He worked 3 8-hour days.
Let x be the number of 8 hour days. Then 10-x is the number of 6 hour days.
8x + 6(10-x) = 66
Using the distributive property,
8x + 6*10 - 6*x = 66
8x + 60 - 6x = 66
Combining like terms:
2x + 60 = 66
Subtract 60 from both sides:
2x + 60 - 60 = 66 - 60
2x = 6
Divide both sides by 2:
2x/2 = 6/2
x = 3
Answer:
Step-by-step explanation:
Answer:
hope it is what you are looking for
Step-by-step explanation:
according to the question
the volume is
5³+5³+5³+5³+5³+5³+5³+5³+5³+5³
10.5³
2.5.5³
2.5⁴
surface area = 6a²
according to the question
60.5²
6.2.5.5²
12.5³
Answer:
ŷ = 6.69X - 706.18 ; 270.56; B. The predicted value is not close to the actual diastolic reading.
Step-by-step explanation:
Given the data below :
Systolic reading(x) :
117
134
150
113
138
113
144
145
Diastolic (y) :
85
74
86
55
75
80
106
841
A) Find the regression equation, letting the systolic reading be the independent (x) variable:
Using the online regression calculator :
The regression equation obtained is ;
ŷ = 6.69X - 706.18
Where ;
ŷ = dependent variable
6.69 is the gradient or slope
-706.18 is the intercept, where the line crosses the y - axis.
X - the independent variable (Systolic reading)
B.) Find the best predicted diastolic pressure for a person with a systolic reading of 146 .
ŷ = 6.69X - 706.18
ŷ = 6.69(146) - 706.18
ŷ = 270.56
Is the predicted value close to 91.0
B. The predicted value is not close to the actual diastolic reading.