(8.05 HC) The work of a student to solve a set of equations is shown: Equation A: y = 15 − 2z Equation B: 3y = 3 − 4z Step 1: −3(y) = −3(15 − 2z) [Equation A is multiplied by −3.] 3y = 3 − 4z [Equation B] Step 2: −3y = 15 − 2z [Equation A in Step 1 is simplified.] 3y = 3 − 4z [Equation B] Step 3: 0 = 18 − 6z [Equations in Step 2 are added.] Step 4: 6z = 18 Step 5: z = 3 In which step did the student first make an error? Step 4 Step 3 Step 2 Step 1

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general 10 months ago 7281

Plz just help me, I had a really bad day already, so please just help with these simple question. I will give brainliest if correct. And a thanks! Thank you. :) 50 points for five questions. Each question has ONE picture.1. What is the volume of this triangular prism?182^3195 ^3210 ^3390 ^32. Which equation can be used to find the volume of this solid?V= 2*4*5V= 2+5+4V= 2*5V= 4*53. A box at the post office has dimensions as shown below.What is the volume of the box?1,304 ^31,536 ^31,636 ^32,304 ^34. How much cubic space is in Matti’s greenhouse?220.5 ft^3367.5 ft^3472.5 ft^3735.0 ft^35. What is the volume of the right triangular prism? Round to the nearest tenth.30.7m^361.4m^3306.9m^3613.8m^3

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general 10 months ago 7609