3 years ago

Dorothy opens a savings account with $80 that earns 8.5% interest

Mathematics

1 answer:

Thepotemich [5.8K]3 years ago

8 0

Answer:

$86.8

Step-by-step explanation:

Given that,

Principal, P = $80

Rate of interest, R = 8.5%

We need to find the money he will have in 1 year. As the interest is not compounded, it must be simple interest. The simple interest can be calculated by the formula,

$I=\dfrac{PRT}{100}\\\\I=\dfrac{80\times 8.5\times 1}{100}\\\\=\$ 6.8$

We know that,

Amount = Principal + interest

= $80 + $6.8

= $86.8

Hence, the amount will become $86.8.

You might be interested in

Which of the following types of symmetry does the graph of the equation r=6sin 5 theta have?

Ivenika [448]

Answer:

Step-by-step explanation:

Plot the graph of the equation $r=6\sin 5\theta$ on the polar coordinate plane (see attached diagram for details).

A. There is no symmetry about the horizontal axis, because three parts of the graph are above the axis and two parts of the graph are under the axis.

B. There is symmetry about the vertical axis, because if you reflect left (or right) part about the vertical axis it will coincide with the other part.

C. There is no symmetry about the pole (see diagram)

D. This option is false, because option B is true (there is axis of symmetry)