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2 years ago

Please help! Will give brainiest if correct

Mathematics

1 answer:

EastWind [94]2 years ago

4 0

Answer:

Step-by-step explanation:

First Choice

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Si una llave vierte 6 1/3 litros de agua por minuto, ¿cuánto tiempo tardará en llenar un depósito de 88 2/3 litros de capacidad?

Ierofanga [76]

Answer: 14 minutes

Step-by-step explanation:

Given: A tap pours $6\dfrac13$ liters of water per minute.

To find : Time taken to fill an $88 \dfrac23$ liters capacity tank.

which is given by :-

Time = $88 \dfrac23\div 6\dfrac13$ minutes

$=\dfrac{3\times88+2}{3}\div\dfrac{3\times6+1}{3}$ minutes

$=\dfrac{266}{3}\div \dfrac{19}{3}$ minutes

$=\dfrac{266}{3}\times\dfrac{3}{19}$ minutes

$=\dfrac{266}{19}=14\text{ minutes}$

Hence, it will take 14 minutes to fill an $88 \dfrac23$ liters capacity tank.

6 0

3 years ago

How to write 0.59 in expanded form

NeX [460]

Fifty nine hundredths

7 0

3 years ago

The table shows the age, in years, of employees in a company.

joja [24]

Answer:

a) The modal class for this case represent the class with the highest frequency

And for this case would be $24$ with the highest frequency 8

b) $\bar X = \frac{19*3 + 21*2 + 23*7 +25*8}{3+2+7+8} =23$

Step-by-step explanation:

Part a

The modal class for this case represent the class with the highest frequency

And for this case would be $24$ with the highest frequency 8

Part b

For this case we need to find the mid point of each interval:

Interval Midpoint Frequency

18-20 19 3

20-22 21 2

22-24 23 7

24-26 25 8

And we can find the sample mean with this formula:

$\bar X = \frac{\sum_{i=1}^n f_i x_i}{n}$

And replacing we got:

$\bar X = \frac{19*3 + 21*2 + 23*7 +25*8}{3+2+7+8} =23$

4 0

3 years ago

A car is traveling at a speed of 45 kilometers per hour. What is the car's speed in kilometers per minute? How many kilometers w

oee [108]

Answer:

24 kilometers

Step-by-step explanation:

1.2 kilometers per minute; 12 kilometers

Step-by-step explanation:

We know that 60 minutes makes 1 hour.

Therefore, to convert the speed to kilometers per minute, we simply divide 72 kilometers per hour by 60 minutes:

72 / 60 = 1.2 kilometers per minute.

Distance is given as speed multiplied by time.

Therefore, in 10 mins, the car travels:

1.2 * 20 = 24 kilometers.

7 0

3 years ago

What is the answer to this?

Leya [2.2K]

$\huge\bold\purple{2/3:}$

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3 years ago