3 times of 1.5 is 8 less than half of a number? 2.9 minus the product of 4.9 and 0.5, which is 16.5 less than 5 times of X? The product of 3.5 and 9, minus three times a number, is 2.1? 4. The sum of five times of a number and five tenths of a number is 16.5. What is the number?

3 times of 1.5 is 8 less than half of a number? 2.9 minus the product of 4.9 and 0.5, which is 16.5 less than 5 times of X? The product of 3.5 and 9, minus three times a number, is 2.1? 4. The sum of five times of a number and five tenths of a number is 16.5. What is the number?

1) X-2-5 * 3 = 8 answer: 46
2) 5x - = 16.5 answer: 3.75
3) 5 * 9-3X = 2.1 answer: 14.3
4) 5x + 5x / 10 = 16.5 answer: 3

Four fifths of a number is more than twenty-four percent of 120. What's the equation

Let this number be X
4/5x-120x20%=24
0.8x- 24=24
0.8x=48
x=60

Two fifths minus four equals three tenths of a number. What is the number? Use the equation to solve it

Let this number be X
2/5x-4=3/10x
x=40

3.9 is 1.8 less than 4 times of a certain number. How much is this number? Use the equation to solve it

Let this number be X
4x-3.9=1.8
4x=1.8+3.9
4x=5.7
x=1.425
A: the number is 1.425