PLEASE TULUGAN NYO AKO I PASA KO ITO BUKAS
1. 10/16 = n/32
2. 3/n = 9/21
3. n/10 = 21/15
4. 102/n = 3 and a 4
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PLEASE TULUGAN NYO AKO I PASA KO ITO BUKAS
1. 10/16 = n/32
2. 3/n = 9/21
3. n/10 = 21/15
4. 102/n = 3 and a 4
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Answer:
1. n=20
2. n=7
3. n=14
4. n=136
Step-by-step explanation:
1. 10/16 = n/32
10/16 ÷ 2 = 5/8
5/8 = n/32
32 × 5/8 = 32 × n/32 (then cancel 32 and the denominator 32)
32 × 5/8 = n
32 × 5 = 160
160 ÷ 8 = 20
20 = n
n = 20
2. 3/n = 9/21
9/21 ÷ 3 = 3/7
3/n = 3/7
n × 3/n = n × 3/7 (then cancel n and the denominator n)
3 = n × 3/7
3 = 3/7n
7 × 3 = 7 × 3n/7 (3n/7 because I moved the n beside the three)
7 × 3 = 7 × 3n/7 (cancel 7 and the denominator 7)
7 × 3 = 3n
21 = 3n
21/3 = 3n/3
7 = n
n = 7
3. n/10 = 21/15
21/15 ÷ 3 = 7/5
n/10 = 7/5
10 × n/10 = 10 × 7/5 (then cancel 10 and the denominator 10)
n = 10 × 7/5
10 × 7 = 70
70 ÷ 5 = 14
n = 14
4. 102 = 3/4
n × 102/n = n × 3/4 (cancel n and the denominator n)
102 = n × 3/4
102 = 3/4n
4 × 102 = 4 × 3n/4 (I moved the n beaide the 3 and then cancel 4 and the denominator 4)
4 × 102 = 3n
408 = 3n
408/3 = 3n/3
136 = n
n = 136
mwa. that's all hehe.