Answer:
842 rounded to the nearest ten is 840
Step-by-step explanation:
Answer:
m = -1
b = 3
Step-by-step explanation:
This equation is in slope intercept form: y = mx + b
m is the slope
b is the y intercept
m = -1
b = 3
Yeah that’s the right answer
Wa=0.5Wb, Ha=20, Hb is unkown
the area of rectangle a is : Wa*20
the area of rectangle b is : Wb*Hb
Rectangle a has 7 times the area of rectangle b: Wa*20=7*Wb*Hb
Replace Wa with 0.5Wb: 0.5Wb*20=7Wb*Hb => Hb=10/7