3 years ago

How do you know when to use the Estimation strategy vs the Guess and Check strategy ?

1 answer:

6 0

The guessing strategy only works when you don’t u don’t understand a question so I advise you NOT to do it , only when it’s necessary but the Estimation strategy works when you don’t have a any but a answer where theirs decimals or a answer that is close to one another and can be rounded

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A florist has 49 red roses and 63 white roses. The florist wants to put an equal number of red roses in each centerpiece, along

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7..
49 can be equally divided by seven, which means there would be 9 red roses in each center piece. And 63 can be equally divided by 7 which means there would by 7 white roses in each center piece.
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3 years ago

Which expression is equivalent to 2(3g – 4) - (8g + 3)?

Brilliant_brown [7]

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Step-by-step explanation:

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3 years ago

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A plane flies at a steady rate of 40 mph while a second plane flies at a steady rate of 100 mph. The planes are 200 miles apart

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Answer:

$1\ \text{hour}\ 25\ \text{minutes and }12\ \text{seconds}$

Step-by-step explanation:

The combined distance that both planes will cover is 200 miles

Time taken by both planes will be the same (t)

$\text{Distance}=\text{Speed}\times \text{Time}$

So, the combined distance is

$40t+100t=200\\\Rightarrow 140t=200\\\Rightarrow t=\dfrac{200}{140}\\\Rightarrow t=1.42\ \text{hours}=1\ \text{hour}\ 25\ \text{minutes and }12\ \text{seconds}$