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Ymorist [56]
3 years ago
11

A restaurant has three locations, all about the same size, within the same city. The graph shows last mon's sales figures for on

e of the locations. Which stement is best supported by the information in the ground
Mathematics
1 answer:
Liula [17]3 years ago
8 0
Heydbdjrbyseifbdgvydbdudjddjidbdhdbudnd
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If a=b-2x/x+c,then what is the value of x in terns of a,b & c ?​
valina [46]

Answer:

x=\frac{b-ac}{a+2} ; a\neq -2

Step-by-step explanation:

Multiply both sides: by <em>x+c</em>

a(x+c)=\frac{b-2x}{x+c} (x+c)

Simplify: a(x+c)=b-2x

Expand: ax+ac=b-2x

Subtract <em>ac</em> from both sides: ax+ac-ac=b-2x-ac

Simplify: ax=b-2x-ac

Add<em> 2x</em> to both sides: ax+2x=b-2x-ac+2x

Simplify: ax+2x=b-ac

Factor <em>ax+2x</em>: x(a+2)

x(a+2)=b-ac

Divide both sides by <em>a+2: </em>\frac{x(a+2)}{a+2} = \frac{b}{a+2} - \frac{ac}{a+2} ; a≠-2

Simplify: x=\frac{b-ac}{a+2} ; a\neq -2

8 0
3 years ago
If I'm adding mixed numbers so the fractional part is less than 1. How would I solve 9 5/10 + 6 3/10?
Crank
The answer would be 15 4/5. This is because 9 + 6 is 15, and 5/10 + 3/10 is 8/10. We can add these two fractions together because they have the same denominator. So it would be 15 8/10, and 8/10 simplified would be 4/5(because i divided 8 and 10 by the same number until they can't be divided by a whole number anymore). So the answer would be 15 4/5, I hope this helped :)
8 0
3 years ago
Consider 3 trials, each having the same probability of successes. Let X denote the total number of successes in these trials.
Mariulka [41]

Since each trial has the same probability of success, 

Let, <span><span><span>Xi</span>=1</span></span> if the <span><span>i<span>th</span></span></span> trial is a success (<span>0</span> otherwise). Then, <span><span>X=<span>∑3<span>i=1</span></span><span>Xi</span></span><span>X=<span>∑<span>i=1</span>3</span><span>Xi</span></span></span>, 

and <span><span>E[X]=E[<span>∑3<span>i=1</span></span><span>Xi</span>]=<span>∑3<span>i=1</span></span>E[<span>Xi</span>]=<span>∑3<span>i=1</span></span>p=3p=1.8</span><span>E[X]=E[<span>∑<span>i=1</span>3</span><span>Xi</span>]=<span>∑<span>i=1</span>3</span>E[<span>Xi</span>]=<span>∑<span>i=1</span>3</span>p=3p=1.8</span></span>

So, <span><span>p=0.6</span><span>p=0.6</span></span>, and <span><span>P{X=3}=<span>0.63</span></span><span>P{X=3}=<span>0.63</span></span></span>

I thought what I did was sound, but the textbook says the answer to (a) is <span>0.60.6</span> and (b) is <span>00</span>.

Their reasoning (for (a)) is as follows:

3 0
3 years ago
What is the ratio 8 to 72 expressed as a fraction in simplest form?
tia_tia [17]
8/72
1/9.................
5 0
4 years ago
Read 2 more answers
Estimate the sum<br>8 12/31<br>A.13<br>B.13 1/2<br>C.14
kramer
I like the cute avatar and the answer is 13
6 0
3 years ago
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