Answer:
4n r+
Step-by-step explanation:
Try using calculator cause I seen this before.
John spent 2.4 hours working on the project.
Step-by-step explanation:
Let,
Number of hours worked by Dawn = x
Number of hours worked by Keith = y
Number of hours worked by John = z
According to given statement;
Dawn spent 1.2 hours less than 6 times as many hours on the project as John did.
x = 6z-1.2 Eqn 1
y = 5z+1.2 Eqn 2
As Dawn and Keith worked same amount, therefore,
Eqn 1 = Eqn 2
John spent 2.4 hours working on the project.
Keywords: linear equations, addition
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Answer: 0.84
Step-by-step explanation:
let p be the population proportion of adults who smoked a cigarette in the past week.
As per given , we have
Sample size : n= 1491
The sample proportion of adults smoked a cigarette=
The test statistic for proportion is given by :-
Substitute all the values , we get
Hence, the value of the test statistic = 0.84
Answer:
W = 6 feet
L = 15 feet
Step-by-step explanation:
The perimeter of the rectangle is the length of the outer boundary.
If length is defined as L and width is defined as D,
Perimeter = 2(L + W)
Perimeter is given to be 42 feet.
2(L + W) = 42
(L + W) = 21 ------------------(1)
Also , Its length, L, is three feet more than twice its width, W.
L = 2W + 3 -------------------(2)
Solve (1) and (2) ,
3W + 3 = 21
W = 6 feet
L = 15 feet
Answer:
2
Step-by-step explanation:
Brainliest???