It is 9:4.
Reason: divide both numbers by a common multiple, which is 7.
Step 1: All angles in a triangle must add up to 180! Therefore, in the upper triangle, add up the two you know 85+35=120 so the missing angle is 60.
Step 2: Bottom triangle. Your new angle above (60) is the pair of the opposite angle - so it too is 60. So now you know 2 of the 3 angles: 60+64=124 Subtract that from 180 and you get 56...which is the answer for ?
Answer:
x=30
Step-by-step explanation:
Angle sum in a triangle=180
x+3x+2x=180
6x=180
x=30
Answer:
Step-by-step explanation:
The pH of solution a decreases, as the pH of solution B decreases as well.
A divided by B produces a decimal fraction. The percentage is found by mult. this decimal fraction by 100%. So the correct aswer is C.
