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nlexa [21]
3 years ago
9

Pedro deposited $7,350 into a savings account 21 years ago. The account has an interest rate of 4.5% and the balance is currentl

y $18,810.67. How often does the interest compound?
Mathematics
1 answer:
Licemer1 [7]3 years ago
5 0
The interest is compounded quarterly because the formula is
A=p (1+r/k)^kt
A it's 18810.67 but I will assume it's unknown ?
P present value 7350
R interest rate 0.045
K compounded quarterly 4
Now solve the formula as the interest is compoundedquarterly
A=7,350×(1+0.045÷4)^(4×21)
A=18,810.67

So the answer is quarterly
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What is the answer for -31 = 9+ 8x? Step by Step.
ryzh [129]

Answer:

<em>-5</em>

Step-by-step explanation:

-31=9+8x

we need to isolate the variable by moving 8x to the left side and -31 to the right side....therefore 8x becomes a negative, -8x, and -31 a positive....so now it would look like...

-8x=9+31

then we work the right side out...

-8x=40

to get x we need to divide -8x by 8 so we do the same to the right side as well....

-8x=40

÷8 ÷8

so...

<em>x=-5</em>

hope this helped you- have a good day bro cya)

4 0
3 years ago
Order the numbers from least to greatest.<br><br> 9/5. -2.5, -1.1. -4/5, 0.8
spayn [35]
-2.5, -1.1, -4/5,0.8,9/5
7 0
3 years ago
Read 2 more answers
-21 &lt; a -16 please help me
frez [133]

Answer:

a > -5

Step-by-step explanation:

Step 1: Flip the inequality.

  • -21 < a - 16
  • a - 16 > -21

Step 2: Add 16 to both sides.

  • a - 16 + 16 > -21 + 16
  • a > -5

Therefore, a > -5.

Have a lovely rest of your day/night, and good luck with your assignments! ♡

3 0
2 years ago
Read 2 more answers
A rectangular fountain display has a perimeter of 400 feet and an area of at least 9100 feet. describe the possible widths of th
belka [17]
<span>Perimeter = 2L + 2W = 400 = 2(L+W) Therefore L + W = 200 Area = L * W = 9100 Where L= Length and W = Width Find Multiples of 9,100 which can sum up to 200. The answer is 130 and 70. Checking. 130 * 70 = 9100 2(130 + 70) = 400 The possible width of the Fountain is 70 feet if the Length is longer or 130 feet if the length is shorter.</span>
5 0
4 years ago
Angle measures and segment lengths. Algebra Find the value of each variable.
schepotkina [342]

Answer:

The value of x is 50

Step-by-step explanation:

  • <em>A </em><em>secant</em><em> is a line that </em><em>intersects a circle</em><em> in exactly </em><em>two points</em><em>. </em>
  • <em>When </em><em>two secants</em><em> intersect </em><em>outside a circle</em><em> then the </em><em>measure</em><em> of the </em><em>angle</em><em> </em><em>formed</em><em> between them is </em><em>one-half the positive difference of the measures of the intercepted arcs</em>

In the given figure

∵ Two secants intersected outside the circle

∵ The measures of the intercepted arcs are 30° and 130°

∵ x is the measure of the angle formed between them

→ By using the fact above

∴ x = \frac{1}{2} (130 - 30)

∴ x = \frac{1}{2} (100)

∴ x = 50

∴ The value of x is 50

4 0
3 years ago
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