60%
6 first year
4 experienced
add them = 10
since six are first year u get 60%
The correct answer is

°.
To solve for

, you can start by finding the measures of the triangle's interior angles. Knowing that a straight line measures

°, you can subtract the given values from

° to find the measures of the respective supplementary interior angles. That would give you

°

and

°

.
Now, knowing that the measure of all the interior angles of a triangle is also

°, you can add the two interior angles you know

and subtract those from

°. Doing so would give you the measure of the missing third angle, which is

°.
Finally, because angle

is the supplementary angle of the missing angle from the previous step, simply subtract that angle's measure from

° to find

°, which is

or

°.
Answer:
3
Step-by-step explanation:
Wavelength is usually denoted as letter lambda (λ); it is equal to the speed (v) of a wave train in a medium divided by its frequency (f): λ = v/f. Waves of different wavelengths.
formula: λ = v/f
solution: λ= 30m/s / 10Hz
= 3