#### • Class 11 Physics Demo

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# how do you evaluate expressions 6th grade math

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Question:please explain! Here is an example: 3x-14 sOrry how about the example How do you simplify ths? 3x5

Answers:Collect like terms --> same variables are alike, numbers are a like and you just add and subtract them depending on the question

Question:1)the round-trip distance between kaitlins house and her school is 3.2 miles.kaitlin rides her bike to school 3 days per week.write an expression that can be used to find the # of miles kaitlin rides in w weeks 2)at a self-service copy center,the cost of making copies is $0.08 per copy for the 100 copies,$0.06 per copy for copies 101-200,and $0.05 per copy for any above 200.stan needs to make 7 copies of a 30 page report.how much should he expect to pay? 3)maria poured out g glasses of juice for a party she is hosting.if each glass contained 0.2 liter of juice,which expression decribes the total amount of juice she poured? 4)after driving 159.7 miles,rasheed had r miles left to travel.if the total distance he needd to travel was 201.3 miles, which equation can you use to find the value of r? Answers:3w(3.2)$14.50 0.2g 159.7 + r = 201.3

Question:Evaluate each expression if x = 7, y = 15, and z = 8. 1.) 9y / (2x+1) What is the answer I need help! Will you tell me how to do it?

Answers:ok first you have to replace the letters with the numbers.. 9x15/(2x7+1) then you need to figure out the problem that's in the brackets 2 times 7=14 plus 1=15 so you can change it to 9x15/15 9 times 15=135 divded by 15=9 So the answer is 9 Hope i helped! :) if you need some more help email me im 13 and im in grade 10

Question:Does it mean to solve it? OR something else? Example problem... 6 x (times) 7 - 3(4 + 1) I came up with the answer---27...any thoughts?? Thanks so much!!!