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2 years ago

Josh is going to choose a two digit number. What is the probability that the sum of the digits will be nine?

Mathematics

2 answers:

alukav5142 [94]2 years ago

8 0

The answer is 4/45 I believe so

stiv31 [10]2 years ago

6 0

Answer:

4/45

Step-by-step explanation:

First find all the pairs that make 9 that are two digit:

1+8

2+7

3+6

4+5

5+4

3+6

2+7

1+8

That's 8 pairs, and as there are 90 two digit numbers, 8/90 is the answer. but if you want to simplify, the answer is 4/45

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3 years ago

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Answer:

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Step-by-step explanation:

Difference quotient got by getting

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3 years ago

Sin(a+b).cos(a-b) = sinacosa + sinbcosb

Rainbow [258]

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3 years ago

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2 years ago

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Answer:

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Step-by-step explanation:

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3 years ago

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