Answer:
a is 50
b is 100
and c is 130
Step-by-step explanation:
1) the reason why a is 50 because a circle has a constant angle which is 360 so we just need to subtract 360 by 310 to find out the missing angle to complete the entire circle.
2) a straight angle has a constant angle which is 180 degrees and now we have the given angle 80 so to complete the straight angle we just need to subtract 180 to 80.
3) now as we've found a, which is 50 degrees, we now also know that a straight angle is 180 degrees so just subtract 180 by 50 so we get 130.
I'm sorry I'm really bad at explanations but I tried and I hope it helps.
thank you
I think the correct answer is D
Answer:
otal concrete weight =2400kg
have 15% water means in 2400kg of concrete 360kg is water.ramaining 2040kg is of cement,sand and stone.in the ratio of 1:2:5 respectively.then according to ratio.weight of cement=255kg
weight of sand=510kg
weight of stone=1275kg
Step-by-step explanation:
<em>there are 208 cups in 13 gallons.</em>
3) Take the original price and subtract the original price * the discount percentage
99.50 - (99.50 * 0.50)
99.50 - 49.75
49.75
Option C is your answer.
4) Take the original price and add the original price * the tax rate
99.50 + (99.50 * 0.04)
99.50 + 3.98
103.48
Option D is your answer.
5) Take the original price and add the original price * the markup rate
3.95 + (3.95 * 0.20)
3.95 + 0.79
4.74
Option D is your answer.