Answer:
Step-by-step explanation:
2 lb bag to 4 sq ft = 1 lb bag to x sq ft
2 / 4 = 1 / x
cross multiply because this is a proportion
(2)(x) = (1)(4)
2x = 4
x = 4/2
x = 2 <==== so a 1 lb bag covers 2 sq ft
Answer: None of the above
Step-by-step explanation:
Answer:
8.9
Step-by-step explanation:
hypotenuse (h) = 21
perpendicular (p) = 19
base (b) = x = ?
We know by using Pythagoras theorem
b = √h² - p²
x = √ 21² - 19²
x = √ 80
x = 8.9
Hope it will help :)
Answer:
y = 2x + 1
Step-by-step explanation:
Let the equation of the line be y = mx + c
since it is parallel to y = 2x + 8, their slope/gradient is the same (aka m = 2)
sub (1, 3):
3 = 2(1) + c
c = 1
therefore, the equation is y = 2x + 1
This is a question on coordinate geometry. If you wish to venture further into it/understand this topic better, you may want to follow my Instagram account (learntionary), where I post some of my own notes on certain topics and also some tips that may be useful to you :)
I=PRT
I=interest
P=principal
R=rate in deciaml
t=time in years
12 months per year
I=800(0.08)(9/12)
I=(64)(3/4)
I=48
interest earned is $48