Determine whether the Proportion is True or False 19 67 34

Determine whether the Proportion is True or False 19) -6/7 = 3/4 20.) 1/3 = 4/12 Find the Unknown In the Proportion 21.) m/7 = 8/4 22) -3/5 = n/-10 Evaluate for x 4.2, y = 10 and z = -5.16 23) (x + y) + z 24) 2y + 3z -x 25) x^2 + y^2/2

Solution

Solution -

19) We will convert fractions to decimals and check.

-6/7 = -0.85714

3/4 = 0.75

These are not equal.

20)

1/3 = 0.3333.....

4/12 = 0.3333,,,,

So these are equal .

21 )

n/7 = 8/4

Cross multiplying these

4n = 56

n = 14 answer

22)

-3/5 = n/(-10)

Cross multiplying

5n = 30

n = 6 answer