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3 years ago

Write an expression that can be used to multiply 6 x 198 mentally? please answer thanks!

Mathematics

2 answers:

maxonik [38]3 years ago

8 0

<span>Assuming you meant 6 x 198... Do a mental sum for 6 x 200 (1200) then subtract 6
</span>

valkas [14]3 years ago

3 0

-6 x 2 + 6 x 200. Since you want to find out 6 multiplied by 198 the easiest way (for me) would be to round it and then substract 12 since 200-198 is equal to 2 and 6 x 2 is equal to 12

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Answer:

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Step-by-step explanation:

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3 years ago

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alexgriva [62]

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vladimir1956 [14]

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So we shall divide the total toys assembled by the total hours.

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Hence the number of toys assembled per hour per person

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3 years ago

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Step-by-step explanation:

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Katyanochek1 [597]

Please consider the attached graph.

We have been given that there are two different models of the same triangular-shaped garden. The height of the model on the left is 14 cm. We are asked to find the height of the model.

First of all, we will convert 14 cm into feet.

We can see that model on left side has a scale of 1 cm is equal to 15 feet.

14 cm = 14×15 feet = 210 feet.

We can see that model on the right side has a scale of 1 cm is equal to 7.5 feet.

Since both models represent same triangular-shaped garden, so the actual height for the both models will be same.

Now we need to convert actual height of 210 feet into inches using 2nd scale.

$\text{210 ft}=210\text{ ft}\times \frac{1\text{ inch}}{\text{7.5 ft}}=\frac{210}{7.5}\text{ inch}=28\text{ inch}$

Therefore, the height of the model on right is 28 inches.

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3 years ago