Answer:
B. is your answer because its compounded
Step-by-step explanation:
1. A.
x parrot fish + y triggerfish = 320 total fish.
y = 7x shows that there are 7 times as many triggerfish.
2. C
x + y shows a total score of 425.
y = 2x - 70 shows that Michael's score, y, is 70 less (minus) than twice Kathryn's
3. write two equations
x + y = 27 total feet
2x + 3 = y
Substitute 2x + 3 for y in the first equation
x + (2x + 3) = 27
3x + 3 = 27
3x = 24
x = 8
Substitute 8 in to either equation to find the other length.
8 + y = 27
y = 19
The shorter piece is 8 and the longer piece is 19
4. x + y = 3200 people -> y = 3200-x
8x + 12y = 33,040 dollars
8x + 12(3200 - x) = 33040
8x + 38400 - 12x = 33040
-4x = -5360
x = 1340 (1340 children)
1340 + y = 3200
y = 1860 adults
5. I don't think the numbers for this were put in correctly because I get a decimal and a negative number when I solve for it but hopefully if you do get the correct cost/amount of coins you will understand this well enough to do it on your own. Hope I helped!
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Answer:
$1,408.21.
Step-by-step explanation:
Since it is compounded annually we could use the formula
A=Pe^rt
We know that the initial amount she deposits is $1200, as stated by the problem. That is our P.
e is well, the e in your calculator which is approximately: 2.7182818284590452353602874713527
r is the rate which is 8%, although you must convert this into a decimal, which would be 0.08 as your r.
Lastly, t is the time, so in this case, 2 years.
And then plug in the values.
A=1200(e)^(0.08)(2)
A=1200(e)^(0.16)
A=1200(1.173510870991810235018611086892)
A=1,408.2130451901722820223333042704
Now since it is a money problem we must put it in the correct format.
A=$1,408.21
Answer:
True.
Step-by-step explanation:
The left side of a "two column proof" is used for your "work" and the right side justifies your statements and is your "proof."
