2 years ago

Rewrite in simplest terms : 9(-8d - 7 ) +6(d+7)

Mathematics

1 answer:

Pepsi [2]2 years ago

8 0

Answer: -66d-21 I think.

Step-by-step explanation:

9(-8d-7<u>)</u>+6(d+7)

-72d-63+6d+42 Distributive Property

-72d+6d+-63+42 Combine Like Terms

-66d-21 Answer

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Use B=P(1+r/n) to find out the balance in marks account if he deposited 1950.00 at 2% Compounded daily for 4 years

andre [41]

Answer: $2112.40

Step-by-step explanation:

r = 0.02 (2%)

n = 365 (daily for a year)

p = 1950

You wrote the formula wrong too:

B = P x (1+r/n)^nt

t = 4

B = 1950 x 1.08...

B = $2112.40

8 0

3 years ago

Sergio is creating a college fund for his son Diego, who is now 4 years old. Sergio put $1600 in a CD that will earn 8.25% simpl

Vesnalui [34]

well, Diego is 4 now, so by his 18th birthday that'll be 14 years later.

$~~~~~~ \textit{Simple Interest Earned Amount} \\\\ A=P(1+rt)\qquad \begin{cases} A=\textit{accumulated amount}\\ P=\textit{original amount deposited}\dotfill & \$1600\\ r=rate\to 8.25\%\to \frac{8.25}{100}\dotfill &0.0825\\ t=years\dotfill &14 \end{cases} \\\\\\ A=1600[1+(0.0825)(14)]\implies A=1600(2.155)\implies A=3448$