Area = 30 square feet
length = 6 feet
width = ?
w × l = area
w × 6 = 30
w = 30/6
w = 5 feet
Let
R = Ralph's age
S = Sara's age
First statement is translated as:
S = 3R
Second statement is translated as:
S + 4 = 2(R + 4)
Use the first equation to be substituted into the second one in terms of R which is the one we are actually going to solve for Ralph's age.
Since S = 3R, then
3R + 4 = 2(R + 4)
3R + 4 = 2R + 8
3R - 2R = 8 - 4
R = 4 years old
I'm assuming its asking what time he finished? I added it up and it seems to be 7:42 pm.
Answer:
844368.7 m
Step-by-step explanation:
We are given that a typical sugar cube has an edge length of 1.00 cm.
We have to find the edge length of the box in meters.
Edge length of sugar cube=1 cm =
(
)
Volume of a sugar cube=
1 mole of sugar=
Volume of 1 unit=
Volume of 
units=
Volume of box=1 mole of sugar=
Edge length of box=![\sqrt[3]{6.02\times 10^{17}}=844368.7 m](https://tex.z-dn.net/?f=%5Csqrt%5B3%5D%7B6.02%5Ctimes%2010%5E%7B17%7D%7D%3D844368.7%20m)
Answer:
5x^2 + xy + 20
Step-by-step explanation:
Begin with 5x^2+3xy+12, Subtracting 2xy yields 5x^2 + xy + 12. Next, subtracting -8 yields 5x^2 + xy + 12 - (-8), or 5x^2 + xy + 20
