Mathematics, 30.06.2019 00:00 ZoomZoom44
1. a student took 60 minutes to answer a combination of 20 multiple-choice and extended-response questions. she took 2 minutes to answer each multiple-choice question and 6 minutes to answer each extended-response question. a. write a system of equations to model the relationship between the number of multiple-choice questions (m) and the number of extended-response questions (r).b. how many of each type of question was on the test? show your work.2. a scientist wants to make 6 milliliters of a 30% sulfuric acid solution. the solution is to be made from a combination of 20% sulfuric acid solution and a 50% sulfuric acid solution. (review "mixture problems resources" for .) a. write a system of equations to model the relationship. b. how many milliliters of each solution must be combined to make the 30% solution? show your work.3. choose the method of solving (graphing, substitution, elimination) that seems easier to use for the system below. explain why you made your choice. you do not need to solve the system. 2x-3y=4 2x-5y=-6
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Mathematics, 21.06.2019 17:00
Can someone me i’m confused. will give brainliest and a whole bunch of points
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Mathematics, 21.06.2019 17:20
Given: hf || jk; hg ? jg prove: fhg ? kjg to prove that the triangles are congruent by asa, which statement and reason could be used as part of the proof? fgh ? kgj because vertical angles are congruent. jkg ? hfg because vertical angles are congruent. fhg ? jkg because right angles are congruent. hfg ? kjg because alternate interior angles are congruent.
Answers: 1
Mathematics, 21.06.2019 18:00
Ammonia molecules have three hydrogen atoms and one nitrogen atom.how many of each atom arein five molecules of ammonia
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1. a student took 60 minutes to answer a combination of 20 multiple-choice and extended-response que...
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