Answer:
A1.) 87 + 63 =150
180 - 150 = 30
all the As is the same formula....
B1.) 180 - 123 = 57
57 + 82 = 139
180 - 131 = 41
9514 1404 393
Answer:
20%
Step-by-step explanation:
100 mL of the drink is coffee
The total amount of drink is 100 mL +400 mL = 500 mL. Then the fraction that is coffee is ...
coffee/total = (100 mL)/(500 mL) = 1/5 = 1/5 × 100% = 20%
20% of Donna's drink is coffee.
Answer:
The value is
Step-by-step explanation:
From the question we are told that
The sample size is n = 24
The mean is
The standard deviation is
Generally the probability that a randomly chosen student earned a B or higher on the test (score of 80 or higher ) is mathematically represented as
=>
From the z table the area under the normal curve to the right corresponding to -0.225 is
=>
Answer:
Step-by-step explanation:
Cm : km
1 : 2.3
x : 69 Cross multily
2.3x = 69
x =
x = 30cm
the distance between the two towns on the map is 30cm
Answer:
Step-by-step explanation:
-9 1/4 is the aswer