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3 years ago

7

Zach's chemistry textbook weighs 2/3 of a pound and his geometry textbook weighs 1/3 of a pound. How much more does the chemistr

y textbook weigh than the geometry textbook?

1 answer:

gizmo_the_mogwai [7]3 years ago

5 0

2/3 lb. - 1/3 lb. = 1/3 lb.
check: 1/3 lb. + 1/3 lb. = 2/3lb
ANSWER 》1/3 lb. MORE

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emmasim [6.3K]

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Step-by-step explanation: You solve -3(1+6r)+12=14

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notsponge [240]

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3 years ago

Sandra used partial products to find the product of 438 × 17 by multiplying 438 by 1 and 438 by 7 to get 3,066. Find the product

boyakko [2]

Let us determine the product of 438 and 17 by partial products.

Consider $438 = 400+30+8$

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So, $438 \times 17 = (400+30+8) \times (10+7)$

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Therefore, the product of 438 and 17 is 7446.

No, Sandra's answer is not correct.

Because she should have expressed 17 as (10+7), then if she multiplied (438 by 10) and (438 by 7). And, then added the results.Then her answer would be correct.

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3 years ago