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IgorC [24]
3 years ago
15

Additive area

Mathematics
1 answer:
igomit [66]3 years ago
8 0

B, 27 ft²

2*3 + 7*3 = 27

but for this one you could just actually count the tiles

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Kelli swam upstream for some distance in one hour. She then swam downstream the same river for the same distance in only 6 minut
solmaris [256]

Answer:

6.11km/hr

Step-by-step explanation:

Let the speed that Kelli swims be represented by Y

Speed of the river = 5km/hr

Distance = Speed × Time

Kelli swam upstream for some distance in one hour

Swimming upstream takes a negative sign, hence:

1 hour ×( Y - 5) = Distance

Distance = Y - 5

She then swam downstream the same river for the same distance in only 6 minutes

Downstream takes a positive sign

Converting 6 minutes to hour =

60 minutes = 1 hour

6 minutes =

Cross Multiply

6/60 = 1/10 hour

Hence, Distance =

1/10 × (Y + 5)

= Y/10 + 1/2

Equating both equations we have:

Y - 5 = Y/10 + 1/2

Collect like terms

Y - Y/10 = 5 + 1/2

9Y/10 = 5 1/2

9Y/ 10 = 11/2

Cross Multiply

9Y × 2 = 10 × 11

18Y = 110

Y = 110/18

Y = 6.1111111111 km/hr

Therefore, Kelli's can swim as fast as 6.11km/hr still in the water.

4 0
3 years ago
Help me pls i will give brainiest answer
rjkz [21]

Answer:

table; occur; tally mark

Step-by-step explanation:

You would use a table to keep track of a distribution of data. You would have to wait for such data to occur. You could use tally marks to keep track to the data.

Hope this helps.

Sorry if it's wrong though.

7 0
3 years ago
Solve for x.<br> <br> 13x + 7 = 5x - 20
myrzilka [38]
The answer is -27/8= -3.375
7 0
3 years ago
Read 2 more answers
Whats 2+2+2+2+2+2+2+2+2+2
eimsori [14]

Answer:

20

Step-by-step explanation:

there are 10 2s

2×10 =20

7 0
3 years ago
Read 2 more answers
Can somebody please get me the answer to this?
Advocard [28]

Answer:

x = 15 , y = 105 ,z= 105

Step-by-step explanation:

i dont think you need explanation for all this

7 0
2 years ago
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