Set it up like this: (1+6)(12+13) = 7 x 25 = 175
More about calculator.
16 x (13/16) = 16/1 * 13/16 = 13
You haven't said what's the total size of the group.Here are all of them:Groups of 2: (12) x (16) = 192Groups of 4: (12 x 11) x (16 x 15) / (2!)2 = 7,920Groups of 6: (12 x 11 x 10) x (16 x 15 x 14) / (3!)2 = 123,200Groups of 8: (12 x 11 x 10 x 9) x (16 x 15 x 14 x 13) / (4!)2 = 900,900Groups of 10: (12 x 11 x 10 x 9 x 8) x (16 x 15 x 14 x 13 x 12) / (5!)2 = 3,459,456Groups of 12: (12 x 11 x 10 x 9 x 8 x 7) x (16 x 15 x 14 x 13 x 12 x 11) / (6!)2 = 7,399,392Groups of 14:(12 x 11 x 10 x 9 x 8 x 7 x 6) x (16 x 15 x 14 x 13 x 12 x 11 x 10) / (7!)2 = 9,060,480Groups of 16:(12 x 11 x 10 x 9 x 8 x 7 x 6 x 5) x (16 x 15 x 14 x 13 x 12 x 11 x 10 x 9) / (8!)2 = 6,370,650Groups of 18:(12 x 11 x 10 x 9 x 8 x 7 x 6 x 5 x 4) x (16 x 15 x 14 x 13 x 12 x 11 x 10 x 9 x 8) / (9!)2 = 2,516,800Groups of 20:(12 x 11 x 10 x 9 x 8 x 7 x 6 x 5 x 4 x 3) x (16 x 15 x 14 x 13 x 12 x 11 x 10 x 9 x 8 x 7) / (10!)2 = 528,528Groups of 22:(12 x 11 x 10 x 9 x 8 x 7 x 6 x 5 x 4 x 3 x 2) x(16 x 15 x 14 x 13 x 12 x 11 x 10 x 9 x 8 x 7 x 6) / (11!)2 = 52,416Groups of 24:(12 x 11 x 10 x 9 x 8 x 7 x 6 x 5 x 4 x 3 x 2 x 1) x(16 x 15 x 14 x 13 x 12 x 11 x 10 x 9 x 8 x 7 x 6 x 5) / (12!)2 = 1,820You can't make groups of more than 24, because there are only 12 boys,and the group must have the same numbers of boys and girls.Total number of possible groups of all sizes = 30,421,754You're welcome.
-1
X-12=13+12 +12x=2525
-13
15 x 13 x 12 is equal to 2,340
13 x 16 = 208
The lcm of 13 and 16 is 208 (13 x 16).
To find the value of 13 ounces when 16 ounces is 2300, you can set up a proportion: 16 ounces / 2300 = 13 ounces / x Cross multiply to find x: 16 * x = 2300 * 13 x = (2300 * 13) / 16 Calculate the value of x: x = 1881.25 Therefore, 13 ounces is approximately 1881.25.
Let's label one of the numbers with x, and the other number with y. So, x + y = 25 4x - 12 = 2y + 16 add 12 and subtract 2y to both sides of the second equation; x + y = 25 4x - 2y = 16 +12 multiply by -4 the first equation; -4x - 4y = -100 4x - 2y = 16 +12 add both equations in order to eleminate x; 0 - 6y = -72 multiply by -1 to both sides; 6y = 72 divide by 6 both sides; y = 12 Substitute 12 for y into the first equation; x + y = 25 x + 12 = 25 subtract 12 to both sides; x = 13 Thus, the numbers are 13 and 12. Check: 13 + 12 = 25 4(13) -12 = 2(12) +16 ? 52 -12 = 24 + 16 ? 40 = 40
Suppose 12 is the GM of 16 and x then 12 = sqrt(16*x) squaring both sides: 144 = 16*x so that x = 9