3 x 5 x 5 = 75
Chat with our AI personalities
Prime factors are numbers that are: prime, and multiply to make the number you want, in this case 75. 75 as a product of prime factors would be, 3 x 5 x 5; if you work this out, the result is 75.
To find the HCF you first have to write the numbers as their prime factors: 36 = 2x2x3x3 75 = 3x5x5 The next step is to identify any common prime factors. In this case both numbers have 3 as a prime factor. Thus the HCF is 3. To find the LCM you need to multiply the numbers together and divide by the HCF. 36x75/3 = 900 Thus the LCM of 36 and 75 is 900.
There is an endless list of numbers that add together to give 175, an example is 75+60+40.
Just multiply the two together to get area. This would be 900 square feet.
You take the .8 and multiply it by 100 because a percent of something is one hundredths of 1. For example, 75 cents is 75 one hundredths of a dollar. 75 cents is written as .75 in decimal form. .75 (75 cents) is 75% of 1 dollar. To change 75 cents or .75 to a percent, you just multiply it by 100 which .75 times 100 is 75. So, to find out what .8 is as a percent you just multiply it by 100 which is 80.