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Solution for What is 21 percent of 80:

21 percent * 80 =

(21:100)* 80 =

(21* 80):100 =

1680:100 = 16.8

Now we have: 21 percent of 80 = 16.8

Question: What is 21 percent of 80?

Percentage solution with steps:

Step 1: Our output value is 80.

Step 2: We represent the unknown value with {x}.

Step 3: From step 1 above,{ 80}={100\%}.

Step 4: Similarly, {x}={21\%}.

Step 5: This results in a pair of simple equations:

{ 80}={100\%}(1).

{x}={21\%}(2).

Step 6: By dividing equation 1 by equation 2 and noting that both the RHS (right hand side) of both
equations have the same unit (%); we have

\frac{ 80}{x}=\frac{100\%}{21\%}

Step 7: Again, the reciprocal of both sides gives

\frac{x}{ 80}=\frac{21}{100}

\Rightarrow{x} = {16.8}

Therefore, {21\%} of { 80} is {16.8}

• 1% of 80 is 0.8
  79.2
• 2% of 80 is 1.6
  78.4
• 3% of 80 is 2.4
  77.6
• 4% of 80 is 3.2
  76.8
• 5% of 80 is 4
  76
• 6% of 80 is 4.8
  75.2
• 7% of 80 is 5.6
  74.4
• 8% of 80 is 6.4
  73.6
• 9% of 80 is 7.2
  72.8
• 10% of 80 is 8
  72
• 11% of 80 is 8.8
  71.2
• 12% of 80 is 9.6
  70.4
• 13% of 80 is 10.4
  69.6
• 14% of 80 is 11.2
  68.8
• 15% of 80 is 12
  68
• 16% of 80 is 12.8
  67.2
• 17% of 80 is 13.6
  66.4
• 18% of 80 is 14.4
  65.6
• 19% of 80 is 15.2
  64.8
• 20% of 80 is 16
  64
• 21% of 80 is 16.8
  63.2
• 22% of 80 is 17.6
  62.4
• 23% of 80 is 18.4
  61.6
• 24% of 80 is 19.2
  60.8
• 25% of 80 is 20
  60
• 26% of 80 is 20.8
  59.2
• 27% of 80 is 21.6
  58.4
• 28% of 80 is 22.4
  57.6
• 29% of 80 is 23.2
  56.8
• 30% of 80 is 24
  56
• 31% of 80 is 24.8
  55.2
• 32% of 80 is 25.6
  54.4
• 33% of 80 is 26.4
  53.6
• 34% of 80 is 27.2
  52.8
• 35% of 80 is 28
  52
• 36% of 80 is 28.8
  51.2
• 37% of 80 is 29.6
  50.4
• 38% of 80 is 30.4
  49.6
• 39% of 80 is 31.2
  48.8
• 40% of 80 is 32
  48
• 41% of 80 is 32.8
  47.2
• 42% of 80 is 33.6
  46.4
• 43% of 80 is 34.4
  45.6
• 44% of 80 is 35.2
  44.8
• 45% of 80 is 36
  44
• 46% of 80 is 36.8
  43.2
• 47% of 80 is 37.6
  42.4
• 48% of 80 is 38.4
  41.6
• 49% of 80 is 39.2
  40.8
• 50% of 80 is 40
  40
• 51% of 80 is 40.8
  39.2
• 52% of 80 is 41.6
  38.4
• 53% of 80 is 42.4
  37.6
• 54% of 80 is 43.2
  36.8
• 55% of 80 is 44
  36
• 56% of 80 is 44.8
  35.2
• 57% of 80 is 45.6
  34.4
• 58% of 80 is 46.4
  33.6
• 59% of 80 is 47.2
  32.8
• 60% of 80 is 48
  32
• 61% of 80 is 48.8
  31.2
• 62% of 80 is 49.6
  30.4
• 63% of 80 is 50.4
  29.6
• 64% of 80 is 51.2
  28.8
• 65% of 80 is 52
  28
• 66% of 80 is 52.8
  27.2
• 67% of 80 is 53.6
  26.4
• 68% of 80 is 54.4
  25.6
• 69% of 80 is 55.2
  24.8
• 70% of 80 is 56
  24
• 71% of 80 is 56.8
  23.2
• 72% of 80 is 57.6
  22.4
• 73% of 80 is 58.4
  21.6
• 74% of 80 is 59.2
  20.8
• 75% of 80 is 60
  20
• 76% of 80 is 60.8
  19.2
• 77% of 80 is 61.6
  18.4
• 78% of 80 is 62.4
  17.6
• 79% of 80 is 63.2
  16.8
• 80% of 80 is 64
  16
• 81% of 80 is 64.8
  15.2
• 82% of 80 is 65.6
  14.4
• 83% of 80 is 66.4
  13.6
• 84% of 80 is 67.2
  12.8
• 85% of 80 is 68
  12
• 86% of 80 is 68.8
  11.2
• 87% of 80 is 69.6
  10.4
• 88% of 80 is 70.4
  9.6
• 89% of 80 is 71.2
  8.8
• 90% of 80 is 72
  8
• 91% of 80 is 72.8
  7.2
• 92% of 80 is 73.6
  6.4
• 93% of 80 is 74.4
  5.6
• 94% of 80 is 75.2
  4.8
• 95% of 80 is 76
  4
• 96% of 80 is 76.8
  3.2
• 97% of 80 is 77.6
  2.4
• 98% of 80 is 78.4
  1.6
• 99% of 80 is 79.2
  0.8
• 100% of 80 is 80
  0

Solution for What is 80 percent of 21:

80 percent *21 =

( 80:100)*21 =

( 80*21):100 =

1680:100 = 16.8

Now we have: 80 percent of 21 = 16.8

Question: What is 80 percent of 21?

Percentage solution with steps:

Step 1: Our output value is 21.

Step 2: We represent the unknown value with {x}.

Step 3: From step 1 above,{21}={100\%}.

Step 4: Similarly, {x}={ 80\%}.

Step 5: This results in a pair of simple equations:

{21}={100\%}(1).

{x}={ 80\%}(2).

Step 6: By dividing equation 1 by equation 2 and noting that both the RHS (right hand side) of both
equations have the same unit (%); we have

\frac{21}{x}=\frac{100\%}{ 80\%}

Step 7: Again, the reciprocal of both sides gives

\frac{x}{21}=\frac{ 80}{100}

\Rightarrow{x} = {16.8}

Therefore, { 80\%} of {21} is {16.8}