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3 years ago

11

A bag contains pieces of paper numbered from 5 to 9. A piece of paper is drawn at random. What is the theoretical probability of

drawing a number less than 8?

1 answer:

NeTakaya3 years ago

8 0

Answer: 3/5 probability of choosing a number LESS THAN 8

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Tara ran the 1600 M event at a constant speed in 5 minutes and 20 seconds. what was her speed

ollegr [7]

5 m/sec or 300m / min

using speed = $\frac{distance}{time}$

change 5 min 20 sec to seconds = (5 × 60) + 20 = 320 sec

speed = $\frac{1600}{320}$ = 5m / second or

speed = 60 × 5 = 300m / minute

4 0

3 years ago

Tran jumped 162 times in 9 hours. At that rate, how many times would<br> she jump in 10 minutes?

yawa3891 [41]

Answer:

3

Step-by-step explanation:

you first need to convert 9 hours into minutes:

9*60=<u>5</u><u>4</u><u>0</u> minutes

162 jumps ---in--- 540 minutes

? jumps ---in--- 10 minutes

?= (10*162)/540

?= 3

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2 years ago

The arch of a bridge forms the upper half of an ellipse. The arch is 6 meters above the 20-meter-wide river. Write an equation f

aksik [14]

Answer:

$\frac{x^2}{36} + \frac{y^2}{100} = 1$

Step-by-step explanation:

Required

The equation of the ellipse

This is calculated as:

$\frac{x^2}{a^2} + \frac{y^2}{b^2} = 1$

Where:

$b =6$ ---- height

$a = 0.5 * 20 =10$ --- width

So:

$\frac{x^2}{a^2} + \frac{y^2}{b^2} = 1$

$\frac{x^2}{6^2} + \frac{y^2}{10^2} = 1$

$\frac{x^2}{36} + \frac{y^2}{100} = 1$

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2 years ago

1. The difference of five times a number and 6 is -2.

OlgaM077 [116]

Answer:

13

Step-by-step explanation:

5-x+6=-2

X=13

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