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Reil [10]
3 years ago
5

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​
Mathematics
2 answers:
Katyanochek1 [597]3 years ago
7 0
78 is the answer because if you take 13 groups of people but in each group there were 6 people then there in total 78 people
Maksim231197 [3]3 years ago
6 0
The answer to your question is 78
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Help i’ll give extra points dawg
Liula [17]
(5b, -1z)
You have to multiply the B and the C by 5 to get the original equation or you could divide the original equation by 5
3 0
3 years ago
The triangle below has a total perimeter of 450 cm:
Korvikt [17]
Equation: 450 = 128 + 150 + n

work:

1st step:
128+150 = 278

2nd step:
450-278 = 172

answer: 172

3rd step (checking) :
450 = 128 + 150 + 172
450 = 278 + 172
450 = 450

3 0
3 years ago
What is the answer to 1/2-1/4
irinina [24]
1/2-1/4
(1/2x2)-1/4
2/4-1/4
2-1
1
1/4
4 0
3 years ago
Read 2 more answers
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
2 years ago
Please help,,, will give brainliest and five stars to correct answer
Zigmanuir [339]
Second option is the correct one.
-24, -96, -384, -1536, -6144, -24576
4 0
3 years ago
Read 2 more answers
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