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3 years ago

What is the average height of a 13 year old boy?

Mathematics

1 answer:

olga2289 [7]3 years ago

7 0

62 inches / 175 cm, plus or minus about 2.5 inches (6.5 cm).c

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A bottle contains 255 coins. 1/3 of the coins are ?1.00. 110 of the coins are 50p coins. the rest are 20p coins. work out the to

aliina [53]

Answer:

£152.

Step-by-step explanation:

We have been given that a bottle contains 255 coins. 1/3 of the coins are £1.00.

Let us find 1/3 of 255 to find the number of £1 coins.

$\£1\text{ coins}=\frac{1}{3}\times 255$

$\£1\text{ coins}=85$

This means we have £85.

We are also told that 110 of the coins are 50 p coins.

$\text{Value of 50 p coins}=\£0.50\times 110$

$\text{Value of 50 p coins}=\£55$

Let us figure out number of 20 p coins by subtracting the number of £1 coins and 50 p coins from 255.

$\text{Number of 20 p coins}=255-(85+110)$

$\text{Number of 20 p coins}=255-(195)$

$\text{Number of 20 p coins}=60$

$\text{Value of 20 p coins}=\£0.20\times 60$

$\text{Value of 20 p coins}=\£12$

Now let us find total value of the coins contained in the bottle by adding the values of £1 coins, 50 p coins and 20 p coins.

$\text{The total value of the coins}=\£85+\£55+\£12$

$\text{The total value of the coins}=\£152$

Therefore, the total value of the coins contained in the bottle is £152.

4 0

3 years ago

Read 2 more answers

A wise man once said "300 reduced by 3 times my age is 138"

Nonamiya [84]

The equation is 138=300-3x
now solve by first subtracting 300 from each side: -162=-3x
divide each side by -3: x=54
The wise man is 54 years old

7 0

4 years ago

SOMEONE HELP QUESTION 1 PLZZZZO

leva [86]

Answer:

A) 370

Explanation:

5 0

3 years ago

I need help! Really bad a math.

ankoles [38]

$\\ \sf\longmapsto h(-18)$

$\\ \sf\longmapsto 15+\dfrac{-18}{6}$

$\\ \sf\longmapsto 15+(-3)$

$\\ \sf\longmapsto 15-3$

$\\ \sf\longmapsto 12$

5 0

3 years ago

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Rochelle invests in 500 shares of stock in the fund shown below. name of fund nav offer price hat mid-cap $18.94 $19.14 rochelle

Naddik [55]

Data:

<span>Number of shares: 500

name of fund nav offer price
hat mid-cap $18.94 $19.14

Profit $6,250.

1) Investment = number of shares * offer price = <em />500 * $ 19.14 = $ 9570

2) Total net value = profit + investment = $6250 + $9570 = $15820

3) NAV = total net value / number of shares = $15820 / 500 = $31.64

Answer: option c: 31.64
</span>

5 0

3 years ago

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