The algebraic equation for half a number plus 7 can be represented as (1/2)x + 7, where x represents the unknown number. In this equation, the term (1/2)x denotes half of the number, and adding 7 accounts for the additional value. This equation can be used to calculate the result when half of a number is added to 7.
6x + 12x + 2x = 80 20x = 80 x = 4
Eight and a half or 8.5
Half of 6 is 3. Half of 8 is 4. 7 is not an even number, so half of 7 will not be a round number. Half of 7 is halfway between half of 6 and 8-halfway between 3 and 4. So half of 7 is 3.5 Additionally, you could multiply 7 by .5 to divide it in half. Your answer will be 3.5, for the reason explained above.
(7-3)^2 plus (7-1)^2 = 16+36
20000 + 2000 + 900 + 80 + 7 = 22987
7 and a half
7 and a half.
80.
42 (half of 80 is 40 and 10% of 20 is 2, therefore 40 + 2)
7000000 + 60000 + 4000 + 80 = 7064080 7 000 000 .... 60 000 ...... 4 000 ........... 80 + ----------- 7 064 080
8.79
1/5 of 80 plus 1/2 of 60 is 46. 1/5 of 80 is 16 1/2 of 60 is 30
One half quart plus one gallon is 80 fluid ounces.
7 and a half
70 + 80 + 70 + 30+ 80 + 80+ 80 = 490
7