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Sav [38]
3 years ago
13

the only black pens and green pens in a box the ratio of a number of black pens in the box to the number of green pens in the bo

x is to 5 what fraction of pens are black
Mathematics
1 answer:
eduard3 years ago
4 0

Fraction of black pens = 2/ (2 + 5)  = 2/7  answer

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Find the degree measure of each angle in the triangle.
Alex777 [14]

Answer:

  • ∠R = 56°
  • ∠Q = 90°
  • ∠S = 34°

Step-by-step explanation:

The given triangle is a right angled triangle.

So, the angles in the triangle are :

  • 90°
  • (2x + 38)°
  • (5x - 11)°

Solving according to <u>angle sum property</u>,

Sum of all angles in a triangle is 180°

\longrightarrow 90° + (2x + 38)° + (5x - 11)° = 180°

\longrightarrow 117° + 7x = 180°

\longrightarrow 7x = 180° - 117°

\longrightarrow 7x = 63°

\longrightarrow x = 9

Angles =

\longrightarrow 2(9) + 38

\longrightarrow 56°

\longrightarrow 5(9) - 11

\longrightarrow 34°

  • ∠R = 56°
  • ∠Q = 90°
  • ∠S = 34°

The angles are 56°, 90° and 34°.

4 0
2 years ago
In 687,332,195, how is the value of the three in the ten thousands place related to the value of the 3 in the hundred thousands
olganol [36]
<span>In this case, the value of the first 3 (the ten-thousands) has a value of 30,000. The 3 next to it, in the hundred-thousands place, has a value of 300,000. To compare the two, the 3 on the right has a value one-tenth as much as that on the left.</span>
8 0
3 years ago
Read 2 more answers
 Hansen has $65,575 in a savings account. The interest rate is 9% per year and is not
Montano1993 [528]

Answer:

23.607

Step-by-step explanation:

<em> Given:</em>

$65,575

9%

4 Year

4 x 9% = 0.36

65,575 x 0.36 = 23.607

<u><em>Not sure if it correct or not try my best </em></u>

5 0
2 years ago
American households increasingly rely on cell phones as their exclusive telephone service. It is reported that 50.4% of American
OLga [1]

The variance of the binomial distribution of the number of households with landline service is 2.

<h3>What is the binomial probability distribution?</h3>

It is the probability of <u>exactly x successes on n repeated trials, with p probability</u> of a success on each trial.

The variance of the distribution is given by:

V(X) = np(1 - p)

In this problem, the parameters are given as follows:

n = 8, p = 0.504.

Hence the variance is given by:

V(X) = 8 x 0.504 x 0.496 = 2.

More can be learned about the binomial distribution at brainly.com/question/24863377

#SPJ1

5 0
1 year ago
Simplify.
vichka [17]

Answer

your answer is not shown but the correct answer based on the top is going to be −

7.6x + 6.393

please check to ensure that you wrote the problem correctly as well as your answers.

Step-by-step explanation:

6 0
2 years ago
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