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3 years ago

6

John and 3 friends are going out for pizza for lunch. They split one pizza and 4 large drinks. The pizza cost $12.50. They spend

a total of $17.50. Find the cost of one large drink.

1 answer:

gladu [14]3 years ago

8 0

The answer is $1.25 a large drink

Because 17.5 - 12.5 = 5 / 4 = $1.25

I hope this helps

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4 years ago

6. Find the values for each of the following: a. 3 times 5 in Z1o b. 3 times 5 in Zs c. 3 times 5 in Z3 e. 5 3 in Z1o

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Answer: The calculations are done below.

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Therefore, we get

$3\times5=15(\textup{mod}10)=5.$

(B) 3 times 5 in $\mathbb{Z}_{5}.$

We know that

$\mathbb{Z}_{5}=\{0,1,2,3,4\}(\textup{mod}5).$

Therefore, we get

$3\times5=15(\textup{mod}5)=0.$

(C) 3 times 5 in $\mathbb{Z}_{3}.$

We know that

$\mathbb{Z}_{3}=\{0,1,2\}(\textup{mod}3).$

Therefore, we get

$3\times5=15(\textup{mod}3)=0.$

(D) 5 times 3 in $\mathbb{Z}_{10}.$

We know that

$\mathbb{Z}_{10}=\{0,1,2,3,4,5,6,7,8,9\}(\textup{mod}10).$

Therefore, we get

$5\times3=15(\textup{mod}10)=5.$

Thus, the required values are evaluated.

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3 years ago