The common denominator is 28
Answer:

And we can use the normal table and the complement rule we got:

Step-by-step explanation:
For this case we have the following parameters given:

We select a ample size of n=49. And we want to find this probability:

And for this case is a right tail probability and we can use the z score formula given by:

And replacing we got:

And we can use the normal table and the complement rule we got:

Google it. Sorry I don't know
Answer:
y= -8x + 150
x = -0.125y + 18.75
Step-by-step explanation:
<u>y explanation:</u>
16x+2y=300
Add -16x to both sides: 16x+2y+(-)16x = 300 + (-)16x - this becomes:
2y = -16x+300
Now divide both sides by 2: 2y/2 = (-16x+300)/2 - this becomes:
-8x + 150
So...y= -8x+150
<u>x explanation:</u>
16x+2y = 300
Add -2y to both sides: 16x+2y+(-)2y = 300+(-)2y - this becomes:
16x = -2y+300
Now divide both sides by 16: 16x/16 = (-2y+300)/16 - this becomes:
-1/8y + 75/4...you can simplify this to: -0.125y + 18.75
So...x = -0.125y + 18.75
I hope this helps :)
Answer:
4
Step-by-step explanation:
5/8 x 4 =2.5
2.5 is also 2 1/2