Answer:
Step-by-step explanation:
ratio of 2:1....total of 3....so caroline gets 2/3 of the money and sarah gets 1/3 of the money. Let the total amount of money be x.
so caroline = 2/3x and sarah = 1/3x
caroline gets 45 more then sarah
2/3x = 1/3x + 45
2/3x - 1/3x = 45
1/3x = 45
x = 45 * 3
x = 135.....so the total money is $ 135
caroline gets 2/3 of it.......2/3(135) = 270/3 = $ 90
sarah gets 1/3 of it......1/3(135) = 135/3 = $ 45 <===
Answer: 30.048
Try a calculator, it can help a lot!
Answer:
D.) 12
Step-by-step explanation:
16x - 3(4x + 5) = 2x + 9
16x - 12x - 15 = 2x + 9
4x - 2x = 15 + 9
2x = 24
2x/2 = 24/2
x = 12
Check:
16x - 3(4x + 5) = 2x + 9
16(12) - 3(4(12) + 5) = 2(12) + 9
192 - 3(48 + 5) = 2(12) + 9
192 - 3(53) = 24 + 9
192 - 159 = 33
33 = 33
Answer:
The mean number of deliveries for driver A is less then the mean for driver B by 3 MADs.
