Answer:
x = orgininal angle
3x +20 = supplementary angle
1. x + (3x+20) = 180
2. 4x + 20 = 180
3. 4x = 160
4. x = 40
The orginial angle is 40
The supplementary angle is 140
Step-by-step explanation:
1. define your varibles using the words given
2. add them together to equal 180, because they are supplmentary.
3. combine like terms.
4. subtract 20
5. divide by 4
6. you find x, now plug it back into your variables at the top:
x = 40
3(40) + 20 = 140
3 out of 10......3/10 = 0.3 = 30%
5 out of 20 .....5/20 = 0.25 = 25%
higher score is 3 out of 10
Answer:
x=8 y=10
Step-by-step explanation:
Answer:the answer is 5.4
Step-by-step explanation:
thats the answer because it says per means to multiply so i'd multipled 18x 30%
Answer:
20
Step-by-step explanation:
It's pretty much a function rule.
x=y/2 because 2.5*2=5.
So, you want to apply this rule to 10.
10=y/2
10=20/2
Hope this helps!