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Yuri [45]
3 years ago
5

The Lee’s have three children. The oldest is twice as old as the youngest. The middle child is five years older than the younges

t. If the sum of the ages is 57, how old is each child?
Mathematics
2 answers:
makkiz [27]3 years ago
8 0
The answer is 13, 18, and 26.
WITCHER [35]3 years ago
5 0
The three children are x, 2x, and x+5
So set up an equation: x+2x+x+5=57
Solve: 4x=52 so x=13
So the ages are...

13, 18, 26

Check: 13+18+26=57
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Hey does anyone know all the numbers or just a few! It would be such a help if you do :)
wolverine [178]
(4,3) (-3,4)(-3,2)(-1,2)
8 0
2 years ago
A construction crew is extending the length of the center line on a highway. The length of the line starts out as 6 meters long,
baherus [9]
Gradient of line,m=(17-6)/(20-0)=11/20

finding equation of line using a point (20,17)

y-17=11/20(x-20)
y-17=(11/20x)-11
y=11/20x+(17-11)
y=(11/20)*x+6
4 0
3 years ago
Read 2 more answers
R * p = -37.8 <br>but also<br>r + p = 13.5<br><br>what would r be?<br>what would p be?
Nana76 [90]

R * p = -37.8


Solve for either R or p.


R = -37.8/p


Now plug into R + p = 13.5


-37.8/p + p = 13.5


Solve for p.


After finding p, plug your p-value into either R + p or R*p to find R.


Take it from here.




5 0
3 years ago
Read 2 more answers
A new car worth $20,000 loses 20% of its value every year. Is the value of the car represented by a linear or exponential functi
madreJ [45]
Exponential. 

One way to think about this, is to ask how much you will lose each year. The first year you're losing 20% of $20,000 ($4,000). The second year you're losing 20% of 16,000 ($3,200). The dollar value your car loses each year diminishes exponentially, so it is not a linear but an exponential function. 
7 0
3 years ago
The sum of the measure of the interior angles of a polygon is 1980°. What polygon is it? 10-gon 11-gon 12-gon 13-gon
tiny-mole [99]

Answer:

13-gon

Step-by-step explanation:

The sum of the interior angles of a polygon with n sides is:

S = 180° (n − 2)

If S = 1980°, then:

1980° = 180° (n − 2)

11 = n − 2

n = 13

3 0
3 years ago
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