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4 years ago

18 cm distance on map 120 m distance in real life Scale

Mathematics

1 answer:

lubasha [3.4K]4 years ago

8 0

Answer:

1:1500

Step-by-step explanation:

Scale distance = 18cm : 120 m = 18cm : 12000cm

Now, write this in the form of 1:n

18:12000 = 1:1500

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What’s the awnser is need it now

sergij07 [2.7K]

Answer:

Step-by-step explanation:

The only side that you dont have to use the Pythagorean theorem is LQ and that measure is 2. So A is the correct answer.

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3 years ago

Sinea wants to spend money using the same ratios as on her last trip to the car nivel. If she spends $26 on games,how much will

skelet666 [1.2K]

Answer:

A. Sinea spends $26 on games, she wants to keep the same ratio, how much does she spend on souvenirs?

A- (snacks- 16.25) (games- 26) (souvenirs- 39)

B. Ren spends $5 on souvenirs, he wants to keep the same ratio, how much does he spend on snacks

B- (snacks- 2.5) (games- 2) (souvenirs- 5)

C. Both spend $40 on snacks, they want to keep their original ratio, who spends more on souvenirs?

C. Ratios

Sinea- (snacks- 40) (game- 64) (souvenirs- 96)

Ren- (snacks- 40) (game- 32) (souvenirs- 80)

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3 years ago

What is 3/50 as a percent?

Lorico [155]

You divide 3/50 which gives you 0.06. Multiply 0.06 by 100 and it is 6. The answer would be 6%.

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3 years ago

Read 2 more answers

What is 30 percent markdowns of 776

valina [46]

Answer:

25.86

Step-by-step explanation:

776/30=25.86

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4 years ago

The x-values below are hours spent studying, and the y-values are grades on a test. What is the Pearson product-moment correlati

steposvetlana [31]

Answer:

The Pearson product-moment correlation coefficient is $r = 0.9556$

Step-by-step explanation:

The Pearson product-moment correlation coefficient (PMCC) is a numerical value between -1 and 1 that expresses the strength of the linear relationship between two variables.When r is closer to 1 it indicates a strong positive relationship. A value of 0 indicates that there is no relationship. Values close to -1 signal a strong negative relationship between the two variables.

To find the PMCC of the following data, you must:

$\begin{array}{c|ccccc}X&3.2&3&1&2.5&1.9\\Y&90&88&57&86&79\end{array}$

Step 1: Find $X\cdot Y$ , $X\cdot X$ and $Y\cdot Y$ as it was done in the table below.

Step 2: Find the sum of every column to get

$\sum{X}=11.6 ~,~ \sum{Y}=400 ~,~ \sum{X \cdot Y}=974.1 ~,~ \sum{X^2}=30.1 ~,~ \sum{Y^2}=32730$

Step 3: Use the following formula to find the PMCC.

$\begin{aligned}r~&=~\frac{n\cdot\sum{XY} - \sum{X}\cdot\sum{Y}} {\sqrt{\left[n \sum{X^2}-\left(\sum{X}\right)^2\right] \cdot \left[n \sum{Y^2}-\left(\sum{Y}\right)^2\right]}} \\r~&=~\frac{ 5 \cdot 974.1 - 11.6 \cdot 400 } {\sqrt{\left[ 5 \cdot 30.1 - 11.6^2 \right] \cdot \left[ 5 \cdot 32730 - 400^2 \right] }} \approx 0.9556\end{aligned}$

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3 years ago