This is one of the things I need help on?

Here's your solution

=> Both angles are interior angles hence their

=> sum will equal to 180°

=> (2x + 10)° + ( x + 5) = 180°

=> 2x + 10° + x + 5° = 180°

=>.3x + 15° = 180°

=> 3x = 180° - 15°

=>. 3x = 165°

=>. x = 165/3

=>. x = 55°

=> hence angle = 120° and 60°

hope it helps

650

Step-by-step explanation:

mark brainliest

step-by-step explanation:

2 tens + 6 ones

1 ten + 16 ones

0 tens + 26 ones

54 kilometers per hour

step-by-step explanation:

according to rules:

1 km = 1000 meter

which means that 1 meter = 1/1000 km

1 hour = 3600 second [ as 1 hour = 60 min = 60 *60 seconds ]

which means that 1 second = 1/3600 hour

therefore, 1 kilometer/hour =

thus to convert 15 meter per second to kilometer per hour, we multiply 15 to 3.6 kilometer/hour.

15 meter/second=   which is the required answer.