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ozzi
2 years ago
13

Which statement is true? a,b,c or d

Mathematics
1 answer:
Brums [2.3K]2 years ago
8 0
It might be d but i’m not sure
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Three times the sum of a number 2 is the same as the number minus 4. Find the number.
Natali [406]

Answer:the number is ten

Step-by-step explanation:

5 0
3 years ago
Select all radical expressions that are equivalent to 3 4/7
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The second and the third one because first is the same as 3 4/7 and 81=3^4
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3 years ago
Read 2 more answers
A rectangle has vertices (r,t) , (r,s) and (t,t). find the fourth vertex
Andrej [43]

Answer:

(t,s)

Step-by-step explanation:

this point has the x value t and the y value s that is missing.

4 0
2 years ago
The speed of the boat going with a current is 20 mph. When the boat goes against the current, the speed is 16 mph. Find the spee
adoni [48]

Answer:

The speed of the boat in still water is 18 mph.

The speed of the current is 2 mph

Step-by-step explanation:

Let x represent the speed of the boat in still water.

Let y represent the speed of the current.

When the boat goes against the current, the speed is 16 mph. Assuming it traveled against the current while going upstream, its total speed would be (x - y) mph. It means that

x - y = 16  (equation 1)

Going downstream, the boat averages 20 mph. Assuming it traveled with the current, its total speed would be (x + y) mph. It means that

x + y = 20  (equation 2)

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2x = 36

x = 36/2

x = 18 mph

Substituting x = 18 into equation 1, it becomes

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y = 2 mph

4 0
3 years ago
In 1950, scientist estimated a certain animal population in a particular geographical area to be 6400 in 2000, the population ha
irina1246 [14]

Answer:

8,100

Step-by-step explanation:

7,200 - 6,400 = 800 increased in 50. Years

What percentage is 800 of 6,400 (%/100 = is/of)

x/100 = 800/6400 (cross multiply)

(800*100)/6400 = 12.50%

(12.50 * 7200)/100 = 900 increased

7,200 + 900 = 8,100

7 0
2 years ago
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