So a straight line equals 180 degrees so you need to subtract the 69 degrees from 180 to get 111 degrees
You then need to subtract the 1 from 111 to get 110
Now the missing angle is
5x=110
You then divide 110 by 5 to get 22
X=22
53) 20
because 2-3 has 6, 4-5 has 10, 6-7 has 3, and 8-9 has 1 so... 6 + 10 + 3 + 1 = 20
54) 70%
because you set up a proportion. 14/20 = ?/100. 14 * 100 = 1400/ 20 = 70
( im pretty sure 52 is 8-9, sorry if im wrong.)
Answer:
336.
Step-by-step explanation:
8 x 7 x 6 = 336.
Feel free to let me know if you need more help! :)
Answer:
Ric is 7 years old.
Step-by-step explanation:
Choose variables for everyone's ages. I'll choose
for Ric's age,
for Paul's age, and
for Tom's age.
Since Ric's age is half of Paul's age, we can write this equation:
![r=\frac{1}{2}p](https://tex.z-dn.net/?f=r%3D%5Cfrac%7B1%7D%7B2%7Dp)
Since Tom is two years younger than Paul, we can write this equation:
![t=p-2](https://tex.z-dn.net/?f=t%3Dp-2)
Since the sum of all their ages is 33 years, we can write this equation:
![r+p+t=33](https://tex.z-dn.net/?f=r%2Bp%2Bt%3D33)
Since we know
and
in terms of
, we can replace them in the equation above as follows:
![r+p+t=33\\(\frac{1}{2}p)+p+(p-2)=33](https://tex.z-dn.net/?f=r%2Bp%2Bt%3D33%5C%5C%28%5Cfrac%7B1%7D%7B2%7Dp%29%2Bp%2B%28p-2%29%3D33)
Now we can solve for
to find
later:
![(\frac{1}{2}p)+p+(p-2)=33\\\frac{5}{2}p-2=33\\\frac{5}{2}p=35\\5p=70\\p=14](https://tex.z-dn.net/?f=%28%5Cfrac%7B1%7D%7B2%7Dp%29%2Bp%2B%28p-2%29%3D33%5C%5C%5Cfrac%7B5%7D%7B2%7Dp-2%3D33%5C%5C%5Cfrac%7B5%7D%7B2%7Dp%3D35%5C%5C5p%3D70%5C%5Cp%3D14)
Now that we know that
, we can substitute 14 for
in the equation
:
![r=\frac{1}{2}p\\r=\frac{1}{2}(14)\\r=7](https://tex.z-dn.net/?f=r%3D%5Cfrac%7B1%7D%7B2%7Dp%5C%5Cr%3D%5Cfrac%7B1%7D%7B2%7D%2814%29%5C%5Cr%3D7)
Ric is 7 years old.
Answer: 85%
Step-by-step explanation:
17*5= 85%
(5*20=100%; 5*17=85%)