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2 years ago

A ribbon is 4 m long. How many pieces each 30 cm long can be cut from the ribbon?

Mathematics

2 answers:

Simora [160]2 years ago

7 0

Answer:

Step-by-step explanation:

4 meters is equal to 400 centimeters.

400/30 = 13 1/3

You don't want partial pieces, so your answer is 13

EleoNora [17]2 years ago

5 0

Answer:

13 pieces

Step-by-step explanation:

First we convert 4m into cm :

1m = 100cm

4m = 400cm

Now we need to figure out how many 30s go into 400 :

400 ÷ 30 = 13 remainder 10

So 13 pieces can be cut from the ribbon

Hope this helped and have a good day

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Answer: a. 0.40 b. 0.23 c . 0.435 d . 0.25

Step-by-step explanation:

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high low

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a) Total skin samples has low melanin content = 10+30=40

P(A)= $\dfrac{40}{100}=0.40$

b) Total skin samples has high moisture content = 13+10=23

P(B) = $\dfrac{23}{100}=0.23$

c) A ∩ B = Total skin samples has both low melanin content and high moisture content =10

P(A ∩ B) = $\dfrac{10}{100}=0.10$

Using conditional probability formula , $P (A|B)=\dfrac{P(A\cap B)}{P(B)}$

$P (A|B)=\dfrac{0.10}{0.23}=0.434782608696\approx0.435$

d) $P (B|A)=\dfrac{P(A\cap B)}{P(A)}$

$P (B|A)=\dfrac{0.10}{0.40}=0.25$

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3 years ago

A rectangle has an area of 18cm^2. The lengths of the sides are whole numbers. How long can each of the sides be? Give all the e

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Answer:

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Factors of 18 =

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Step-by-step explanation:

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2 years ago

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salantis [7]

Answer:

Step-by-step explanation:

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Read 2 more answers

A ribbon is 4 m long. How many pieces each 30 cm long can be cut from the ribbon?​

A ribbon is 4 m long. How many pieces each 30 cm long can be cut from the ribbon?