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gulaghasi [49]
3 years ago
8

El número misterioso: soy múltiplo de 3 y de 4 y estoy comprendido entre 30 y 99. El resto de mi división por 5 es 4. ¿Quién soy

?
Mathematics
1 answer:
MAVERICK [17]3 years ago
3 0

Answer:

84

Step-by-step explanation:

Let the number be x.

As the number is multiple of 3 and 4, so the number must be a multiple of the lowest common factor (LCM) of 3 and 4.

LCM(3,4)=12

So, the number, x, is a multiple of 12.

All the numbers between 30 and 99, which are multiples of 12 are 36, 48, 60, 72, 84, 96.

When x is divided by 5, the remainder is 4, so the unit digit of the number is 4.

Now, the number between 30 and 99, which is multiple of 12 and having the unit digit 4 is 84.

Hence, the required number is 84.

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Ipatiy [6.2K]
From the graph, it is obvious that the trend is decreasing from 100 on day 2, to 1 on day 10. So, the answer could either be A or C. The question would be how fast is it decreasing? To illustrate this, let's find the difference of consecutive data:

100 - 26 = 74
26 - 6 = 20
6 - 2=4
2-1=1

It must not be an additive rate because there is no common difference. Let's illustrate if the trend is in multiplicative rate:

100/26 = 3.85
26/6 = 4.33
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More or less, they have a common divider. Hence, the decreasing rate is in multiplicative rate. The answer is A.
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3 years ago
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Help!?Who can help me with this?
Sonbull [250]
What he/she said is correct
6 0
2 years ago
find the equation of a straight line passing through the point (3,3) which is perpendicular to the line y=-1/2x-4
Mars2501 [29]

Answer:

y = 2x - 3

Step-by-step explanation:

The equation of a line in slope- intercept form is

y = mx + c ( m is the slope and c the y- intercept )

y = - \frac{1}{2} x - 4 ← is in slope- intercept form

with slope m = - \frac{1}{2}

Given a line with slope m then the slope of a line perpendicular to it is

m_{perpendicular} = - \frac{1}{m} = - \frac{1}{-\frac{1}{2} } = 2, thus

y = 2x + c ← is the partial equation

To find c substitute (3, 3) into the partial equation

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3 years ago
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dangina [55]

Answer:

\large\boxed{C.\ 9\ inches\ squared}

Step-by-step explanation:

\text{Use}\\\\a^\frac{m}{n}=\sqrt[n]{a^m}\\\\a^n\cdot a^m=a^{n+m}\\-----------------\\\\length=\sqrt[3]{81}=\sqrt[3]{3^4}=3^\frac{4}{3}\\\\width=3^\frac{2}{3}\\\\\text{The area of a rectangle:}\ A=width\cdot length.\\\text{Substitute:}\\\\A=3^\frac{4}{3}\cdot3^\frac{2}{3}=3^{\frac{4}{3}+\frac{2}{3}}=3^{\frac{4+2}{3}}=3^\frac{6}{3}=3^2=9

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3 years ago
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