Forty thousands place or the place value: Ten thousands place
Answer:
The total amount of floor space in the building is
Step-by-step explanation:
we know that
A building has 217 floors. Each floor has 505 square feet of floor space
so
To find out the total amount of floor space in the building, multiply the area of one floor by the number of floors of the building
Let
x ------> area of one floor of the building in square feet
y -----> number of floors of the building
z -----> the total amount of floor space in the building in square feet
we have
substitute
Okay, just break it up so you're not overwhelming yourself or anything :)
So here, do it in steps-
Let's do 5(3 + t) first:
Distribute the 5, or in non-mathematical terms, just multiply 5 by 3 and t. This will give you 15 + 5t.
Now onto -3(t + 1):
Again, just multiply -3 by t and 1. This will come out to: -3t - 3.
*Note: the 3 is negative because it's "MINUS 3" in the original equation and remember that any number times a negative, if it isn't negative itself, will turn out to be negative.... (aka "-" x "-" = "+" | "+" x "+" = "+" | "-" x "+" = "-")*
ANYWAY
Now just put both answer together and you get:
15 + 5t -3t - 3. You can only add and minus the LIKETERMS (which are the things that are the same) - in this case, the liketerms are 15 and -3 ,,,, AND 5t and -3t.
15 - 3 = 12
5t - 3t = 2t
12 + 2t is your final answer. Hope that helps! :)
One specific triangle CAN be made with those angles because of the 180 degree total.