3 years ago

Can you explain why estimation can sometimes be helpful when multiplying decimals?

1 answer:

8 0

Estimation is a quick way to get an approximate result. If all you need is an idea of what the product is, then estimation may be helpful.

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Find the number of positive integral solutions of ABC=45.

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45=1×5×9 so 45×1×1=45. 5×9×1=45. 9×5×1=45. 45×1×1=45 .and ,then 1×5×9=45 sooo if ABC are treated as identical variables number of solutions can be those 5 steps about to find all the number of positive integral solutions ...

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3 years ago

Can you answer the first question for me

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All are true except d

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1. There are two differnt maps of Ohio. The scale on the first map is 1 cm to 10 km. The distance from Cleveland to Cincinnati i

xeze [42]

Answer:

1. 0.8 cm

2. 1.6 cm

Step-by-step explanation:

The scale for 2nd map is 1 cm to 50 km, that means "1 cm on map" is "50 km in real life".

We already know distance from Cleveland to Cincinnati is 40 km, which is less than 50, so we know the distance on map would be less than 1 cm.

So we set up ratio and figure out (let x be distance on map from Cleveland to Cincinnati):

$\frac{1}{50}=\frac{x}{40}\\50x=40\\x=\frac{40}{50}\\x=0.8$

Hene, 0.8 centimeters would be the distance in 2nd map

A scale of 1:50 means 1 cm equal 50 cm

So, 0.8m would be

0.8 * 100 = 80 cm

Hence, 80 cm would be represented by 80/50 on the map, that is:

$\frac{80}{50}=1.6$

That is 1.6 centimeters

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3 years ago

2) Show is fang steadily in Syracuse, New York. After 2 hours 4 inches of snow has fallen

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Answer:

y = 2x

48 inches of snow

Step-by-step explanation:

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3 years ago