B. Find the missing term of the following proportions using the steps 12:550 Solution 2.64: N= 8:9 Solution 3. N Solution: 4.5:12 = 35: N Solution: 5.2: N=4:18 Solution:
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Answer:
1. 3(50)=5n
150 = 5n150=5n
\frac{150}{5} = \frac{5n}{5}
5
150
=
5
5n
n = 30n=30
2. 64(9) = 8n2.64(9)=8n
576 = 8n576=8n
frac{576}{8} = \frac{8n}{8}
8
576
=
8
8n
n = 72n=72
3. 2(81) = 9n3.2(81)=9n
162 = 9n162=9n
\frac{162}{9} = \frac{9n}{9}
9
162
=
9
9n
n = 18n=18
4. 5n = 12(35)4.5n=12(35)
5n = 4205n=420
\frac{5n}{5} = \frac{420}{5}
5
5n
=
5
420
n = 84n=84
5. 2(18) = 4n5.2(18)=4n
36 = 4n36=4n
\frac{36}{4} = \frac{4n}{4}
4
36
=
4
4n
n = 9n=9
Answer:
1. 3(50)=5n
150 = 5n150=5n
\frac{150}{5} = \frac{5n}{5}
5
150 = 5
5n
n = 30n=30
2. 64(9) = 8n2.64(9)=8n
576 = 8n576=8n
frac{576}{8} = \frac{8n}{8}
8 576 = 8
8n
n = 72n=72
3. 2(81) = 9n3.2(81)=9n
162 = 9n162=9n
frac{162}{9} = \frac{9n}{9}
9 162
=9
9n
n = 18n=18
4. 5n = 12(35)4.5n=12(35)
5n = 4205n=420
5 frac{5n}{5} = \frac{420}{5}
5
5n = 5
420
n = 84n=84
5. 2(18) = 4n5.2(18)=4n
36 = 4n36=4n
\frac{36}{4} = \frac{4n}{4}
4
36 = 4
4n
n = 9n=9
Explanation: