Ratio of men:women in the simplest form is 7:8
Step-by-step explanation:
- Step 1: Given total adults = 150. Number of women = 80. Find the number of men.
Number of men = 150 - 80 = 70
- Step 2: Find the ratio between men and women.
Men:Women = 70:80 = 7:8
So there are two ways.
First you could solve for y and plug it into the calculator. one equation for y1 and another for y2. Then go 2nd trace and press 5 and then press enter 3 times to find the intersection.
the second way is to solve by hand. I would suggest solve the first equation for y and plug the equation solved for y into the other equation. so y = -3x + 9 and 3x-5y=15. Then you could do 3x - 5(-3x+9) = 15. Finally solve for x and plug in x into both equations to see if you get the same y value.
The answer should be (10/3, -1)
Answer:
3
Step-by-step explanation:
(-7)-9-((-4)-1)
-2-(-4-1)=3
-2-(-5)=3
-2+5=3
x=3
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Also you can use the app called Microsoft Math Solver, it helps alot. :)
Answer:
Step-by-step explanation:
Answer:
0.6625
Step-by-step explanation:
To find the surface area, calculate the area of each shape and add it together, A pyramid has 1 square and 4 triangles in its net,
Area of square is A=s*s=0.25*0.25=0.0625.
Area of a triangle is A= 1/2 b*h = 1/2 (0.25)(1.2) = 0.15.
There are four equal triangles so together there area is 4*0.15 = 0.60.
Add the square to it and you have the surface area of the pyramid.
0.0625 + 0.60 = 0.6625
