Help on question 32 please
1 answer:
Answer:
90
Step-by-step explanation:
The mean is measured as
mean =
After 5 tests the mean is 84, that is
= 84 ( multiply both sides by 5 )
score = 420
let the sixth test score be x, then
= 85 ( multiply both sides by 6 )
420 + x = 510 ( subtract 420 from both sides )
x = 90
Require to score 90 on the sixth test
You might be interested in
Using simple interest, we have that:
A) The interest due after 8 months is $11,272.33.
B) The total value of the investment will be of $189,986.24.
The amount of interest earning using <em>simple interest</em>, after <u>t years</u>, with an <u>yearly interest rate of i</u> and an <u>initial investment of P</u> is given by:
In this problem:
- Deposit of $178,000, hence
.
- Interest rate of 9.5% per year, hence
.
- 8 months, the time is in years, hence
Item a:
The interest due after 8 months is $11,272.33.
Item b:
For the second interest, we consider , hence:
The total value will be composed by:
- The initial deposit of $178,000.
- The first interest of $11,272.33.
- The second interest of $713,91.
Hence, it will be:
The total value of the investment will be of $189,986.24.
A similar problem is given at brainly.com/question/13176347
Answer:
V ≈ 3367.6 cm³
Step-by-step explanation:
The volume (V) of a sphere is calculated as
V = πr³ ( r is the radius )
Here D = 18.6 , then r = 18.6 ÷ 2 = 9.3 , so
V = × 3.14 × 9.3³
= × 3.14 × 804.357
=
≈ 3367.6 cm³ ( to the nearest tenth )