It would be 8 hours because you are adding 5 and 3 to get a total
Answer:
Step-by-step explanation:
× = × = ( Domain is x ≠ 1 and x ≠ 5 )
The expression has an excluded value of x = 5
<span>With the number 529, the 5 is the most significant digit, because it tells us that the number is 500 and something. The 2 is the next most significent digit. After that digit is 9, so we will round it and add 1 onto 2 ( 2 + 1 = 3 ). Finally, 529 to 2 significant figures is: 530 ( and the second significant digit (3) has the overline ).</span>
Try this solution:
let the unknown two-digits number be 'xy'.
Then it is possible to write any two-digit number as 10x+y, where x - the tens digit and y - the unit digit.
Using the rule described above the phrase 'the tens digit of a number is twice the units digit' may be written as x=2y.
Using the same rule the phrase 'if the digits are reversed, the new number is 36 is less than the original number' may be written as (10x+y)-(10y+x)=36.
These two equations may be resolved as system of two equations:
Check: the original number is 84, the new number is 48; difference is 84-48=36.
answer: 84
Answer:
2, 6, 10, 14
or
14, 10, 6, 2.
Step-by-step explanation:
Let the four consecutive numbers in A.P. be a - 3d, a - d, a + d, a + 3d
According to the first condition:
a - 3d + a - d + a + d + a + 3d =32
4a = 32
a = 32/4
a = 8
According to the second condition:
Thus the four consecutive numbers of the A. P. are 2, 6, 10, 14 or 14, 10, 6, 2.