The probability is 90/500 =18%
700*18%= 700 *18/100 = 126
126 customers will be selected to participate in the survey on Saturday
Answer:
B
Step-by-step explanation:
The LCD of 2/5 + k/4 = 9/10 is 20. Applying this LCD, we get:
8 + 5k = 18. Subtracting 8 from both sides: 5k = 10. Then k = 10/5, or k = 2.
First you would subtract 30 from both sides
they divide each side by 5 to get -7
y =-7