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2 years ago

14

Selena orders CDs for a music shop. She just ordered 8 CDs from each of 11 pop artists and 5 CDs from each of 8 jazz artists. Ho

w many CDs did she order altogether

2 answers:

konstantin123 [22]2 years ago

6 0

Answer:

AWNSER:

(8x11)+(5x8)=128

Step-by-step explanation:

Ipatiy [6.2K]2 years ago

5 0

(8x11)+(5x8)=128
Selena order 128 CD'S all together.

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at the start of 2014 lucys house was worth 200000. the value of the house is increased by 5% every year. work out the value of h

Galina-37 [17]

Answer:

231525

Step-by-step explanation:

2014 = 200,000

Start of 2015

200,000 x 1.05 = 210,000

Start of 2016

210 x 1.05 = 220,500

Start of 2017

220,000 x 1.05 = 231,525

8 0

3 years ago

If a/4=2, what does a equal

Anni [7]

8 because inverse operations indicate that 4x2=8

6 0

2 years ago

Evaluate the function.<br><br> g(x)=10x+3<br><br> g(19.6)=

Zolol [24]

Answer:

199

Step-by-step explanation:

plug in x=19.6, then

g(19.6) = 10 * 19.6 +3= 199

7 0

2 years ago

A student solved for the radius of a circle with a circumference of 12π

padilas [110]

Answer:

Step 4 is incorrect he did not divide correctly from step3 to step 4

Step-by-step explanation:

The circumference of a circle is

C = 2 * pi *r

We know the circumference is 12 pi

12pi = 2 pi *r

Divide each side by 2 pi

12 pi/2pi = 2pi r/ 2pi

6 = r

From step 3 The student did not cancel the pi in the top and the bottom on the right hand side to isolate r

In step 4 he got 6 =pi r instead of pi

3 0

2 years ago

A person invests $4000 at 2% interest compounded annually for 4 years and then invests the balance (the $4000 plus the interest

faltersainse [42]

$\bf \qquad \textit{Compound Interest Earned Amount}
\\\\
A=P\left(1+\frac{r}{n}\right)^{nt}
\quad 
\begin{cases}
A=\textit{accumulated amount}\\
P=\textit{original amount deposited}\to &\$4000\\
r=rate\to 2\%\to \frac{2}{100}\to &0.02\\
n=
\begin{array}{llll}
\textit{times it compounds per year}\\
\textit{annually, thus once}
\end{array}\to &1\\
t=years\to &4
\end{cases}
\\\\\\
A=4000\left(1+\frac{0.02}{1}\right)^{1\cdot 4}\implies A=4000(1.02)^4\implies A\approx 4329.73$

then she turns around and grabs those 4329.73 and put them in an account getting 8% APR I assume, so is annual compounding, for 7 years.

$\bf \qquad \textit{Compound Interest Earned Amount}
\\\\
A=P\left(1+\frac{r}{n}\right)^{nt}
\quad 
\begin{cases}
A=\textit{accumulated amount}\\
P=\textit{original amount deposited}\to &\$4329.73\\
r=rate\to 8\%\to \frac{8}{100}\to &0.08\\
n=
\begin{array}{llll}
\textit{times it compounds per year}\\
\textit{annually, thus once}
\end{array}\to &1\\
t=years\to &7
\end{cases}
\\\\\\
A=4329.73\left(1+\frac{0.08}{1}\right)^{1\cdot 7}\implies A=4329.73(1.08)^7\\\\\\ A\approx 7420.396$

add both amounts, and that's her investment for the 11 years.

7 0

2 years ago