Round these numbers to the nearest tenth 2.65 and 159.39

2.7  and 159.4

Step-by-step explanation:

To round numbers tot he nearest tenth,check their tenth digit and if the next number that comes before it is equal or greater than 5, then round that tenth digit up by 1.  

The number  2.65  , number 6  is in the tenth place and the number next to it which is 5 is in the hundredths place so to to the nearest tenth will be  2.7  .

The second number 159.39  the tenth place digit is 3 and the number next to it is greater than 5 so after rounding you will get  159.4

u = -(6/7)w

step-by-step explanation:

place all values with 'u' on one side of the equation.

4u + 8w = - 3u + 2w

4u + 3u = 2w - 8w

further simplify the equation by solving the addition and subtraction.

7u = - 6w

make 'u' the independent variable by placing its co-efficient on the right-hand side.

u = - (6/7)w