Needs=60
saves=42
needs/saves=what
what=42/60=21/30=7/10
7/10 is how much she saved
Answer:
68%.
Step-by-step explanation:
Dalvin's finishing time is normally distributed with a mean of 65 seconds and a standard deviation of 1 second.
Under the empirical rule, 68% of the results will be within 1 standard deviation.
Since the standard deviation is 1 second, 68% of Dalvin's finishing time will be between 64 and 66 seconds.
Answer:
b
Step-by-step explanation:
Answer:
Step-by-step explanation:
Charge for additional calls = ( 170 - 150)* 13
= 20* 13
= 260 p = £ 2.60
Charge for additional texts = (182-150)*15
= 32 * 15
= 480 p = £ 4.80
Total charge = 16 + 2.60 + 4.80
= £ 23.40