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anygoal [31]
3 years ago
9

Una familia está conformada por el padre, la madre, el hijo y la hija, el padre tiene el doble de la edad del hijo, la madre tie

ne 6 años menos que el padre, la hija tiene 5 años más que el hijo. sumando sus edades dan 106. calcular que edad tienen cada uno.
Mathematics
2 answers:
Jlenok [28]3 years ago
8 0

Answer:

PADRE=36 AÑOS - MADRE=30 AÑOS - HIJA=23 AÑOS - HIJO= 18 AÑOS

Mariulka [41]3 years ago
3 0

Answer:

Step-by-step explanation:

First off, this wouldn't make sense for a girl to be older than her mother or her father.

Second, mother is x years old. The girl is 2x years old. The father is x+5 years old. Total sum = 100.

So, we need to solve for x first.

2x + x + x+5 = 100

4x + 5 = 100

4x = 95

4x ÷ 4 = 95 ÷ 4

x = 23.75

Mother is 23 and 3 quarters, turning 24.

Daughter is 23.75 × 2 = 47 1/2 years old.

And the Father is 28 and 3 quarters, turning 29.

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Charra [1.4K]
The answer is the second option given
6 0
3 years ago
Please answer this asap!
777dan777 [17]
This is an exponential equation that can be represented by the following:

f(x) = a(b)^x

In this case...

25143 = a(0.66)^3

25143 is the population after 3 hours.

3 is the amount of time in hours.

0.66 represents the percent of the population remaining after each hour (66% as there is a 34% decline each hour).

We must solve for a, which is the initial population.

First, simplify (0.66)^3 to 0.2874.

25143 = 0.2874a

Now divide both sides by 0.2874 to isolate a.

a = 87455

There were initially 87,455 people within the city. I wouldn't want to be in that place!
7 0
3 years ago
Can you identify these numbers as rational or irrational. Please explain.<br><br> -√127 and 291.87
irina [24]
An irrational number/value is one you cannot express in terms of a ration, or a fraction, it cannot be written as fraction

now 291.87... is simple, two decimals, so you use two zeros at the botom and end up with \bf \cfrac{29187}{100} and boom, there you are, a fraction, nice and dandy

now, let's see the first one -√(127)  well, low and behold, 127 is a prime number, and and thus is has no two factors that'd serve as root, so, there's no rational root that'd give that, that makes it irrational
8 0
3 years ago
Need help for question 8 and 9. I need the equation that’s passes through the points!
dsp73

Answer:

Step-by-step explanation:

Question 8

Let the equation of a line passing through two points (x_1,y_1) and (x_2,y_2) is given by,

y = mx + b

Here, m = slope and y-intercept = b

Since, m = \frac{y_2-y_1}{x_2-x_1}

For two points (1, 4) and (5, 8),

m = \frac{8-4}{5-1}

m = 1

Equation will be,

y = (1)x + b

y = x + b

Since, this line passes through (1, 4),

4 = 1 + b

b = 3

Therefore, equation of the line will be,

y = x + 3

Question 9

Let the equation is y = mx + b

m = \frac{y_2-y_1}{x_2-x_1}

For two points (2, 10) and (6, 4)

m = \frac{10-4}{2-6}

m = -\frac{3}{2}

By substituting the value of 'm' in the equation,

y = -\frac{3}{2}x+b

Since, this line passes through (2, 10)

10 = -\frac{3}{2}(2)+b

b = 10 + 2

b = 12

Therefore, equation of the line will be,

y=-\frac{3}{2}x+12

4 0
3 years ago
6y + 4 – 3y = -5 + y + 17
Luda [366]

Answer:

Step-by-step explanation:

6y+4-3y=-5+y+17

6y-3y-y= -5+17-4

2y=8

y=4

5 0
3 years ago
Read 2 more answers
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