Th 15. There is a two-digit number such that the sum of its digits is 6 while the
of the original number. Find this number.
product of the digits is 1/3 of the original number. Find this number

15

Step-by-step explanation:

"There is a two-digit number such that the sum of its digits is 6"

The digits can be

0, 6   possible numbers: 06, 60

1, 5    possible numbers: 15, 51

2, 3    possible numbers: 23, 32

3, 3     possible numbers: 33

"the product of the digits is 1/3 of the original number"

That means we need a number that is 3 times the product of the digits.

0, 6   product of the digits: 0     3 times product: 0

1, 5    product of the digits: 5     3 times product: 15

2, 3    product of the digits: 6     3 times product: 18

3, 3     product of the digits: 9     3 times product: 27

The only number that appears with both conditions is 15.

15

d. bc = 12 and ef = 16

step-by-step explanation:

we are given that δabc : δdef such that .

also, it is given that

so, from the options, we need that .

a.

b.

c.  

d.

as, we can see that only option d gives the same ratio as i.e. .

hence, the possible lengths are bc = 12 and ef = 16.

687.09 dollars       happy now

step-by-step explanation: 6870

1857 times .63 equals 1169.91 subtract that from 1857 you get 687.09