The average can be calclculated as follows:
average = sum of number/number of numbers
average = (19+45) / 2 = 64/2 = 32
3/2^2 or 0.75 because you have to take the middle value (3), divide it in half, then square it. That would be 0.75.
<span>180sqcm/45sqcm=4 She cuts 4 triangles from each rectangle.
(4 patches/rectangle)(32 rectangles)=128 patches
ANSWER: She can cut 128 patches.</span>
Answer: I think the answers below are all correct! :)
Step-by-step explanation: --> (that sign means I simplified the equation)
9-7r=-5 --> (9+5)-7r=0 --> 14-7r=0 --> 14=7r --> r=2
6x-5=4x+9 --> 6x=4x+(9+5) --> 6x=4x+14 --> 6x-4x=14 --> 2x=14 --> x=7
3(2d-1)=7d --> *multiply the parenthesis* 6d-3=7d --> -3=7d-6d -->d=-3
2(p-3)=4(3p+1) --> *multiply the parenthesis* 2p-6=12p+4 --> -10p=10 --> p=-1
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Don't know how to do the others below the boxes.
Good Luck!
