PLEASE HELP!!!!! NOT MULTIPLE CHOICE!

1 answer:

5 0

1. 40% - 25%
ANSWER = 15%

2. There are 24 guests. 1/3 is 8 guests (drinks). 1/4 is 6 guests (desserts). The remaining guests (chips) = 24 - (8+6)
= 24 - 14.
ANSWER: 10 guests brought chips.

3. Not 100% sure about this one, though.
The area is 1112 ft x 912 ft = 1014144 sq ft. You divide the area of the kitchen by the area of the tile (144 sq ft), which is 7042.666667. Because its not a whole number, one of the tiles won't fit completely, so you get rid of it completely and round the number down.
ANSWER = 7042 tiles ???

4. Use BIDMAS for this one (Brackets, Indices, Divison, Multiplication, Addition, Subtraction)
-2[4^2 + (12)2]
Get rid of the (12) first
-2(4^2+24)
Now the other brackets.
4^2 (or 4 squaresquared, with the little 2) is 16, so you do 16+24.
-2(40) or -2 x 40
ANSWER = -80

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