.

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Ilya [14]

Answer:

y=44x+178

Step-by-step explanation:

Refer to the picture that given

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2 years ago

One bag contains three white marbles and five black marbles, and a second bag contains four white marbles and six black marbles.

Troyanec [42]

It will be 21/40

probability getting both white marbles

3/8×4/10=12/80

probability getting both black marbles

5/8×6/10=30/80

12/80+30/80=42/80= 21/80

5 0

3 years ago

Read 2 more answers

Write the vector u as a sum of two orthogonal vectors, one of which is the vector projection of u onto v, projvu. u = <-8, -8

aalyn [17]

Answer:

c.) <-1, 2> + <-2, -1>

Step-by-step explanation:

hope i helped

3 0

3 years ago

Read 2 more answers

Coronao Coronao Coronao now now

kari74 [83]

Need choices please ok

7 0

3 years ago

-2x+5-40-9x - 13 help me please

Naddika [18.5K]

Answer:

-48/11

Step-by-step explanation:

-2x+5-40-9x-13=0

-11x=40-5+13

-11x=48

x=-48/11

7 0

3 years ago