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Rudiy27
3 years ago
10

A company that makes​ hair-care products had 400 people try a new shampoo. Of the 400 people, 16 had a mild allergic reaction. W

hat percent of the people had a mild allergic​ reaction?
Mathematics
2 answers:
MrRa [10]3 years ago
5 0

Answer:

4% of people had a mild allergic reaction

Step-by-step explanation:

16 is 4% of 400

y = p\% \times x

p\% = y \div x

p\% = 16 \div 400

p = 0.04

Convert decimal to percentage

p\% = 0.04 \times 100 = 4\%

NNADVOKAT [17]3 years ago
3 0

My Answer:

I am pretty sure it would be around 4%

:)

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Nicola buys a bouquet of 8 sunflowers for $18 What is the cost of 1 sunflower?
Sever21 [200]

Answer:

$2.25

Step-by-step explanation:

Divide the cost ($18) by the amount of flowers (8.)


7 0
3 years ago
Can someone figure this out?
ZanzabumX [31]

well, let's see the 10-pack is $15.37 BUT each of those 10 bars are 2.1 oz, so for the whole package you're getting really 10 * 2.1 = 21.0 oz.

the 12-pack costs $15.35 BUT each of those 12 bars are 1.4 oz, so for the whole package you're getting 12 * 1.4 = 16.8 oz.

which is the better deal?  which one gives you more ounces for the money?  after all, you're going to eat the bars, so you want more ounces, not more bars.

\bf \cfrac{15.37}{21}\cfrac{\$}{oz}~~\approx ~~0.73~\frac{\$}{oz}~\hspace{10em} \cfrac{15.35}{16.8}\cfrac{\$}{oz}~~\approx ~~0.91~\frac{\$}{oz}


so clearly you'd want to get the cheapest one with more ounces, so at $0.73 or 73 cents for each ounce, the 10-pack is the cheapest.

3 0
4 years ago
Please do step by steps for each!
Schach [20]

Answer:

  • x² - 8x + 12
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  • x³ -2x² - 15x

Step-by-step explanation:

#1) Find the polynomial with roots at 2 and 6

  • (x -2)(x - 6) = x² - 8x + 12

#2) Find the polynomial with a double root at -3 and another root at 4

  • (x+3)(x+3)(x-4) = (x²+6x+9)(x-4) = x³ + 2x² - 15x - 36

#3) Find the polynomial with roots 0, -3 and 5

  • (x -0)(x+3)(x-5) = x(x²-2x - 15) = x³ -2x² - 15x
3 0
3 years ago
Find the mean deviation from each data set.<br>(a)<br>12<br>6<br>7<br>3<br>15<br>10<br>18<br>5​
Pavlova-9 [17]

Answer:

5

Step-by-step explanation:

you find the mean of the numbers and use the mean and subtract the mean from all of the numbers.

Sorry I am bad at explaining

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3 years ago
I NEeD HeLp <br> 3 and 1/2 - 1 and 1/3 HeLp ill mark you i swear
galben [10]
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3 0
3 years ago
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