The equations 13x + 15y = 55.50 and 46x + 16y = 131.50 can be utilized to find out the cost per pound for both bananas and grapes, where x represents the price for bananas and y denotes the price for grapes.
B. f(x) ≤ 0 over the interval [0, 2]. D. f(x) > 0 over the interval (–2, 0). E. f(x) ≥ 0 over the interval [2, ).
Answer:
I’d say it’s moderate in my opinion
Step-by-step explanation:
I might not be correct, so it’s best to wait for another person's input if my answer isn’t what you seek
Part A
The weight of a wire piece correlates directly to its length
⇒ Weight of wire (W) is proportional to Length of wire (L)
⇒ W = k × L
With L = 25 cm, then W = 6 gms
⇒
= k
⇒ k = 
To find weight for 30 cm wire, substitute k and W into W = k × L
⇒ W =
× 30
⇒ W = 7.2 gms
Part B
p is inversely proportional to m
⇒ p = k × m
If p=48 when m=9
k = 
⇒ k = 
Now to deduce p when m = 12, replace m and k in p = k × m
p =
× 12
⇒ p = 64