Question

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5. Answer the following questions.
a. Verify the associative and distributive property of integers with
b
respect to multiplication for the values of a, b and c given in the table.
-6 7.
4. -9
A unit test consisting of 15 questions was held in a class. Three
-5
marks were given for each correct answer and (-1) mark for every
-21 -12 5
incorrect answer. Also, for those questions that were attempted, 1 mark was given.
What is Liva's score if she attempted only 10 questions?
ii. James gets 8 incorrect and 7 correct answers. What is his score?
iii. Syria gets 6 correct and 5 incorrect answers. She also attempts the remaining
questions. Calculate her score.
A process in pharmaceuticals requires the room temperature to be lowered from 28°C
at the rate of 4°C per hour. What would be the room temperature attained in 9 hours
after the process has begun?
d. A housewife along with a group of ladies sold bags of different sizes. She earns a profit
of 325 on a purse and a loss of 20 on a vanity bag sold.
i. She received an order of 1050 vanity bags and 1000 purses. What is her profit or loss?
ii. How many purses must she sell to have neither profit nor loss, if the number of
vanity bags sold is 750?
iii. How much profit/loss did she make in selling 325 purses and 513 vanity bags?
c.​

Answer 1

Answer:

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