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Tpy6a [65]
2 years ago
9

What is the value of x in the figure? A. 10 B. 6 C. 15 D. 12

Mathematics
1 answer:
Anuta_ua [19.1K]2 years ago
3 0

Answer:

Step-by-step explanation:

You need to set up a proportion.

(21 - 15) / 21  = 4/(x + 4)

6 / 21 = 4/(x + 4)

2/7 = 4/(x + 4)

2(x + 4) = 7*4

2x + 8 = 28

2x + 8-8= 28 - 8

2x = 20

x = 20/2

x = 10

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If 29% of the students wore jeans what percent of he students did not wear jeans?
igor_vitrenko [27]

So you just take 100% - 29% = 71%

So 71% of the students did not wear jeans


7 0
3 years ago
In​ 2012, a health insurance plan for a​ 35-year-old and his or her spouse costs ​$301 per month. That rate increased to ​$430 p
katrin2010 [14]

Answer: See explanation

Step-by-step explanation:

Let the cost for insuring the applicant = a.

Let the cost for insuring the spouse = b

Let the cost for insuring the first child= c

Let the cost for insuring the second child = d

A 35-year-old health insurance plan and that of his or her spouse costs ​$301 per month. This means that:

a + b = $301.

That rate increased to ​$430 per month if a child were included. This means the cost of a child will be:

= $430 - $301

= $129

The rate increased to $538 per month if two children were included. This means the cost for the second child will be:

= $538 - $430

= $108

The rate dropped to ​$269 per month for just the applicant and one child. His will be the cost of the applicant and a single child. This can be written as:

a + $129 = $269

a = $269 - $129

a = $140

Since a + b = $301

$140 + b = $301

b = $301 - $140

b = $161

Applicant = $140

The spouse = $161

The first​ child = $129

The second child = $108

3 0
3 years ago
What is the equation in point−slope form of the line passing through (−3, −4) and (0, 2)?
Nana76 [90]

Answer:

y = 2x + 2

Step-by-step explanation:

To find the slope we do (Y1 - Y2)/(X1-X2) aka rise over run

So, m = (-4 - 2) / (-3 - 0)

m = 2

Now we have y = 2x +b

Notice one of our points is (0,2)

Since the x value of that point is 0, it is the y intercept.

In the slope intercept form b = y-intercept

Therefore b = 2

So, y = 2x + 2

4 0
3 years ago
NEED MEED MEED HELP PLEASE
jek_recluse [69]
2.57+4.35=6.92
Tyrone spent $6.92 on paint
8 0
3 years ago
50 points For these answers
Y_Kistochka [10]
Answer = 16 square blocks.

There are 16 square blocks in the shape.

I hope this helps.
6 0
3 years ago
Read 2 more answers
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