Please help me with my hw Sean presented on Order Relationship properties. Match

Question

Please help me with my hw

Sean presented on Order Relationship properties. Match each property with its description. a + (-a) = 0 Commutative Property a times (b + c) = a times b + a times c Additive Inverse a times b = b times a Distributive Property Which effective strategy did Scan use? Thames discussed 3 types of percent problems, using the formula: Use the formula to solve: 28 is 40% of what number? Mrs. Potter gave a lesson on Percent Increase and Decrease. (Percent Change) Fill in the blank to find the percent change: A pair of socks went from $5 to $6, what is the percent change? Write each decimal as a fraction. 0.45

Explanation / Answer

let the number be x

given 40% of number is equal to 28

(40/100)*x=28

x=28*100/40=70

% change with respect to intial valve=(final valve -intial valve)*100/intial valve

% change with respect to final valve=(final valve -intial valve)*100/final valve

10) b given the cost of pair of scoks went to$5 to $6

%change=(6-5)*100/5=100/5=20%

0.45=45/100=9/20

8)

1)a+(-a)=additive property

2)a*(b+c)=a*b+a*c-distributive property

3. a*b=b*a commutative property

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