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Naya [18.7K]
3 years ago
9

WILL GIVE BRAINIEST

Mathematics
2 answers:
Aleksandr-060686 [28]3 years ago
7 0

Answer:

45.5

Step-by-step explanation:

Angles B and C are equal because it is an isosceles triangle.

This means that 180 = (2x+4) + 2(3x+5)

Then just solve for x

180 = 2x+4+6x+10

180 = 8x+14

166 = 8x

x = 20.75

Now plug this into a

A = 2(20.75)+4

A = 45.5

You can check this buy plugging it into B

3(20.75)+5

B = 67.25

C = B, so C = 67.25

B + C + A = 180

67.25 + 67.25 + 45.5 = 180

134.5+45.5 = 180

180 = 180

Katarina [22]3 years ago
4 0
<h2>Answer:</h2>

<h3>45.5</h3>

<h2>Step-by-step explanation:</h2>

Angles B and C are equal because it is an isosceles triangle.

This means that 180 = (2x+4) + 2(3x+5)

Then just solve for x

180 = 2x+4+6x+10

180 = 8x+14

166 = 8x

x = 20.75

Now plug this into a

A = 2(20.75)+4

A = 45.5

You can check this buy plugging it into B

3(20.75)+5

B = 67.25

C = B, so C = 67.25

B + C + A = 180

67.25 + 67.25 + 45.5 = 180

134.5+45.5 = 180

180 = 180

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4 0
2 years ago
A large restaurant chain wanted to determine if its employees were taking sick days on some days of the week more than others. T
lidiya [134]

Answer:

0.2

Step-by-step explanation:

Given the data :

Day : Mon Tue Wed Thu Fri Sat Sun

# of sick days 22 11 16 17 21 28 25

The expected count of sick days taken on Saturday is obtained thus :

Expected count = (row total * column total) / overall total

Here, the table is just one way :

Hence, we use :

Observed value / total days

Hence,

Expected count on Saturday = sick days on Saturday / total sick days

Expected count on Saturday = 28 / (22+11+16+17+21+28+25)

Expected count on Saturday = 28 / 140

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7 0
2 years ago
Do ratios 15:5 and 6:2 form a proportion?
mrs_skeptik [129]

For two ratios to form a proportion they have to be equal.

To see if two ratios are equal we express them in their simplest form.

In this case we notice that in the first ratio both numbers are multiples of five, then:

15\colon5=3\colon1

In the second case we notice that both numbers are multiples of 2, then:

6\colon2=3\colon1

Since both ratios can be simplified to the same final ratio, they form a proportion.

7 0
1 year ago
Topic Solving Percent Problems
svlad2 [7]

Answer: Percent=60 base=120 amount= 291

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3 0
3 years ago
12-5(2w-13)=3(2w-5)<br> solve for w
maria [59]
W=5.75.

HOPE THIS HELPED☺☺
7 0
3 years ago
Read 2 more answers
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