No, they are not. Convert the fractions to decimals by dividing the numerator by the denominator for each fraction. This will help you find the answer more easily.

6 0

4 years ago

What dose this expression represents? G ^3 /10

slega [8]

A number to the third power divided by 10

4 0

3 years ago

Solve 7x+3y=8 and 4x-y=-9 simultaneously

Jobisdone [24]

Answer: x = -1 and y = 5

Step-by-step explanation:

7x + 3y = 8 ........................... equation 1

4x - y = - 9 ............................ equation 2

Solving the simultaneous linear equation by substitution method , make y the subject of the formula from equation 2 , we have

y = 4x + 9 ............................. equation 3

substitute y = 4x + 9 into equation 1 , we have;

7x + 3 ( 4x + 9 ) = 8

7x + 12x + 27 = 8

19x + 27 = 8

subtract 27 from both sides

19x = -19

divide through by 19

x = -1

substitute x = -1 into equation 3 , we have

y = 4 ( -1) + 9

y = -4 + 9

y = 5

Therefore :

x = -1 and y = 5

5 0

4 years ago

3 3/4 divided by 12 1/2

notka56 [123]

Answer:

$\large\boxed{3\dfrac{3}{4}:12\dfrac{1}{2}=\dfrac{3}{10}}$

Step-by-step explanation:

$\text{Convert the mixed numbers to the improper fractions:}\\\\3\dfrac{3}{4}=\dfrac{(3)(4)+3}{4}=\dfrac{12+3}{4}=\dfrac{15}{4}\\\\12\dfrac{1}{2}=\dfrac{(12)(2)+1}{2}=\dfrac{24+1}{2}=\dfrac{25}{2}\\\\3\dfrac{3}{4}:12\dfrac{1}{2}=\dfrac{15}{4}:\dfrac{25}{2}\\\\\text{To divide a number by a fraction,}\\\text{multiply this number by the reciprocal of that fraction}:\\\\\dfrac{15}{4}\cdot\dfrac{2}{25}=\dfrac{30}{100}=\dfrac{3}{10}$

4 0

4 years ago