Brainliest gets 45 !
sarah’s neighbor offers to pay her $5 for every shark tooth she fi...
Mathematics, 18.10.2019 16:00 rconyers00
Brainliest gets 45 !
sarah’s neighbor offers to pay her $5 for every shark tooth she finds on the beach. after collecting only three shark’s teeth, sarah decides to share the opportunity with her friend john. sarah can find shark teeth twice as fast as john, but she can earn even more money with his .
sarah can use the expression 5(2j + 3 + j) to represent the amount of money they can earn.
part 1: writing expressions
1. write an expression that looks like sarah’s expression: 5(2j + 3 + j). replace the coefficients so that your expression is not equivalent. you may use any number that you choose to replace the coefficients. be sure to leave the variables the same. for example, 8(3j + 7 + 3j) looks like sarah’s expression but is not equivalent.
2. translate the new algebraic expression you created in question 1 to a verbal expression.
part 2: writing equivalent expressions
3. you will now use mathematical properties to create two expressions that are equivalent to the expression you created in question 1. make sure you show all steps in your work.
a. use either the commutative property or combine like terms to create an equivalent expression.
b. use the distributive property to create an equivalent expression.
4. pick a number from 1 to 10. use that number to verify your three expressions (the original, the one from 3a, and the one from 3b) are equivalent by substituting it into each expression. show all your work for complete credit.
part 3: finish the story
5. write a few sentences to end sarah’s story. how many shark teeth did she find? how many shark teeth did john find? how much money did they earn?
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