Question

If anyone can help me on this, I would REALLY appreciate it!! [i do check up on this often]



There is an eerie glow in the clearing as the small, strange airships land. Tiny creatures begin climbing out of the airships. There are 2 kinds of creaties: purple creaties with 2 antennas, and blue creatures with 1 large antenna. Altogether there are 23 creatures with 35 antennas.

How many purple and blue creatures have invaded our town?



HELP!! :]

Answer 1

Let x be the number of purple creatures and y be the number of blue creatures.
x + y = 23 = total number of creatures.
2x + y = 35
Solve those two equations for x and y.
x + (35 -2x) = 23
-x = -12
x = 12, y = 23 -x = ?

Answer 2

A cord of wood measured 4 high by 4 feet wide by 8 feet long if the average weight of one square foot of wood is 14.2 pounds how much does a cord of wood weigh?

Answer 3

The east Jackson Public library celebrated library lovers month by giving a book to each student who read at least 10 books at the end of the month 75 students had earned books at a cost of $6.42 per book how much will it cost to give each student a book? Is the answer $481.52.

Answer 4

>> The east Jackson Public library celebrated library lovers month by giving a book to each student who read at least 10 books at the end of the month 75 students had earned books at a cost of $6.42 per book how much will it cost to give each student a book? Is the answer $481.52.

Close! You're off a few pennies. This is pretty straightforward. Just use a calculator, if you're allowed, or multiply on paper.

>> A cord of wood measured 4 high by 4 feet wide by 8 feet long if the average weight of one square foot of wood is 14.2 pounds how much does a cord of wood weigh?

Can't get there from here, McGee!
One square foot of wood is only a surface measurement, not a volume measurement, which is what you would need for this question. If you're talking CUBIC feet of wood, simply multiply L x W x H to get the total cubic feet, then multiply by the weight of one cubic foot of wood.

>> There is an eerie glow in the clearing as the small, strange airships land. Tiny creatures begin climbing out of the airships. There are 2 kinds of creaties: purple creaties with 2 antennas, and blue creatures with 1 large antenna. Altogether there are 23 creatures with 35 antennas.
How many purple and blue creatures have invaded our town?

drwls is on the right track, but I would solve the equations myself instead of relying on the partial answer presented.

Hope this helps!