An employee of a company gets a three-digit lock code to enter the building the digits could be 1, 5, or 7 identify the lock codes in the sample space that have at least two fives
a.) 155, 551, 555, 557, 755
b.) 155, 515, 551, 557, 575, 755
c.) 155, 515, 551, 557, 575, 755
d.) 115, 151, 155, 157, 175, 511, 515, 517, 551, 555, 557, 571, 575, 577, 715, 751, 755, 757, 775

One shot. if 60% of 10 is 6, then what is 70%? we know it would be seven (since 60% is mathematically 60/100, or 6/10, then 70% is 70/100, or 7/10) but we can check anyway using ratios: 6 : 60% = x : 70%*inverse multiplicationx * 60% = 6 * 70%*divide both sides by 60%x = (6 * 70%) / 60%x = 7and since he has made 6 shots already, he would need just one more to get 7 shots or 70%. if the explanation is too confusing, comment and i will try to