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nikklg [1K]
3 years ago
10

If a runner covers 400 meters in 50 seconds, what is the runners average speed? What if the runner takes 60 seconds to cover the

same distance?
Mathematics
2 answers:
weqwewe [10]3 years ago
7 0
400/50 = 8 m/s;
400/60 = 6,(3) m/s;
Crank3 years ago
7 0

Answer:

400/50 = 8 m/s 400/60 = 6,(3) m/s

Step-by-step explanation:

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Triangle ABC is translated 2 units down and 1 unit left. Then it is rotated 90 degrees clockwise about the origin to create tria
sergij07 [2.7K]

Answer : D.) A'(-2, 1), B'(1, 0), C'(-1, 0)

As per the given diagram

Point A : (0,0)

Point B: (1,3)

Point C : (1,1)

WE translate each point 2 units down and 1 unit left.

The points are in ordered pair (x,y)

For 2 units down we subtract 2 from y

For 1 unit left we subtract 1 from x

After translation

Point A : (0,0) ---> (0-1 , 0-2) ---> (-1, -2)

Point B: (1,3) ---> (1-1 , 3-2) ---> (0, 1)

Point C : (1,1) ---> (1-1 , 1-2) ---> (0, -1)

Now we rotated 90 degrees clockwise about the origin

While rotating 90 degree clockwise (x , y) becomes (y , -x)

Point A' : (-1, -2) ---> (-2, 1)

Point B': (0, 1) -----> (1,0)

Point C' : (0, -1) -----> (-1 ,0)

7 0
3 years ago
Read 2 more answers
You are planning a skating party at a rink that charges a basic fee of $6.00 and $6.50 per person for catered parties. You don't
Marysya12 [62]

Answer:

y = 6.50x + 6 or 71 = 6.50x + 6

10 people are the max you can invite

Step-by-step explanation:

7 0
3 years ago
How many groups of 3/4 are in each of the following quantities? 6 1/2<br> answer as a fraction
Allushta [10]
8 2/3

because 6 1/2 divided by 3/4 is 8 2/3
7 0
3 years ago
Find the sum of the first 12 terms of the sequence 512, 256, 128, … This is infinite series notation, the answer is NOT 896...
postnew [5]

Answer:

1023.75

Step-by-step explanation:

The sum of a geometric sequence is

sum = a( 1 - r^n) / (1-r)

where a is the first term  r is the common ratio and  r^n is the nth term

We need to find the common ratio

r = 256/512 = 1/2

sum = 512 ( 1 - 1/2^12) / ( 1-1/2)

       =512( 1-.000244141) / (.5)

       =512(.999755859) /.5

     =1023.75

7 0
3 years ago
Read 2 more answers
Pls help me guys!<br> Thanks :D I'm really stuck
Katarina [22]
A) <
You are welcome and if someone else answers, mark me brainliest
5 0
3 years ago
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