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2 years ago

What is 7x + 10 = 7x + 10

Mathematics

2 answers:

olya-2409 [2.1K]2 years ago

7 0

Answer:

infinite solutions

Step-by-step explanation:

bezimeni [28]2 years ago

4 0

Answer:

Infinite solitutions

Step-by-step explanation:

The expressions are the exact same, so there are infinite solutions.

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Write this into a equation

solniwko [45]

Let the number be 'x'.

Three times a number will then give 3x
Therefore the equation will be:
$3x - 4 = 5$

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What is a null set ?

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2 years ago

Monica has walked 3/2 miles in 2/3 of an hour. How many miles can Monica walk in one hour?

defon

Answer:

2.25 Miles is how many miles Monica can walk in one hour.

Step-by-step explanation:

You take 3/2 which is 1.5 in decimal form then take the 2 out of 2/3 divide 1.5 by 2, you get 0.75 then you add 0.75 to 1.5 and you get 2.25 which is how many miles she walks in one hour.

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1 year ago

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MaRussiya [10]

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1 year ago

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A sign on the pumps at a gas station encourages customers to have their oil checked, and claims that one out of 10 cars needs to

Archy [21]

Answer:

0.2916, 0.1488, 0.0319

Step-by-step explanation:

Given that a sign on the pumps at a gas station encourages customers to have their oil checked, and claims that one out of 10 cars needs to have oil added.

Since each trial is independent there is a constant probability for any random car to need oil is 0.10

Let X be the number of cars that need oil

A) Here X is BIN(4,0.1)

$P(X=1) = 4C1(0.1)(0.9)^3 \\= 0.2916$

B) Here X is Bin (8, 0.1)

$P(x=2) = 8C2 (0.1)^2 (0.9)^6\\\\=0.1488$

C) Here X is Bin (20,5)

$P(x=5) = 20C5 (0.1)^5 (0.9)^{15} \\=0.0319$

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2 years ago