Answer:
Step-by-step explanation:
Let the width of the rectangle = x
Length = 2x
Perimeter = 96 inches
2 * ( length + width) = 96
2 * ( 2x + x ) = 96
2 * 3x = 96
3x = 96/2 = 48
3x = 48
x = 48/3
x = 16 inches
Width = 16 inches
Length = 2*16 = 32 inches
Area = length*width
= 32*16
= 512 sq.cm
Answer:
i need pionts bbut it is b
Step-by-step explanation:
Answer:
(4×200)+(2×70)+(4×5)
Step-by-step explanation:
First you need to get d alone. so subtract 13c from t and then flip the signs to make d positive so 13c-t=d
Answer:
Lower bound = 5.2
Upper bound = 5.4
Step-by-step explanation:
If a= 4.2 to (1dp):
Upper bound = 4.2 + 0.05 = 4.25
Lower bound = 4.2 - 0.05 = 4.15
If b = 18 (to the nearest whole number)
Upper bound = 18 + 0.5 = 18.5
Lower bound = 18 - 0.5 = 17.5
Therefore:
Lower bound of ((a+b)/a) = ((4.15 + 17.5) / 4.15) = 5.2 to 1 decimal place
Upper bound of ((a+b)/a) = ((4.25 + 18.5) / 4.25) = 5.4 to 1 decimal place
The upper and lower bound are calculated to one decimal place.
