#### • Class 11 Physics Demo

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# 4th grade math definition of period

Question:Soil in a certain area erodes at the rate of 3.2 centimeters per month. How much soil erodes over a period of 5 years? Show work please!

Answers:12 months in 1 year 3.2x 12=38.4 38.4 is how much soil erodes in 1 year according to your data. 38.4 x 5 since 38.4 is one years but you need the ammount of soil eroded over a period of 5 years. 38.4 x 5 = 192 so 192 centimeters of soil in a certain area erode over a period of 5 years. 3.2x 12 3 x 12= 36 0.2x12=2.4 36+2.4=38.4 38.4= centimeters of erosion for 1 year 38 x 5 = 190 0.4x5 = 2 190+2=192 192=erosion for 5 years It doesn't get much higher detailed then this.

Question:please show work The Hard Rock Cafe served 285 hamburgers and 353 sandwich plates. About how many meals were served? ABOUT which is estimate to the nearest hundreths sorry hundredth is really hundred

Answers:If estimating... 285 to the nearest hundred is 300 and 353 is 400... so it would be 700 then?

Question:the question is: (1st part)-what patterns do you see in the multiples of two and four in the multiplication table? (2nd part)-compare how they are alike and how they are different. my little sister needs help. thank you

Answers:You can't help your little sister with that question yourself? Hmmm.... Anyway, if you look at multiples of 2 ( 2, 4, 6, 8, 10, 12, etc. ) every, multiple set of even numbers makes a product of multiples of 4. Look at the chart below. 2 times 2 < 2 multiplied by an even number = 4 2 times 4 < 2 multiplied by the next even number = 8 2 times 6 < 2 multiplied by another even number = 12 If you look, you'll see that the answers to all of these are multiples of 4. It'll be up to your sister to explain how they are alike and how there different.

Question:5 people have 4 sandwiches, how do they split the sandwiches equally--what part does each person get? And how did you get your answer? This is suppose to be 4th grade math!!!

Answers:Each gets 4/5 of a sandwich. Do 4/5 There are 5 people and 4 sandwhiches. Come on man!