60
The expression d squared plus 16d plus 48 can be factored as (d + 4)(d + 12).
many solutions
Write down 24 and directly below that 48. Then draw a short line under 48, and a plus sign right next to the line. Now, starting from right to left, take the 4 from 24 and the 8 from 48. Add these two together. 4 plus 8 makes 12. Write down the 2 from 12 directly under the line under the 8 from 48. Then write down the 1 from 12 above the 2 from 24. Now, take the second column of numers: the 1 from 12, the 2 from 24, and the 4 from 48. Add these up. 1 plus 2 plus 4 makes 7. Write down the 7 under the line under the 4 from 48, just left of the 2 from the 12. As you can see, 72 is the correct answer. 24 plus 48 makes 72.
604530
3x+12=x+48: 3x-x=-12+48 2x=36 x=18
12 + 12 + 12 + 12 equals 48. This can be calculated by adding each pair of 12s together, which results in 24, and then adding the remaining 12s together to get the final answer of 48.
60
The expression d squared plus 16d plus 48 can be factored as (d + 4)(d + 12).
12 + 62 = 12 + 36 = 48
48
36 + 12 = 48
5/12 + 9/16 = 20/48 + 27/48 = 47/48
many solutions
43/48 + 3/16 = 13/12 or 11/12
Write down 24 and directly below that 48. Then draw a short line under 48, and a plus sign right next to the line. Now, starting from right to left, take the 4 from 24 and the 8 from 48. Add these two together. 4 plus 8 makes 12. Write down the 2 from 12 directly under the line under the 8 from 48. Then write down the 1 from 12 above the 2 from 24. Now, take the second column of numers: the 1 from 12, the 2 from 24, and the 4 from 48. Add these up. 1 plus 2 plus 4 makes 7. Write down the 7 under the line under the 4 from 48, just left of the 2 from the 12. As you can see, 72 is the correct answer. 24 plus 48 makes 72.
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