All categories

3 years ago

Max is x years . Brother is 8 years older , sister is 12 years younger.total age.is 50 years.how old are they ?

Mathematics

2 answers:

Pani-rosa [81]3 years ago

8 0

Answer:

Step-by-step explanation:

12 + 8 = 20 so that means 50-20= 30 so max is 30 years old

azamat3 years ago

3 0

X+8=b
x-12=s
X+b+s=50 then
x+x+8+x-12=50
So 3x-4=50
Then 3x=54
So x=18
Then the brother is 26 and the sister is 6
Check 26+18+6=50

You might be interested in

For the graphed function f(x) = (4)x − 1 + 2, calculate the average rate of change from x = 1 to x = 2.

lorasvet [3.4K]

Average rate of the function: 3

Step-by-step explanation:

The function in this problem is

$f(x)=4^{x-1}+2$

The average rate of change of a function over an interval $(x_1,x_2)$ is given by

$r=\frac{f(x_2)-f(x_1)}{x_2-x_1}$

where

$f(x_1),f(x_2)$ are the values of the function calculated in $x_1,x_2$ respectively

For the function in this problem we have:

$x_1=1$ , so

$f(x_1)=f(1)=4^{1-1}+2=4^0+2=1+2=3$

$x_2=2$ , so

$f(x_2)=f(2)=4^{2-1}+2=4^1+2=4+2=6$

So, the average rate of change is

$r=\frac{6-3}{2-1}=\frac{3}{1}=3$

Learn more about rate of change:

brainly.com/question/4152194

brainly.com/question/12941985

#LearnwithBrainly

4 0

3 years ago

A bag contains 4 red marbles, 5 yellow marbles, and 6 blue marbles. three marbles are to be picked out randomly (without replace

gayaneshka [121]

A 50 50 percent , I think

6 0

3 years ago

What is the measure of e?

ValentinkaMS [17]

Answer:

$\theta = 4~radians$

Step-by-step explanation:

$s = \theta r$

$20~cm = \theta \times 5~cm$

$\theta = 4~radians$

4 0

3 years ago

Consider the equation 3p-7+p=13

GarryVolchara [31]

Answer:

p=5

Step-by-step explanation:

3p-7+p=13

Add like terms.

3p+p-7=13

4p-7=13

Add 7 to both sides.

4p-7+7=13+7

4p=20

Divide 4 from both sides.

$\frac{4p}{4}$ = $\frac{20}{4}$

p=5

Hope this helps!

If not, I am sorry.

3 0

2 years ago

Simplify the variable expression.<br> 13. (5)(-x)

Travka [436]

Step-by-step explanation:

(5)(-x)

= -5x

multiply both and put the minus /(-) there

4 0

3 years ago