Answer:
C. $16.60
Step-by-step explanation:
Let the cost per pound of salmon be represented by x
The cost per pound of swordfish be represented by y
Melissa buys 2 1/2 pounds of salmon and 1 1/4 pounds of swordfish. She pays a total of $31.25
2.5 × x + 1.25× y = $31.25
2.5x + 1.25y = 31.25
The swordfish costs $0.20 per pound less than the salmon.
y = x - 0.20
Hence, we substitute
2.5x + 1.25y = 31.25
2.5y + 1.25(x - 0.20) = 31.25
2.5y + 1.25x - 0.25 = 31.25
2.5x + 1.25x = 31.25 + 0.25
3.75x = 31.5
x = 31.5/3.75
x = $8.4
The cost per pound of salmon be represented by x = $8.4
y = x - 0.20
y = 8.4 - 0.20
y = $8.2
The cost per pound of swordfish be represented by y = $8.2
The cost of a pound of salmon and sword fish
= $8.4 + $8.2
=$16.60
Answer:
Quadrant II
Step-by-step explanation:
(-5,6)
The x coordinate is negative so the quadrant is either 2 or 3
The y coordinate is positive so the quadrant is either 1 or 2
To make both happen, it must be in quadrant 2
Quadrant II
Answer:
C. -10
Step-by-step explanation:
if a=-10 then...
1+a/5
=1+(-10)/5
=1+(-2)
=-1
The data is modeling a geometric sequence because they have a common ratio of 2.
<h3>Calculations and Parameters</h3>
The recursive formula to determine the time she will complete station 5
- f(n)=f(n-1)*r
- f(n)=f(5-1)*2
- f(n)=f(4)*2
- f(n)=(24)2
- f(n)= 48
Part C:
The explicit formula to find the time she will complete the 9th station.
- f(n)=f(1)*r^n-1
- f(n)=3*2^8-1
- f(n)=3*2^7
- f(n)=3*128
- f(n)=384
Read more about recursive formula here:
brainly.com/question/1275192
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