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Leno4ka [110]
2 years ago
9

Expand and simplify 5(2p-3)-2(2+3p)

Mathematics
1 answer:
stira [4]2 years ago
6 0
4p-19
You need to distribute the 5 first then the -2
you will get 10p-15-4-6p
then all you need to do is combine like terms to get 4p-19
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Khan sold his cycle at loss of 8%.had He sold it for 240 more he would have gained 12%
denpristay [2]

Khan sold his cycle at loss of 8%.had He sold it for 240 more he would have gained 12%. Then cost price is $ 1200 and selling price is $ 1104

<h3><u>Solution:</u></h3>

Assume the cost price be "a"

So the selling price of cycle = a - 8% of a

\text { selling price }=a-\frac{8 a}{100}=\frac{23 a}{25}

Now according to given, had He sold it for 240 more he would have gained 12%

Selling price + 240 = cost price + 12% profit

\frac{23a}{25} + 240 = a + \frac{12a}{100}

\frac{23a + 6000}{25} = \frac{100a + 12a}{100}\\\\92a + 24000 = 112a\\\\20a = 24000\\\\a = 1200

So the cost price is $ 1200

Now the selling price = \frac{23a}{25} = \frac{23 \times 1200}{25} = 1104

So the selling price is $ 1104

7 0
3 years ago
Rewrite the equation into slope-intercept form
VashaNatasha [74]
Well what you want to start off by doing is trying to get the y term by itself.. so well move 2x first

-3y = 6- 2x

then divide by three

y= -2 +2/3 x
8 0
3 years ago
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Wesley made 3/4 of a liter of hot chocolate. Each mug holds 3/8 of a liter. How many mugs
Lelu [443]
Wesley can fill 2 mugs of hot chocolate
7 0
2 years ago
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Solve 8w – 3r = 45 for r
bogdanovich [222]
<span>8w – 3r = 45 
3r = 8w - 45
  r = 8w/3 - 15
hope it helps</span>
7 0
3 years ago
A factory dumps an average of 2.43 tons of pollutants into a river every week. if the standard deviation is 0.88 tons, what is t
vovikov84 [41]
25.8%  
First, determine how many standard deviations from the norm that 3 tons are. So:
 (3 - 2.43) / 0.88 = 0.57/0.88 = 0.647727273  
So 3 tons would be 0.647727273 deviations from the norm. Now using a standard normal table, lookup the value 0.65 (the table I'm using has z-values to only 2 decimal places, so I rounded the z-value I got from 0.647727273 to 0.65). The value I got is 0.24215. Now this value is the probability of getting a value between the mean and the z-score. What I want is the probability of getting that z-score and anything higher. So subtract the value from 0.5, so 0.5 - 0.24215 = 0.25785 = 25.785%  
So the probability that more than 3 tons will be dumped in a week is 25.8%
5 0
2 years ago
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