MATHEMATICS HIGH SCHOOL

PROBLEM SOLVING- The number of left-handed people in the world is one-tenth the number of right-handed people. The percent of right-handed people is nine times the percent of left-handed people and ambidextrous people combined. What percent of people are ambidextrous?

Answers

Answer 1

Answer:

Answer: There are 1% of people are ambidextrous.

Step-by-step explanation:

Let the number of percent of left handed people be 'x'.

Let the number of percent of right handed people be 'y'.

Let the number of percent of ambidextrous people be 'z'.

According to question, the number of left handed people in the world is one tenth the number of right handed people.

so, it becomes,

$x=(y)/(10)\n\n10x=y$

The percent of right handed people is nine times the percent of left handed people and ambidextrous people combined.

$(y)/(100)=9((x)/(100)+(z)/(100))\n\ny=9x+9z$

So, from both the equations we get that

$10x=9x+9z\n\n10x-9x=9z\n\nx=9z$

As we know that

$x+y+z=100\n\nx+10x+(x)/(9)=100\n\n11x+(x)/(9)=100\n\n(99x+x)/(9)=100\n\n(100x)/(9)=100\n\nx=9$

So, percent of people are ambidextrous is given by

$x=9z\n\n9=9z\n\n(9)/(9)=z\n\nz=1\%$

Hence, there are 1% of people are ambidextrous.

Related Questions

Write the inverse of the given conditional statement
Sam needs to cut a piece of sheet metal into 8 pieces. It takes him 5 minutes to make each cut. How many cuts will Sam Make? Can you please explain i got 8 cuts as my answer
59, 51, 55, 46, 50, 40, 44, ____, ____
Can you help me with they, a picture is attached to this. thank you
What is the value of 3-(-2)?

kate has 4 3/8 of fabric and needs 2 7/8 yards to make a skirt. how much extra fabric will she have left?

Answers

1 5/8 extra. Subtract 2 7/8 from 4 3/8. 3 11/8 -2 7/8= 1 5/8 :)

What the answers to estimate 4.23-2.51

Answers

The answer is 1.72 and it would be 2 if estimated

am i right?

The answer is 1.72 and if you estimate it then about 2 or 1.75

Rewrite 1/(x^-3/6) in simplest radical form

Answers

$\frac{1}{x^{-(3)/(6)}} = x^{(3)/(6)} = x^{(1)/(2)} = √(x)$

What is the value of x?

Answers

straight line = 180, so 180-100=80, a triangle = 180, x equals to 180-(70+80) =30, the answer is a

This is actually a relatively simple problem, but because the other angle is missing, it seems complex.

The angle adjacent to the 100 degree outside the triangle is 80 degrees. We know this because it is a supplementary angle, or an angle that, when added along with another angle’s measurement, makes 180 degrees. The line is straight, so the other angle must be 80 degrees to add up with the 100 to make 180 degrees.

Now that we know the other unknown angle, we can use the fact that the sum of angles within a triangle make 180 degrees. The two angles inside the triangle that we know make 150 degrees (80 plus 50), so the final angle ‘x’ must be 30 degrees (180-150=30).

The difference between longitude and altitude

Answers

Hello there,

The difference are Longitude (shown as a vertical line) is the angular distance, in degrees, minutes, and seconds, of a point east or west of the Prime (Greenwich) Meridian. Lines of longitude are often referred to as meridians.

And altitude is the height of an object or point in relation to sea level or ground level , great height

B) Write 1.74 x 10^4 as an ordinary number.

Answers

Answer:

17400

Step-by-step explanation: i might get this wrong but just do 1.74*10^4 and it should equal 17400

Other Questions

a square with an area of 25 in.^2 is plotted on a grid so that the bottom-left corner is at the origin. The side of the square are horizontal and vertical. A reflection over what line maps the square onto itself?

Which t-chart represents the absolute value equation y = |5x|?

4.02 + 2/5 + 3 3/8 + 7.9 (HELP??)

a car is designed to last an average of 12 years with a standard deviation of 0.8 years. what is the probability that a car will last less than 10 years?