FIRST PART OF QUESTION:
Divide the total paid by the total cost of 3 packets (bundles)
$21.75 ÷ $1.45 = 15 (bundles)
then multiple that total [which is 15(bundles)] by the total of rice cracker packets per $1.45 [which is 3]
(15 x 3 = 45) - answer to first part of question
SECOND PART OF QUESTION:
remember, a packet (bundle) of 3 cost $1.45
first, divide the number of individual packets (60) by the number of "bundle" per $1.45 (3)
60 ÷ 3 = 20 (bundles)
to find the dollar amount of the 20 bundles; multiple by the price per bundle ($1.45)
20 x $1.45 = $29
YES is the answer
Answer:
there you go all the answers
Answer: Negative numbers are placed to the left of zero on the number line
8- | a b
7- |
6- |
5- |
4- |
3- |
2- | x c
1- |______________________________
0 1 2 3 4 5 6 7 8 9
x,x=1,2
Answers:
- x = 7
- Area of shaded region = 162 square units
You may need to leave off the "square units" portion.
=============================================
Explanation:
For now, ignore the smaller rectangle and its dimensions. The larger rectangle has sides 3x and x+5, which I'll call the length and width.
L = 3x
W = x+5
The perimeter of any rectangle is P = 2(L+W). Plug in those values of L and W, and also the given perimeter P = 66. Isolate x.
P = 2(L+W)
2(L+W) = P
2(3x+x+5) = 66
2(4x+5) = 66
8x+10 = 66
8x = 66-10
8x = 56
x = 56/8
x = 7
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Now that we know x, we can find the area of the rectangles.
As you probably can guess, the shaded region is the difference of the two areas.
A = area of larger rectangle
A = (length)*(width)
A = (3x)*(x+5)
A = (3*7)*(7+5)
A = 252
B = area of smaller rectangle
B = (x+3)*(x+2)
B = (7+3)*(7+2)
B = 90
C = area of shaded region
C = A - B
C = 252 - 90
C = 162 square units is the area of the shaded region.
