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II. Solve each proportion. Write your answer on the blank.
4
Example 1 2
N
12x5=12
INX4-4N
16) 5/12 = 357 n = 84
17) n/52 = 180/ 120 = 14
18) 18/n = 21/28 = 24
19) n/4 = 24/6 =
20) 10/16 = n/56 =
4N-12
IN=1244
95
Therefor the
missing term is 3
Example 21
8
2x 24-48
24
8xN=8N
Therefor the
8N48
IN=48+8
IN-6
missing term is 3​

Sagot :

Answer:

Move  

32

to the left side of the equation by subtracting it from both sides.

n

2

+

4

n

−

32

=

0

Use the quadratic formula to find the solutions.

−

b

±

√

b

2

−

4

(

a

c

)

2

a

Substitute the values  

a

=

1

,  

b

=

4

, and  

c

=

−

32

into the quadratic formula and solve for  

n

.

−

4

±

√

4

2

−

4

⋅

(

1

⋅

−

32

)

2

⋅

1

Simplify.

Step-by-step explanation:

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