All categories

2 years ago

When do you need to use two number lines to compare two fractions

Mathematics

2 answers:

ArbitrLikvidat [17]2 years ago

8 0

To see which one is bigger when comparing it

notka56 [123]2 years ago

7 0

You would use 2 number lines to compare fractions because if you were trying to see which fraction was larger than you would use a number line.

You might be interested in

If 2 out of 36 people applaud, and 10 people in a concert hall are applauding, how many people are in the concert hall?

solmaris [256]

46 people are in the concert hall

3 0

3 years ago

Read 2 more answers

Solve each system by substitution <br><br> 4y - 6 = 2x<br> y- 3x=9

ArbitrLikvidat [17]

X = -3, y = 0 i think

6 0

3 years ago

Read 2 more answers

A college-entrance exam is designed so that scores are normally distributed with a mean of 500 and a standard deviation of 100.

yawa3891 [41]

Answer:

The probability is 0.003

Step-by-step explanation:

We know that the average $\mu$ is:

$\mu=500$

The standard deviation $\sigma$ is:

$\sigma=100$

The Z-score is:

$Z=\frac{x-\mu}{\sigma}$

We seek to find

$P(x800)$

For P(x>800) The Z-score is:

$Z=\frac{x-\mu}{\sigma}$

$Z=\frac{800-500}{100}$

$Z=3$

The score of Z = 3 means that 800 is 3 standard deviations from the mean. Then by the rule of the 8 parts of the normal curve, the area that satisfies the conficion of 3 deviations from the mean has percentage of 0.15%

$P(x>800)=0.15\%$

For P(x<200) The Z-score is:

$Z=\frac{x-\mu}{\sigma}$

$Z=\frac{200-500}{100}$

$Z=-3$

The score of Z = -3 means that 200 is 3 standard deviations from the mean. Then by the rule of the 8 parts of the normal curve, the area that satisfies the conficion of 3 deviations from the mean has percentage of 0.15%

$P(x$