3.45 rounded to the nearest tenth is 3.5.
1.23 rounded to the nearest tenth is 1.2.
0.85 rounded to the nearest tenth is 0.9.
To find how much further Molly walked than her brother and sister combined, you'd have to combine the amount of miles Molly's brother and sister walked:
1.2 + 0.9 = 2.1
Next, you would have to subtract Molly's amount of miles walked with the combination of her brother and sister's miles walked:
3.5 - 2.1 = 1.4
So, Molly walked 1.4 more miles on her hike than her brother and sister had walked combined.
Answer:
what exactly do you need help with?
Step-by-step explanation:
Answer:
In mathematics, the derivative of a function of a real variable measures the sensitivity to change of the function value with respect to a change in its argument. Derivatives are a fundamental tool of calculus.
Answer: Length is 30 feet and width is 7 feet.
Step-by-step explanation: The dimensions of the rectangle are not given, but the clues given in the question are such that, if the width is W, then the length would be two feet more than four times the width. In other words, the length would be, two plus four times the width, which can be expressed as
2 + 4W. The perimeter given as 74 feet is calculated as
Perimeter = 2(L + W)
If perimeter equals 74, length equals 2 + 4W and width equals W, then the perimeter can be expressed as
74 = 2(2 + 4W + W)
74 = 2(2 + 5W)
74 = 4 + 10W
Subtract 4 from both sides of the equation
70 = 10W
Divide both sides of the equation by 10
W = 7
Hence, if the width is 7, the length would be calculated as
Length = 2 + 4W
Length = 2 + 4(7)
Length = 2 + 28
Length = 30.
Therefore the length equals 30 feet and the width equals 7 feet.
-6x+-4x=-50
-10x=-50
-10(5)=-50
x=5
