Answer:
a=3
Step-by-step explanation:
#5,
it says that the angle on top is 221, so you subtract that from 360,
360-221= the rest..... 139
Now in that 139, you can see that there is a triangle with a right angle. so you can subtract 90 degrees from 139
139-90= 49
49 is the number you use to solve the rest.
3x + 4x = 7x
so 7x = 49
and then you divide 7 from both sides to isolate x, and you get your answer
To make the problem simpler, turn it to an improper fraction.
-7/2--49/48
-7/2+49/48
They have to have same dnominator to add.
-168/48+49/48
-119/48
Answer: 8
Step-by-step explanation: 10+10
10+5+5
5+5+5+5
10+1+1+1+1+1+1+1+1+1+1
1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1
5+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1
5+5+1+1+1+1+1+1+1+1+1+1
5+5+5+1+1+1+1+1
10+5+1+1+1+1+1
