-1
-15
10x21=210
2/15 - 14/15 = -12/15 2/15 + 14/15 = 16/15 = 1 1/15
It is so easy if you use your calculator! 15*14 = 210
A = 7. The reason it equals 7 is because 'a' is represented as a multiply number. Therefore what ever number 'A' is, it has to be multiplied by 2 (depending on what number is in front of the letter) Therefore 7 x 2 = 14. 14-15 = -1.
16
Then number half way between them is their mean average: (-3/7 + -15/14) ÷ 2 = (-6/14 + -15/14) ÷ 2 = -21/14 ÷ 2= -21/28 = -3/4
15 + ? = 100 is the same as 100 - 15 So the answer is 85
15 of 0.2 equals 3.
-14
9 plus 135 = 16 The series is formed by dividing the second number by the first number and then adding 1 to the quotient. 18 ÷ 3 = 6 : 6 + 1 = 7 14 ÷ 7 + 2 : 2 + 1 = 3 18 ÷ 6 = 3 : 3 + 1 = 4 112 ÷ 8 = 14 : 14 + 1 = 15 135 ÷ 9 = 15 : 15 + 1 = 16
Negative 15 minus 5 can be solved by subtracting 5 from -15. This results in -20, as subtracting a positive number from a negative number increases the magnitude of the negative value. In mathematical terms, -15 - 5 = -20.