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anyanavicka [17]
3 years ago
15

Twice a number increased by five is 11. What is the number?

Mathematics
1 answer:
Pie3 years ago
7 0

Answer:

2

Step-by-step explanation:

You might be interested in
Solve by factoring s^2-14s+45=0
Maurinko [17]

Answer:

s = 5, s = 9

Step-by-step explanation:

To factor the quadratic

Consider the factors of the constant term (45) which sum to give the coefficient of the s- term (- 14)

The factors are - 9 and - 5

since - 9 × - 5 = + 45 and - 9 - 5 = - 14, hence

s² - 14s + 45 = 0

(s - 9)(s - 5) = 0

Equate each factor to zero and solve for s

s - 9 = 0 ⇒ s = 9

s - 5 = 0 ⇒ s = 5

4 0
3 years ago
Solve the following equation.<br> c/4 = 12​
nexus9112 [7]

Answer:

48

Step-by-step explanation:

c÷4=12

4×c÷4=4×12

c=48

4 0
4 years ago
write and solve an equation to determine the length of a rectangular prism with a width of 4 feet ,a height of 6 feet ,and a vol
Tasya [4]

Answer:

3.5ft

Step-by-step explanation:

To calculate the volume of something, you need to know the formula. Length x width x height. You already know the width, and the height, so you need to find the length.

4ft x 6ft x 3.5ft = 84ft^3

3 0
3 years ago
The following data set represents the salaries of all seven employees at a small start-up company (expressed in thousands of dol
bogdanovich [222]

Answer:

<h2>9.96</h2>

Step-by-step explanation:

If the data set represents the salaries of all seven employees at a small start-up company (expressed in thousands of dollars). 23, 25, 40, 45, 45, 23, 23 in thousands dollars with variance of 99.14, to get the standard deviation, the formula below will be applicable.

Variance = (standard deviation)²

substituting Variance = 99.14 into the equation we wil have;

99.14 = (standard deviation)²

taking the square root of both sides;

√99.14 = √(standard deviation)²

standard deviation = √99.14

standard deviation = 9.96

The standard deviation of the set of datas is 9.96

3 0
3 years ago
The coordinates of Point S are (2/5, 9 1/8). The coordinates of Point T are (-5 7/10, 9 1/8). What is the distance between Point
m_a_m_a [10]

something noteworthy, the y-coordinate for each point is the same, 9⅛, that means is a horizontal line, over which the x-coordinates are at, so since it's a horizontal line, all we need to do is find, what's the distance between \bf \frac{2}{5}\textit{ and }-5\frac{7}{10}

of course, let's firstly convert the mixed fraction to improper fraction and then check their difference.

\bf \stackrel{mixed}{5\frac{7}{10}}\implies \cfrac{5\cdot 10+7}{10}\implies \stackrel{improper}{\cfrac{57}{10}} \\\\[-0.35em] ~\dotfill\\\\ \cfrac{2}{5}-\left[-\cfrac{57}{10} \right]\implies \cfrac{2}{5}+\cfrac{57}{10}\implies \stackrel{\textit{using the LCD of 10}}{\cfrac{(2)2+(1)57}{10}}\implies \cfrac{4+57}{10}\implies \cfrac{61}{10}\implies 6\frac{1}{10}

4 0
3 years ago
Read 2 more answers
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