X-9 = -5x+ 9
x + 5x = 9 + 9
6x = 18
x = 3
Answer:
1311m
Step-by-step explanation:
Answer:
40
Step-by-step explanation:
b² - 4ac
= 16 - 4(3)(-2)
= 16 + 24
= 40
If you were to add the two numbers you would get 2 1/2 so the answer would be 2 1/2 hours altogether.
$7.50(2)=$15.00 (She takes the taxi twice, and its $7.50 each time she takes it)
$0.45(16)+$0.45(8)=$10.80 (Each mile is $0.45, she goes 16 miles on the way to work, and only 8 miles on the way home. Since she walks half way and takes the taxi the other half. Half of 16 is 8)
$15.00+$10.80=$25.80
Alexis pays $25.00 per day for her taxi rides.