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andrew-mc [135]

3 years ago

11

-2 3/4 on a number line how would I do that

1 answer:

lesya [120]3 years ago

5 0

This is an example I put a dot where -2 3/4 should be

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Mike spent half of his allowance going to the movies he washed the family car and earned 9 dollars what is his weekly allowance

EleoNora [17]

$10 I believe. Hope it helped!

8 0

3 years ago

How do I find ac in this problem

suter [353]

7 / x+4 = 5/x+1 =

5x+20 = 7x+7 =

20=2x+7

13=2x

x=13/2 = 6.5

6.5+4 = 10.5

6.5+1 =7.5

10.5+7.5 = 18

length of AC = 18

8 0

3 years ago

2 A boat costs $18,800 and decreases in value by 12% per year. How much will the boat be worth after 13 years?

11111nata11111 [884]

$\bf \qquad \textit{Amount for Exponential Decay} \\\\ A=P(1 - r)^t\qquad \begin{cases} A=\textit{accumulated amount}\\ P=\textit{initial amount}\dotfill &18800\\ r=rate\to 12\%\to \frac{12}{100}\dotfill &0.12\\ t=\textit{elapsed time}\dotfill &13\\ \end{cases} \\\\\\ A=18800(1-0.12)^{13}\implies A=18800(0.88)^{13}\implies A\approx 3568.0636019$

6 0

3 years ago

Please help! Israel added $80 to his savings. This added amount represents 1/8 of his total savings. If s represents the total s

Montano1993 [528]

Answer:

$s+80=\dfrac{1}{8}s$

Step-by-step explanation:

Let s represents the total Israel's savings.

Israel added $80 to his savings. Hence, he then had $(s+80).

This added amount represents $\frac{1}{8}$ of his total savings. $\frac{1}{8}$ of his total savings is

$\dfrac{1}{8}s$

Therefore,

$s+80=\dfrac{1}{8}s$

8 0

3 years ago

Antoine has a carnival booth at the school fair where students randomly select a ping pong ball from a can. He wants to place 5

nevsk [136]

Answer:

(a) $5n=3n+15$

(b) $n=7.5$

Solution is not viable

Step-by-step explanation:

(a)

Total number of red ping pong balls $=5$

Total number of red ping pong balls $=n$

Now, probability of an event $=\frac{Number of favourable events}{Total number of events}$

Then, theprobability of randomly choosing a blue ping pong ball is

$=\frac{n}{n+5}$

Given that this probability is $=\frac{3}{5}$

Thus, we have that,

$\frac{n}{n+5}= \frac{3}{5}\\ 5n=3(n+5)\\5n=3n+15$

(b)

Solving, the above equation,

$5n=3n+15\\2n=15\\n=7.5$

This solution is not viable as, number of ping pong ball must be an integer and not a decimal number.

7 0

3 years ago