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myrzilka [38]
2 years ago
10

Solve it ......

le" class="latex-formula">
Mathematics
2 answers:
o-na [289]2 years ago
8 0

            - - - - - - -- - - - - - - - - - -- - - - - - - - - - - - - - --

\blue\textsf{\textbf{Question:-}}}}

Solve 3x+4=28

\blue\textsf{\textbf{\underline{\underline{Answer and how to solve:-}}}}

First, subtract 4 on both sides:-

\tt{3x=28-4}

\tt{3x=24}

Divide by 3 on both sides:-

\dashrightarrow\bigstar\boxed{\boxed{\bold{x=8}}}\dashleftarrow

<h3>Good luck.</h3>

      - - - - -- -  -- - - - - - - - - - - -  - - -- - - - -  -- - - - - - - - - - - - - - - - - - - - - - -

zalisa [80]2 years ago
7 0

Now we have to,

Solve for the required value of x,

→ 3x + 4 = 28

→ 3x = 28 - 4

→ 3x = 24

→ x = 24/3

→ [ x = 8 ]

Hence, the value of x is 8.

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Answer:

238

85%of 280 is 238

Step-by-step explanation:

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Please help me with this.
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Answer:

3

Step-by-step explanation:

Parenthesis

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3^4 +9^2÷3^3-9^2

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3 years ago
Question 9 20% of a particular brand of light bulbs fail in one year. What is the probability that three bulbs out of a random c
Delvig [45]

Answer:

The correct answer is 0.15

Step-by-step explanation:

According to the given scenario, the probability is as follows:

X\sim Bin (n,p)

Here

n = 8

p = 0.20 or 20%

Now this is a binomial probability distribution

P(X) = ^nC_x \times p^x \tmes (1 - p)^{n-x}\\\\P(3) = ^8C_3 \tims 0.20^3 \times (1 - 0.20)^5

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5 0
3 years ago
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Ugo [173]
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3 0
3 years ago
In the United States, there are 59 different species of mammals that are endangered,
jolli1 [7]

Given Information:

Number of endangered mammal species = 59

Number of endangered bird species = 75

Number of endangered fish species = 68

Required Information:

Probability of either a  mammal or a fish = ?

Answer:

P(mammal or fish) = 127/202 = 0.6287 = 62.87%

Step-by-step explanation:

We want to randomly select one animal and find out the probability of either a mammal or a fish.

The total number of endangered species of animals is given by

Total animals = mammal species + bird species + fish species

Total animals = 59 + 75 + 68  = 202

The probability of selecting a endangered mammal is

P(mammal) = no. of endangered mammal/total no. of endangered animals

P(mammal) = 59/202

The probability of selecting a endangered fish is

P(fish) = no. of endangered fish/total no. of endangered animals

P(fish) = 68/202

Finally, the probability of selecting either a mammal or a fish is

P(mammal or fish) = 59/202 + 68/202

P(mammal or fish) = 127/202

P(mammal or fish) = 0.6287

P(mammal or fish) = 62.87%

8 0
3 years ago
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