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3 years ago

What is the answer to (( 5 x 12)/3)+30-50

Mathematics

2 answers:

SpyIntel [72]3 years ago

8 0

I believe the correct answer is 0

Step-by-step explanation:

To solve this question, we use an abbreviation formula called BODMAS which is:

B = Brackets

O = Of

D = Division

M = Multiplication

A = Addition

S = Subtraction

We solve each element that is available in the order of the abbreviated letter.

1. We solve the brackets:

$(5\times12) = 60$

2. We solve the second bracket:

$(60\div3) = 20$

The equation now is $20+30-50$

3. We now solve addition first:

$20+30=50$

4. Now we solve the subtraction:

$50-50=0$

The answer then = 0

Pavlova-9 [17]3 years ago

8 0

Answer:

The value of given expression is 0.

Step-by-step explanation:

We have to evaluate the given expression:

$\bigg(\displaystyle\frac{(5\times 12)}{3}\bigg)+30-50$

We use the BODMAS rule to evaluate the given expression.

B-Bracket

O-of

D-Division

M-Multiplication

A-Addition

S-Subtraction

$\bigg(\displaystyle\frac{(5\times 12)}{3}\bigg)+30-50\\\\=\bigg(\displaystyle\frac{60}{3}\bigg)+30-50\\\\=20+30-50\\\\=50-50\\\\=0$

The value of expression is 0.

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Step-by-step explanation:

We are given that the distribution of intraocular pressure in the general population is approximately normal with mean 16 mm Hg and standard deviation 3 mm Hg.

Let X = intraocular pressure in the general population

So, X ~ Normal( $\mu=16,\sigma^{2} = 3^{2}$ )

The z score probability distribution for normal distribution is given by;

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P(X < 12) = P( $\frac{ X-\mu}{\sigma } }$ < $\frac{ 12-16}{3 } }$ ) = P(Z < -1.33) = 1 - P(Z $\leq$ 1.33)

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The above probability is calculated by looking at the value of x = 1.33 in the z table which has an area of 0.9082.

(b) We have to find that 80% of adults in the general population have an intraocular pressure that is greater than how many mm Hg, that means;

P(X > x) = 0.80 {where x is the required intraocular pressure}

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x = 16 - 2.53 = 13.47 mm Hg

Therefore, 80% of adults in the general population have an intraocular pressure that is greater than 13.47 mm Hg.

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