Answer:
Step-by-step explanation:
-9x+1=-80
first subtract 1 from both sides
-9x=-81
we divide by -9
x=9
<span>The equation for that is
A = P * [ 1 + (r/n) ] ^(nt)
A = amount of money accumulated after n years, including interest.
P = principal amount (the initial amount you borrow or deposit)
r = annual rate of interest (as a decimal)
n = number of times the interest is compounded per year
t = number of years the amount is deposited or borrowed for.
In this question, P = 9700 , r = 0.034, n = 4 , t = 1
</span>
<span>A = 9700 * [ 1 + (0.034 / 4) ] ^ (4 * 1)
= 9700 * ( 1 + 0.0085 )^4
= 9700 * (1.0085)^4
= 9700 * 1.03443596
= </span><span>10,032.60 rounded off</span>
Answer: n= 4.25
Step-by-step explanation:
First, distribute the -4.
108= 12n+20n-28
Next, simplify.
108= 32n-28
Isolate n by adding 28 to both sides.
136= 32n
Divide both sides by 32 to get n by itself.
n=4.25
Answer:Peter weights 146 pounds.
Step-by-step explanation:
156-4=152
152+2=154
154-5=149
149-3=146
Answer:
12 Pieces
Step-by-step explanation:
Number of candies in Jane's bag = x
she gives 8 to her friend;
x - 8
Then jane's grandmother buys 5 more pieces than jane had originally; add (x + 5)
x - 8 + x + 5
Now jane has 27 pieces of candy
x - 8 + x + 5 = 27
Solve for x;
x - 8 + x + 5 = 27
2x - 3 = 27
2x = 27 -3
2x = 24
x = 12