Answer: B. 5 carpenters and 4 masons. Is $2,150
Step-by-step explanation:
250 • 5 = 1,250
225 • 4 = 900
1,250 + 900 = 2,150
$2,150
Answer:
Since p >0.05 at 5% significance level we reject that it is cheaper to eat at a restaurant than to cook the meal yourself!
Step-by-step explanation:
Given that the mean cost of a steak, broccoli, and ride at the grocery store is $13.04.
Sample size n = 100
Sample mean =
Std error of sample =
(Left tailed test)
Mean difference =
Test statistic = t = mean diff/std error
=
p value one tailed =0.075
Since p >0.05 at 5% significance level we reject that it is cheaper to eat at a restaurant than to cook the meal yourself!
Answer:
use order of operations
Step-by-step explanation:
x + 4+10+45 and figure it
Answer:
x=4
Step-by-step explanation:
3(x-1)=9
3x-3=9
3x=9+3
3x=12
x=4
Answer:
The length is 15 and the width is 10
Step-by-step explanation:
Let l = length
w = l-5
We know the area is 150
A = l*w
150 = l ( l-5)
150 = l^2 - 5l
Subtract 150 from each side
0 = l^2 - 5l - 150
Factor
0= ( l+10) ( l-15)
Using the zero product property
l+10 =0 l-15=0
l = -10 l = 15
Since we cannot have a negative length
l = 15
w = 15-5 = 10
The length is 15 and the width is 10