Answer:
$173.90
Step-by-step explanation:
The most obvious way to answer this question is to multiply $9.40 by 18.5
This would result in 173.90.
But I realize nobody like to deal with decimals in a multiplication problem, so here's the way I would do it (<em>especially if you don't have a calculator!</em>)
The strategy is to break it down!
Multiply $9.40 x 18 hours to start, since this is easier.
So, that's $169.20 for 18 hours of work.
We aren't finished, because Abdel worked for 18.5 hours.
So, what half of $9.40?
= 4.7
-or-
$4.70
So, knowing that Abdel makes $4.70 in half an hour, lets just add that onto the $169.20 we got earlier.
169.2 + 4.7 = 173.9
-or-
$173.90 for 18.5 hours of work!
Answer:
C) 16 cm^2
Step-by-step explanation:
scale is 1:8 so 2 cm^2x8=16
The answers to your questions are 1.D, and 2.C
Answer:
85000/100*10.5 = $8925
Step-by-step explanation:
N/A
Answer:
The condition are
The Null hypothesis is 
The Alternative hypothesis is 
The check revealed that
There is sufficient evidence to support the claim that in a small city renowned for its music school, the average child takes at least 5 years of piano lessons
Step-by-step explanation:
From the question we are told that
The population mean is 
The sample size is n = 20
The sample mean is 
The standard deviation is 
The Null hypothesis is
The Alternative hypothesis is
So i will be making use of 
level of significance to test this claim
The critical value of 
from the normal distribution table is 
Generally the test statistics is mathematically evaluated as
substituting values
Looking at the value of t and 
we see that 
so we fail to reject the null hypothesis
This implies that there is sufficient evidence to support the claim that in a small city renowned for its music school, the average child takes at least 5 years of piano lessons.
