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dangina [55]
2 years ago
14

Isabella earns interest at an annual rate of 10% compounded annually on her savings account. She deposits $2,000 into her accoun

t. What is the total amount of money Isabella will have in her account after 2 years? The Interest Isabella will have in her account after 2 years is?
Mathematics
2 answers:
IrinaK [193]2 years ago
7 0

Answer:

10% of 2,000 is 200. 2000 + 200 = 2200. 10% of 2200 is 220. 2200 + 220 = 2420. Answer is 2420.

Step-by-step explanation:

She starts off with 2000. She earns 10% of 2000 the first year. 10% of 2000 is 200. Then add to get the amount of money she has at the end of that year. 2000 + 200 = 2200. Then the next year she earns 10% of 2200. 10% of 2200 is 220. Add 2200 + 220. 2200 + 220 = 2420.

Nataly_w [17]2 years ago
6 0

Answer: 2420

Step-by-step explanation:

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IRISSAK [1]

The Answer is 10n - 6

4 0
3 years ago
Perry sold half his comic books. Then bought 16 more. How many did he begin with if he now has 40?
pashok25 [27]

Answer:

Step-by-step explanation:

40-16= 24 before he bought the 16

24*2=48 before he sold half

7 0
3 years ago
Keith has p pennies, n nickels, and d dimes in his pocket. the total number of coins is 9. the expression 0.01p+0.05n+0.10d0.01p
sineoko [7]
The total number of coins is 9. Therefore  
  p+n+d = 9                (1)
There are two fewer nickels than dimes. Therefore
  n = d - 2                  (2)
From (1) and (2), obtain
p+(d-2)+d = 9
p + 2d = 11                
p = 11 - 2d                                           (3)
Total value:
0.01p + 0.05n + 0.10d = 0.53             (4)
Substitute (2) and (3) into (4).
0.01(11-2d) + 0.05(d-2) + 0.10d = 0.53
0.11 - 0.02d + 0.05d - 0.10 + 0.10d = 0.53
0.03d + 0.01 = 0.53
0.13d = 0.52
d = 4
p = 11 - 2d = 11 - 8 = 3
Answer: 3 pennies
5 0
4 years ago
In TriangleARC, m AngleA = 70°. What is the measure of arc AC?
rusak2 [61]
I found the image that should have accompanied this problem.

The triangle inside the circle is an isosceles triangle. It has 2 equal sides and 2 equal angles. 

Angle A = 70° , Angle C is also 70°. This leaves angle R having 40°.

The arc opposite angle R is twice the measure of its angle.

Angle R = 40°
Arc AC = 40° x 2 = 80°

The measure of arc AC is 80°.
4 0
3 years ago
Please help me!! 100 points!! A student solved the equation sin2x/cosx =2 ‘ 0=< x =< pi and found an answer of pi/2 descri
muminat

Answer:

sin(2x)/cos x = 2sin x*cos x/ cos x = 2 sin x = 2

sin x = 1

x = pi/2

but cos pi/2 = 0

so the given equation is indeterminate for x = pi/2

Step-by-step explanation:

3 0
3 years ago
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