Four distinct integers a, b, c, and d have the property that when added in pairs, the sums 10, 18, 19, 20, 21, and 29 are obtained. What are the four integers in increasing order?

Read Below For Full

The solution is very easy.

Of the 4 integers a, b, c, d, there are 6 possible sums:

a + b

a + c

a + d

b + c

b + d

c + d

Assume

a + b = 16

a + c = 19

a + d = 20

b + c = 21

b + d = 22

c + d = 25

Subtract the first equation from the second to get

c - b = 3

Now, add this to the fourth equation to get

2c = 24, so

c = 12

The rest follows easily from this:

Since c=12, a + c = 19 implies a = 7

Since a=7, a + b = 16 implies b = 9

Since a=7, a + d = 20 implies d = 13

Since b=9, b + c = 21 implies c = 12

Therefore the answer will be 7, 9, 12, and 13

Done and done!

black lol

step-by-step explanation:

h

i can tell you jamal now has 3 cookies xd

tommy has 2.

this made me lol.