Please help me solve these math problems..?

1)1972/672 = 2.9345238 = 2.93

2) 74 x .32 = 23.68 = 23.7

3) 20/80 reduce 2/8 factor by 2, 1/4 = 25%

4) Put 84 over 100 and factor 84/100 = 21/25

5) Make fractions of each: 576/1 x 1/4 = 576/4
576/4 = 144


Hope this helps!

= 1,972/672
= 2.93

= 0.32 * 74
= 23.68

= 84/100
= 21/25

= 576 * 1/4
= 144

1)
1972 ÷ 672
= 2.93452380952......
≈ 2.9 or 2.93

2)
74 x 32%
= 74 x 32/100
= 2368/100
= 23.68

3)
20/80 x 100%
= 1/4 x 100%
= 100/4 %
= 25%

4)
84%
= 84/100
= (84 ÷ 4)/(100 ÷ 4)
= 21/25

5)
576 x 1/4
= 576/4
= 144

Solution for 20 is what percent of 80,
20/80*100% = 25%

Solution for change 84% to an equivalent fraction,
84/100 = 42/50 = 21/25.

Solution for multiply 576 and 1/4
=576/4 = 144

1) 1972/672=2.9345238095238095238095238095238

2) 32/100*74=23.68

3)20/100*80=16

4)84/100=0.84

5)576*1/4=144

get out your calculator and press 1,9,7, and 2, then press the divide key. Finish up by pressing 6,7,2, and the equals key, Round the answer

20 is 25% of 80

1972/672 comes out to 2.93452 and a whole string of other numbers. So many so, that it would be better to round off to give a shorter answer. So, let's pick the first option of rounding off to the tenth. The tenth is the first number after the decimal place (the 9), while the hundredth is the second number after the decimal (3), and so on. If you want to round to the tenth, you have to look at the number that comes after it, which is the 3. If the number is 5 or higher (it is not), you'd round up. If it is less (it IS!!) then that number remains unchanged. So, the first answer is 2.9

2.93452 = 2.9

multiply 32% and 74: Here you have to convert the 32% to a decimal. That is easy enough. You are basically dividing by 100, so you move the decimal two spaces to the left. What decimal?? you ask. Well, 32 is really 32.0 or 32.00 or 32.000. The point is that there is an implied decimal after any whole number. So, if you move it two spaces to the left, it is .32. Now you can multiply 74 times .32 to get 23.68

74 X .32 = 23.68

20 is what percent of 80 : Here you setup a division problem. You want the number you are trying to find the percentage for to be divided by the number you are comparing it against. So, 20 divided by 80, which is .25. Final part - you do the opposite of what you did in the previous problem. To convert from decimal to percentage, you multiply by 100 or simply move the decimal place two spots to the right - 25%

20 / 80 = .25 = 25%


change 84% to an equivalent fraction : A percentage is already a fraction in disguise. A percentage is some part of 100. So, 84% is 84 parts of 100 or 84/100. This fraction can be reduced by finding out what number can divide into each evenly. Certainly 2 goes into both numbers, but a bigger number would be 4. 4 goes in 84 21 times and into 100 25 times. Therefore, your reduced equivalent fraction is 21/25

84/100 = 21/25

multiply 576 and 1/4: This is just like the second question. Convert 1/4 into a decimal. Divide 1 by 4 to get .25 then multiply 576 times .25 to get 144

576 X .25 = 144


I hope this helps!