A=A trapeze+ A rectangular trapeze
A= (6.5+3.2)*4.5/2 + (1.8+4.5)*4.5/2= (9.7+6.3)*4.5/2=16*4.5/2=8*4.5=36 m^2
There are 146 - 84 = 62 girls
ratio is 84:62
simplifies to 42:31
Answer:
5 no i am not preety sure though
Answer:
equation: 3x+x+15+x=180
Step-by-step explanation:
solve:
3x+x+15+x=180
5x+15=180
5x = 165
x = 33
3(33) =99
33
33+15= 48
99+33+48=180
The basic structure of a linear function is y=mx+b (or +c, depending on your schools curriculum)
We need to find the slope (m), and the y-intercept (b/c)
To find the slope you can pick two random points, say (2,2) and (0,1)
The formula for the slope is this: m= y1-y2 / x1-x2
So if we substitute the points in, we get 2-1 / 2-0 = 1/2
Knowing the slope, it can be substituted into to the equation: y=1/2x + b
Then, if you notice the second point- (0,1), it’s the y-intercept. The y coordinate there is 1.
To check if this is correct, a random coordinate set can be picked and substituted in to find b.
y= 1/2x + b
2 = 1/2 *2 + b
2 = 1 + b
2-1=b
1=b
Therefore, the final linear function is y = 1/2 x + 1
