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stich3 [128]
2 years ago
13

Jenna bought a savings certificate that earned 2% simple interest per year. She earned a total of $100 in interest over 4 years.

What was the initial value of the certificate?
Mathematics
1 answer:
ASHA 777 [7]2 years ago
6 0

Answer: Below

Step-by-step explanation:

An interesting part of this problem is that it derives off of Exponential growth formulas.

So by plugging in the values in the Exponential growth:

y = x(1+0.02)^{4}
y = x(1.02)^{4}

What's important is we know the increasing factor, so:

(1.02)^{4} = 1.0824

So now we know 8.24% of something is equal to 100. We can use this to find x, which is our initial value.

x * 0.0824 = 100
x = 100/0.0824

x = 1213.59

The answer is approximately 1213.59

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romanna [79]
It is called a augend.
4 0
3 years ago
HELP ME ASAP PLEASE SOMEONE :(
Anton [14]

Answer:

60

Step-by-step explanation:

find the area of the missing rectangle:

18-12=6

4-2=2

6 * 2= 12

find the area of the rectangle:

(18*4)-12=60

4 0
2 years ago
A philanthropist pledges to donate 10% of a fund each year. If the fund initially has $450,000 how much will
Ann [662]

After 7 years fund balance will be $2152336.05 if the philanthropist pledges to donate 10% of a fund each year.

<h3>What is an exponential function?</h3>

It is defined as the function that rapidly increases and the value of the exponential function is always a positive. It denotes with exponent. \rm y = a^x

where a is a constant and a>1

We have:

A philanthropist pledges to donate 10% of a fund each year.

We can find the amount left after 7 years as follows:

A = 450000(1 - 0.1)⁷

10% of a fund each year.

Rate r = 10% = 0.1

A = 450000(0.9)⁷

A = $2152336.05

Thus, after 7 years fund balance will be $2152336.05 if the philanthropist pledges to donate 10% of a fund each year.

Learn more about the exponential function here:

brainly.com/question/11487261

#SPJ1

6 0
2 years ago
Question 2:
Margarita [4]

POOPY HEAD ATE THE RELATIONSHIP

5 0
3 years ago
Explain how you can find the center of dilation of a triangle and its dilation.
Naddika [18.5K]

In mathematics, the term "center of dilation" refers to a constant point on a surface from which all other points are either enlarged or compressed. The center of dilation and the scale factor comprise the two properties of a dilation.

4 0
3 years ago
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