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Paladinen [302]

3 years ago

15

Out of 28 students in a class, 4 have green eyes. What is the probability a student picked at random from the class does not hav

e green eyes?

2 answers:

DanielleElmas [232]3 years ago

8 0

If 4 have green eyes, 24 did not.
24 / 28 = 6 / 7.

The answer is 6 / 7.

egoroff_w [7]3 years ago

6 0

24/28*100=86%
You take the amount and - with 4, it goves 24. Then you / that and * with 100

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PLEASE HEP ASAP!! BRAINLIEST <br><br> What is the scale factor for this dilation? Show your work!

zaharov [31]

Answer:

2/3

Step-by-step explanation:

Distance MS = √[(6-(-3))²+(3-3)²]= 9

Distance M'S' = √[(4-(-2))²+(2-2)²] =6

scale factor = |M'S'| /|MS|= 6/9 = 2/3

7 0

4 years ago

The sum of two numbers is 17 and their difference is 5. What are the two numbers?

TiliK225 [7]

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4 0

3 years ago

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The number of miles driven is proportional to the gallons of gasoline used. The graph shows this relationship. What is the unit

slamgirl [31]

I think the answer is 9.5 because that is the only number that can be multiplied by 4 that gives you 38.
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6 0

3 years ago

Katie lunch cost 17 dollars no tax she gave a tip of 18 percent of the cost of lunch what’s the total cost no tax

Pie

Answer: $20.06

To find how much 18% of the cost is, convert the percentage to a decimal by dividing by 100. Then multiply that decimal to the cost.

18/100 = .18 (percentage as decimal)
17*.18 = $3.06 (18% of the cost)
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6 0

3 years ago

What is the area of a sector with a central angle of 8 π/11 radians and a radius of 7.2 ft? use 3.14 for π and round your final

coldgirl [10]

Answer:

$59.19 ft^2$

Step-by-step explanation:

step 1

Find the area of the circle

The area of the circle is equal to

$A=\pi r^{2}$

we have

$r=7.2\ ft$

$\pi =3.14$

substitute

$A=(3.14)(7.2)^{2}$

$A=162.78\ ft^2$

step 2

we know that

The area of a circle subtends a central angle of 2π radians

so

using proportion

Find out the area of a sector with a central angle of 8 π/11 radians

$\frac{162.78}{2\pi }\frac{ft^2}{rad} =\frac{x}{(8\pi/11)}\frac{ft^2}{rad} \\\\x=162.78(8/11)/2\\\\x=59.19\ ft^2$

7 0

4 years ago