To begin solving this system of linear equations by elimination you can add the equations. 3x + 2y = 38 5x – 2y = -30 8x = 8 This step works because of the A. distributive property B. commutative property 0 0 0 0 O c. multiplication property of equality O D. addition property equality

D

Step-by-step explanation:

Addition property of equality

c = 0.429t

step-by-step explanation:

the constant rate at which carlos harvests cassava is 35 minutes per 15 cassavas 15/35 = 0.429 cassava per minute

therefore, an equation that models the number of cassava (c) that harvest carlos in a time (t) is the following:

where t is the time in minutes.

this means that when 35 minutes have elapsed 15 cassava have been harvested, at 70 minutes 30 cassava have been harvested and so on.

substitute,

circle 1 = 5

circle 2 = 20

circle 3 = 44

in this case no matter how you add, you will always get a perfect square..

hence proved

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