<h2>
Area of rectangle is increasing at 140 cm²/s when the length is 20 cm and the width is 10 cm.</h2>
Step-by-step explanation:
Area = Length x Width
A = LW
Differentiating with respect to time
Length, L = 20 cm
Width, W = 10 cm
Substituting
Area of rectangle is increasing at 140 cm²/s when the length is 20 cm and the width is 10 cm.
She worked 2 1/2 hrs yesterday and 4 1/4 hrs today...
2 1/2 + 4 1/4 =
2 + 4 = 6
1/2 + 1/4 = 2/4 + 1/4 = 3/4
so she worked a total of 6 3/4 hrs....or 6.75 hrs
she is paid $ 54
54 / 6.75 = $ 8 per hr <=== what she earned per hr
Answer:
rat
Step-by-step explanation:
sewer drain
Answer:
7
Step-by-step explanation:
If line l is parallel to line m, therefore:
(alternate exterior angles are congruent)
Subtract 22 from each side
Divide both sides by 16
Answer:
(a^3/7) - 4 + 3
Step-by-step explanation:
We need to translate the words into equations:
The quotient of a number cubed and seven: (a^3/7)
four less than the quotient of a number cubed and seven: (a^3/7) - 4
four less than the quotient of a number cubed and seven, increased by three:
(a^3/7) - 4 + 3