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Airida [17]
3 years ago
14

Melissa collects data on her college graduating class. She finds out that of her classmates, 60% are brunettes, 20% have blue ey

es, and 5% are brunettes that have blue eyes. What is the probability that one of Melissa's classmates will be a brunette or have blue eyes
Mathematics
2 answers:
bearhunter [10]3 years ago
6 0

Answer:

0.75

Step-by-step explanation:

Ivahew [28]3 years ago
3 0

Answer:

17

Step-by-step explanation:

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ASHA 777 [7]
I think 3.16 I said I think
3 0
3 years ago
1. When three boys jumped on a weighing scale together, it read 200 kilograms One boy stepped off and it showed 142 kilograms On
Elenna [48]

Answer:

58kg, 70kg and 72kg

Step-by-step explanation:

Starting weight was 200.

Boy 1- Changed from 200 to 142. 200kg - 142kg= 58 kg

Boy 2- Changed from 142 to 72.  142kg- 72kg = 70kg

Boy 3- Last one on the scale and it showed 72kg so his weight is 72kg

3 0
3 years ago
Read 2 more answers
Select the correct answer.
Virty [35]

Answer:The answer is B

Step-by-step explanation:

8 0
3 years ago
Beatrice calculated the slope between two pairs of points.
kumpel [21]

Answer:

The answer in the procedure

Step-by-step explanation:

we know that

The formula to calculate the slope between two points is equal to

m=\frac{y2-y1}{x2-x1}

step 1

Find the slope between (-3, -2) and (1, 0)

m=\frac{0+2}{1+3}

m=\frac{2}{4}=\frac{1}{2}

Find the equation of the line

y-y1=m(x-x1)

with m and the point (1,0)

substitute

y-0=\frac{1}{2}(x-1)

y=\frac{1}{2}x-\frac{1}{2}

step 2

Find the slope between (-2, -1) and (4, 2)

m=\frac{2+1}{4+2}

m=\frac{3}{6}=\frac{1}{2}

Find the equation of the line

y-y1=m(x-x1)

with m and the point (4,2)

substitute

y-2=\frac{1}{2}(x-4)

y=\frac{1}{2}x-2+2

y=\frac{1}{2}x

<em>Compare the equation of the two lines</em>

The two lines are parallel, because their slope is the same, but are different lines

therefore

Beatrice's conclusion is incorrect

All of these points are not on the same line, because are different parallel lines

The slope between (-2,-1) and (1,0) is equal to \frac{1}{2}

8 0
4 years ago
Read 2 more answers
Alice walks 6 over 10 mile ever day. How far does alice in 5 days?
leva [86]

Answer:

3 miles

Step-by-step explanation:

6/10x5=30/10

30/10=3

5 0
3 years ago
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