Answer:
5 1/7 hours
Step-by-step explanation:
We're looking to calculate TIME. In this situation the proper expression is:
6 letters
time = -----------------------------------------------------------
2 letters / 4 hours + 2 letters / 6 hours
We can divide numerator and denominator both by "2 letters" to simplify the problem:
3 3 hours 3 hours
time = ----------------- hours, or ------------------ = -----------------
1/4 + 1/3 3/12 + 4/12 7/12
Invert the divisor 7/12, and then multiply: (3 hours) (12/7) = 36/7 hours, or
5 1/7 hours
It will take these two guys 5 1/7 hours, working together, to type these 6 letters.
Answer:
Found on ORGANISM, genes determine which PROTEINS your cells will make.
Answer: D. 0.69
Step-by-step explanation:
You can use SOHCAHTOA to find the right trigonometric identity to use:
Sine = opposite / hypotenuse
Cosine = adjacent / hypotenuse
Tangent = opposite / adjacent
The opposite side of angle A is side BC, which is 20 units long.
The hypotenuse is AB, which is 29 units long.
Opposite / hypotenuse = 20 / 29, which equals 0.689.
The correct choice is D.
Answer:
Cost of packing 3 boxes = 3*(2LW + 2WH + 2LH) * 0.02 dollars
Step-by-step explanation:
Assume length of box = L in
height of box = H in
width of box = W in
surface area = (2LW + 2WH + 2LH) sq. in.
surface area of 3 boxes = 3*(2LW + 2WH + 2LH) sq.in.
Cost of packng one sq. in.= 0.02 dollars
Cost of packing 3 boxes = 3*(2LW + 2WH + 2LH) * 0.02 dollars