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pav-90 [236]
3 years ago
12

A log is 20 m long, correct to the nearest metre.

Mathematics
1 answer:
Marat540 [252]3 years ago
4 0

Answer:

222 fence posts

Step-by-step explanation:

Since the log is 20 m long, correct to the nearest metre and has to be cut into fence posts which must be 90 cm long, correct  to the nearest 10 centimetres, there can be x fence posts 90 cm long.

So, we have x × 90 cm = 20 m

x × 0.9 m = 20 m

x = 20 m/0.9 m

x = 222.22

x ≅ 222 fence posts

So, the largest number of fence posts that can possibly be cut from the log is 222 fence posts.

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3 years ago
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Answer:

Hello!

After reading the question you have provided I have come up with the correct numerical expression:

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Step-by-step explanation:

To come up with this solution you need to keep in mind some of the terminoloy being used.

The word "subtract" comes from the action of subtraction

The word "product" comes from the action of multiplication

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Then, you add in the last part of "subract 1" from the "product of 4 and 5":

4x5-1

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You always need to keep the multiplication portion of the equation in front of any subtraction, or addition in any given equation.

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