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3 years ago

Express each ratio as a fraction in lowest terms.

1 answer:

6 0

1. 5/6
2. 7/1
3. 1/7
Just write the first number as the numerator and the second one as a denominator then divide by their common factors

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In a chess club the probability that Shaun will beat Mike is 3/8 .

romanna [79]

Answer:

$\frac{10}{56} = 0.1786$ probability that Shaun loses both games

Step-by-step explanation:

Games are independent, so we find each separate probability, and multiply them.

In a chess club the probability that Shaun will beat Mike is 3/8.

So $1 - \frac{3}{8} = \frac{8}{8} - \frac{3}{8} = \frac{5}{8}$ probability that Shaun loses.

The probability that Shaun will beat Tim is 5/7 .

So $1 - \frac{5}{7} = \frac{2}{7}$ probability that Shaun loses.

What is the probability that Shaun loses both games?

This is:

$p = \frac{5}{8} \times \frac{2}{7} = \frac{5*2}{8*7} = \frac{10}{56} = 0.1786$

$\frac{10}{56} = 0.1786$ probability that Shaun loses both games

3 0

3 years ago

(-4) (-4) rewrite expression use exponent rather then repeating multiplication

vekshin1

Answer:4^2 or (-4)^2

Step-by-step explanation:

I don't really know how to explain it. I can try if you want

4 0

3 years ago

If the average grade of an English class rose from 70 to 85, what is the approximate percent increase?

FrozenT [24]

Answer:

The correct answer is actually around 21%. Are you sure the question wasn't asking what the approximate percent decrease from 85 to 70 was? Because in that case it would be around 17%.

Step-by-step explanation:

6 0

3 years ago

Natalie went to a store that was advertising 20% off all listed prices. If she wanted to buy an item priced at $40, how much wou

yarga [219]

Answer: 40.84

Step-by-step explanation:

6 0

3 years ago

-5 1/2 as an improper fraction

Rudik [331]

-11/2
Multiply 5 and 2, then add 1
-11/2, Hope this helps!

6 0

3 years ago