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3 years ago

In a school there are 880 pupils if 3 /5 are boys how many are girls

Mathematics

1 answer:

Olenka [21]3 years ago

6 0

Answer:

352 are girls

Step-by-step explanation:

1. 880/5=176

2. 176*3=528

3. 880-528= 352

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NEED HELP ASAP!! WILL GIVE BRAINLIST IF CORRECT

cupoosta [38]

Answer:

1385.28 m²

Step-by-step explanation:

apothem = √16² - 8² = √256 - 64 = √192 = 13.86

Base area = 3 x 16 x 13.86 = 665.28

6 side area = 3 x 16 x 15 = 720

surface area = 665.28 + 720 =1385.28

4 0

3 years ago

Identify the situation that involves opposite quantities adding up to zero Climbing up 6 feet and climbing down 4 feet Hiking 10

ivolga24 [154]

9514 1404 393

Answer:

(b) Hiking 10 feet due north, then hiking 10 feet due south

Step-by-step explanation:

Any pair of numbers that totals zero will be a pair of opposites. The offered choices are ...

+6 -4 = 2 . . . not zero

+10 -10 = 0

+2 -3 = -1 . . . not zero

+5 -3 = 2 . . . not zero

Hiking 10 feet due north, then hiking 10 feet due south is a situation involving opposite numbers adding up to zero.

3 0

3 years ago

X^{2} +5x+6<br> <img src="https://tex.z-dn.net/?f=x%5E%7B2%7D%20%2B5x%2B6" id="TexFormula1" title="x^{2} +5x+6" alt="x^{2} +5x+6

Anna71 [15]

Answer: No answer

Step-by-step explanation:

You can calculate for x, because the equation isn't equal to anything.

4 0

1 year ago

Engineers want to design seats in commercial aircraft so that they are wide enough to fit 9090% of all males. (Accommodating 1

Molodets [167]

Answer:

Hip breadths less than or equal to 16.1 in. includes 90% of the males.

Step-by-step explanation:

We are given the following information in the question:

Mean, μ = 14.5

Standard Deviation, σ = 1.2

We are given that the distribution of hip breadths is a bell shaped distribution that is a normal distribution.

Formula:

$z_{score} = \displaystyle\frac{x-\mu}{\sigma}$

We have to find the value of x such that the probability is 0.10.

P(X > x)

$P( X > x) = P( z > \displaystyle\frac{x - 14.5}{1.2})=0.10$

$= 1 -P( z \leq \displaystyle\frac{x - 14.5}{1.2})=0.10$

$=P( z \leq \displaystyle\frac{x - 14.5}{1.2})=0.90$

Calculation the value from standard normal z table, we have,

$P(z < 1.282) = 0.90$

$\displaystyle\frac{x - 14.5}{1.2} = 1.282\\x = 16.0384 \approx 16.1$

Hence, hip breadth of 16.1 in. separates the smallest 90% from the largest 10%.

That is hip breaths greater than 16.1 in. lies in the larger 10%.

4 0

3 years ago

If an equation is an identity, then how many solutions does it have?

Alona [7]

Since they are the same, any change made to 1 will be the same in the other, resulting in infinite solutions.

7 0

3 years ago

Read 2 more answers