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3 years ago

Mental Math

Mathematics

2 answers:

Morgarella [4.7K]3 years ago

7 0

Answer:

288

Step-by-step explanation:

There are 12 months in a year, so you add 24 12 times.

24 plus 24 is 48

48 plus 24 is 72

72 plus 24 is 96

96 plus 24 is 120

120 plus 24 is 144

144 plus 24 is 168

168 plus 24 is 192

192 plus 24 is 216

216 plus 24 is 240

120 plus 24 is 244

244 plus 24 is 288

my head hurt after this haha

Dimas [21]3 years ago

4 0

Answer:

288 I think

Step-by-step explanation:

24 hours each month. Each year has 12 months so 24x12=288

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4 years ago

Which answer shows 0.00897 written in scientific notation?

mamaluj [8]

Answer:

d) $8.97*10^{-3}$

Step-by-step explanation:

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4 years ago

1,030 at 4% compounded semiannually for 2 years

kotegsom [21]

Answer: $1114.91

Step-by-step explanation:

The formula for compound interest is

$A= P(1+\frac{r}{n})^{nt} \\$

Where

A = final amount

P = initial principal balance (1030 for this)

r = interest rate (0.04 for this)

n = number of times interest applied per time period (2 for this)

t = number of time periods elapsed (2 for this)

$A= 1030(1+\frac{.04}{2})^{(2)(2)} \\\\A= 1030(1+0.02)^{4} \\A=1030(1.02)^4\\A=1114.905125$

This rounds up to $1114.91

6 0

3 years ago