math homework help: algebra 1?
the united states postal service receives 38 million changes of address per year. find the rate per day. round to the nearest thousand.
- badbedbugzLv 51 decade agoFavorite Answer
38,000,000 ÷ 365 = 104109.589
Rounded that would be 104,000 per day.
- Anonymous4 years ago
For all those problems you opt to elect and label a variable. In issue one they write appropriate to the dimensions in terms of the width. enable x = the width in view that we are informed the dimensions is one unit greater beneficial than the width we then have: x + a million = the dimensions. with the aid of fact the element of a rectangle is given by length circumstances width (or equivalently width circumstances length), we get the equation: (x)(x + a million) = 30 by the distributive assets we get x^2 + x = 30 placing one component to 0 x^2 + x - 30 = 0 element (x +6)(x-5) = 0 consequently x + 6 = 0 or x - 5 = 0 x = -6 or x = 5. in view that we are speaking a pair of distance we are in a position to brush aside the destructive answer. So the width (which we categorised as x) is 5 gadgets, and the dimensions (which we categorised as x + a million) is 6 gadgets. For issue 2, in view that we are speaking approximately consecutive unusual integers, (ex 3, 5, 7, 9, 11), all of us understand they might desire to be separated by 2 gadgets each. enable x = the 1st consecutive unusual integer Then x + 2 is the 2d consecutive unusual integer. Product implies multiplication, so (x)(x + 2) = 195 x^2 + 2x = 195 x^2 + 2x - 195 = 0 (x + 15)(x - 13) = 0 x = - 15 or x = 13 the 1st pair of ideas is -15 and -15 + 2 = -13 the 2d pair of ideas is 13 and 13 + 2 = 15