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Stells [14]
3 years ago
15

What is 3 1/4 - 1 2/4 =

Mathematics
2 answers:
Ivenika [448]3 years ago
7 0
Change both fractions to mixed numbers :

3 1/4=13/4
1 2/4=6/4

now subtract :

13/4-6/4=7/4

now simplify :

7/4= 1 3/4

hope this helped
Anni [7]3 years ago
4 0
1.75, that is the answer

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In the air, it had an average speed of 16 1616 m/s m/sstart text, m, slash, s, end text. In the water, it had an average speed o
Diano4ka-milaya [45]

Answer:

t_a = 7 s

t_w = 5 s

Step-by-step explanation:

Given:

- The average speed in air v_a = 16 m/s

- The average speed in water v_w = 3 m/s

- The total distance D = 127 m

- The total time T = 12 s

Find:

How long did the stone fall in air and how long did it fall in the water?

Solution:

- Lets time taken by stone to drop through air as t_a = t_a.

- The time taken in water would be t_w = (12 - t_a)

- The total distance covered can be calculated as:

                            D = v_a*t_a+ v_w*(12 - t_a)

                            127 = 16*t_a + 3*(12 - t_a)

Simplify and solve for t:

                            91 = 16*t_a - 3t_a

                            13*t_a = 91

                            t_a = 7 s

                            t_w = 5 s

                           

8 0
3 years ago
4j + 4 =<br> Next, subtract 4 from both sides.<br> 4j
WINSTONCH [101]

Answer:

4j=-4

j=-1

Step-by-step explanation:

5 0
3 years ago
2 to the square root of x-5&gt;3
cluponka [151]
Remove the radical by raising each side to the index of the radical. 
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7 0
3 years ago
Which best describes the range of the function f(x)=2/3(6)x after it has been reflected over the x axis
shtirl [24]
The range is all real numbers.

The function given simplifies to just f(x) = 4x.

This is just a straight line that is increasing from left to right. If we reflect the line over the x-axis, it is still a line that goes on forever in each direction.

Therefore, the range will be all real numbers.
4 0
3 years ago
Read 2 more answers
Exponents of Zero<br> Simplify x^0, where <br> x does not equal 0
densk [106]

Answer:

  1

Step-by-step explanation:

Any non-zero value raised to the zero power is 1.

  x^0 = 1

7 0
3 years ago
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