Multiply both numbers by 20 to read 80/100... 80/100 = 0.80
80% = 4/5 or 0.8
4/5 is the simplest form. 0.8 is the same as 80%, because 80% is the result of moving the decimal over two places to the right. 80% is the same as 8/10, and 8/10 simplified is 4/5.
7/4 as a decimal is 1.75
4/10 as a decimal is 0.4
.8 80%
4/5 = 80%
0.84 divided by 5 is 0.8, or you can see that 4/5 = 8/104 over 5 as a decimal would be .80. as a percentage, it would add up to 80%0.8 is 4 over 5 as a decimal.
79.4
Multiply both numbers by 20 to read 80/100... 80/100 = 0.80
If three of the four numbers are 79, 80, and 65, and the average is 85, then the final number will equal (85 x 4) - 79 - 80 - 65 = 116.
mn = 80 m -n = -79 Substitute m - 80/m = -79 m^2 - 80 = -79m m^2 + 79m = 80 (NB Notice change of signs) Quadratic Eq'n m = { - 79 +/- sqrt[)79)^2 - 4(1)(-80)}] / 2(1) m = { - 79 +/- sqrt[6241 + 320}]/ 2 m = { -79 +/- sqrt[6561]} / 2 m = { - 79 +/- 81}/2 m = -160 / 2 = -80 or m = 2/2 = 1 Hence n = 1 + 79 = 80
18 + 79/4 = 151/4 or 373/4
0.804 x 20 = 80 (80/100)5 x 20 = 100 (100/100)
80%:= 0.8 in decimal= 80/100 or 4/5 in fraction
4/5(20) = 80/100. So it would be .80 in decimal form.
80% = 0.8 or 4/5