C
D
B
A
that's the answers, from top to bottom. hope this helps!
2x +3y =70
2(0) +3y=70
3y=70
- -
3. 3
Y=23.3 repeating
Ok so Dianne pays $28 to get into the fair, she pays $2 for each ride she ride's so I think the equation would be 28+2x= the amount of money she paid
<span>It's 1/r!
nCr = n! / r!(n-r)!
nPr = n! / (n-r)!
If you divide the two you'd have:
n! / r! (n-r)! * (n-r)! / n! = 1/r!
I hope my answer has come to your help. Thank you for posting your question here in Brainly. We hope to answer more of your questions and inquiries soon. Have a nice day ahead!
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Answer:
x = 20
Step-by-step explanation:
7x° + (x + 20)° = 180° (linear pair)
Solve for x
7x + x + 20 = 180
Add like terms
8x + 20 = 180
8x + 20 - 20 = 180 - 20
8x = 160
8x/8 = 160/8
x = 20
