Hi there!
81x - 122 = 22
Add 122 to both sides
81x = 144
Divide 81 from both sides
x = 144/81
Simplify
x = 16/9 or 1.78
Hope this helped!
Answer:
A= (2,-3) B= (7-4) C= (4,1)
Step-by-step explanation:
Vertices are the corners of the triangle so we can just use the coordinate plane to find the position of the corners.
<h2>
Answer:</h2>

Step-by-step explanation:
Formula :-

Therefore :-



Speed = 2 is the answer ..
Correct me if I'm wrong

Answer:
9. B, C, D
10. A, D, E
Step-by-step explanation:
9. A. Students who bring lunch do not represent cafeteria purchases.
B. - D. Are randomized.
10. A. 1/4 of 50 is 12.5. about equal to 12
B. 12% of 50 is 6. not equal to 12
C. 12 ÷ 50 = 24. 3,000 × 0.24 = 720. not less than 500
D. (see above work) 720 = 720
E. 3,000 - 720 = 2,280. more than 2,000
Hi!
We will solve this using proportions, like this:
65% = 0,65 _______ 39 girls
100% = 1 __________ x girls
x = (39*1)0,65 = 39/0,65
x = 60
Reporter surveyed 60 girls in total.
Hope this helps!