0.9 is the result of finding the product of 2 and 3/4 minus a number. What is the number?

3/40

3/10

33/40

1 1/5

3/5

Step-by-step explanation:

Represent the number by n.  Then 2(3/4) - n = 0.9, or 9/10.

Our task is to solve this equation for n.

Performing the indicated multiplication, we get 3/2 - n = 9/10.

Recognizing that the LCD is 10, we multiply all three terms by 10:

15 - 10n = 9, which simplifies to 6 = 10n.  Then n = 6/10, or 3/5.  

Check:   Is the product of 2 and 3/4 minus a number (3/5) equal to 0.9?

Is (3/2) - 3/5 = 9/10?  Is 15/10 - 6/10 = 9/10?  YES

The number is 3/5.

yo

step-by-step explanation:

yo

add all the numbers and check the ones place.

the answer is 486. as the ones place is more than 4, the estimation will be the next 10 ie, 490