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ivolga24 [154]
4 years ago
11

PLZ HELP WILL GIVE BRAINLISET IT 8TH GRADE MATH HELPPP(6.05)A group of students were surveyed to find out if they like babysitti

ng and/or mowing lawns to earn spending money. The results of the survey are shown below:
32 students like babysitting
21 students like babysitting but do not like mowing lawns
16 students like mowing lawns
12 students do not like babysitting or mowing lawns
Four students created the tables below to represent the data. BT represents babysitting and ML represents mowing lawns.

Emily

Like BT
Do Not Like BT
Total
Like ML
21
12
32
Do Not Like ML
11
5
16
Total
32
17
48
Will

Like BT
Do Not Like BT
Total
Like ML
5
11
16
Do Not Like ML
12
21
33
Total
17
32
49


Sarah

Like BT
Do Not Like BT
Total
Like ML
12
21
32
Do Not Like ML
5
11
16
Total
17
32
48
Maria

Like BT
Do Not Like BT
Total
Like ML
11
5
16
Do Not Like ML
21
12
33
Total
32
17
49


Which student's table is correct?

Emily
Will
Sarah
Maria
Mathematics
2 answers:
charle [14.2K]4 years ago
8 0
Maria's table is correct.
White raven [17]4 years ago
3 0

Answer:

<u><em>The student with the correct table is;</em></u>

                                                             <u><em>Maria</em></u>

<u><em>Hope this helped. :)</em></u>

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Pls helpppppppp......... :( :( :(
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Answer:

Step-by-step explanation:

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Show working out please
Vlad [161]

If 40% are boys, 60% are grills.

As fractions:

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6/10 = 3/5 are grills

70% or 7/10 of the boys arrive by car:

(2/5)(7/10) = 14/50 = 7/25

And 60% or 3/5 of the grills arrive by car:

(3/5)(3/5) = 9/25

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4 0
3 years ago
In a triangle, two sides that measure 8 centimeters and 11 centimeters form an angle that measures 82°. to the nearest tenth of
Gwar [14]
We can use the Сosine formula to solve this problem.
<span>First we must find the third side (АС) of the triangle:
</span>
AC^2=AB^2+BC^2-2*AB*BC*cos82^o \\ AC^2=8^2+11^2-2*8*11*0.1392 \\ AC^2=64+121-24.4992= 160.508 \\ AC= \sqrt{160.508} \approx  12.67 \ cm
<span>
The smallest angle of the triangle lies opposite the smallest side, so we need to find m</span>∠C.

cosC= \frac{AC^2+BC^2-AB^2}{2*AC*BC}  \\  \\ cosC= \frac{12.67^2+11^2-8^2}{2*12.67*11}= \frac{160.53+121-64}{278.74} = \frac{217.53}{278.74} \approx  0.7804

Now we can use Bradis's Table (I don't know the name in English, maybe Trigonometric Table?) to find m∠C:

m∠С = 38°42' = 38.7°

Answer: 38.7°


<span>I hope this helps</span>

7 0
4 years ago
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