Answer:
12.57
Step-by-step explanation:
It'd be B, and eating breakfast can also vary. Sometimes people eat unhealthy things, such as bacon and eggs and pancakes.
Answer:
4.95 and 2.25
Step-by-step explanation:
x+y=7.2
x-y=2.7
Add equations
x+y + x-y= (2x-y+y)=2x
7.2+2.7=9.9
Therefore 2x=9.9 x=9.9/2=4.95
x=4.95
x+y=7.2
4.95+y=7.2
y=7.2-4.95=2.25
y=2.25
Answer:
https://www.google.com/url?sa=i&source=images&cd=&ved=2ahUKEwjTs6Grhv3gAhUSJTQIHacODEgQjRx6BAgBEAU&url=http%3A%2F%2Fwww.1728.org%2Fquadtrap.htm&psig=AOvVaw1WUFCr5yJyx6GQDh_caBfn&ust=1552495399972536
diagonal = sqrt(a^2 +b^2)
20 = sqrt(12^2 +b^2)
20= sqrt(144+b^2)
20^2 = 144 + b^2
400 = 144 + b^2
256 = b^2
b = sqrt(256) = 16
it is 16 inches wide
