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STatiana [176]
1 year ago
15

Course Grade You were 6 points shy of a B in yo

Mathematics
1 answer:
Oksanka [162]1 year ago
6 0

The point total possible for the given course is equal to 500.

What is a Percent?

  • A ratio whose second term is 100 is known as a percent.
  • Parts per hundred are used in percentages.
  • The mathematical representation of percent is %.
  • The percent formula is given as, x=p \times b, where b is the base number, x is the number being compared to b, and p is the percent in decimal form.

In the question, it is given that you were 6 points shy of a B and the current total points you have is 394.

So, the total number of points you require for a B is calculated as,

394+6=400

So, the value of x is 400.

It is given that you need 80% of the course total for a B.

\implies p=\frac{80}{100}\\ \implies p=0.8

Here, we have to find the base number (b).

We have, x = 80% of b

\implies x=0.8 \times b\\\implies 400= 0.8 \times b\\\implies x=\frac{400}{0.8}

Simplifying, we get

x=500

Therefore, 500 points were possible in the course.

To learn more about the percent from the given link

brainly.com/question/24877689

#SPJ1

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What value of x is in the solution set of 2x – 3 > 11 – 5x?
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A scalar and matrix multiplication problem
pentagon [3]

Answer:

\left[\begin{array}{ccc}-32\\4\\20\\-36\end{array}\right]

Step-by-step explanation:

The product of a scalar times the matrix involves the product of that scalar times each of the elements of the matrix, resulting on the multiplication by "-4" of each of the four elements as shown below. These new product values end up being the new matrix elements.

-4*\left[\begin{array}{ccc}8\\-1\\-5\\9\end{array}\right] = \left[\begin{array}{ccc}-32\\4\\20\\-36\end{array}\right]

5 0
4 years ago
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What is the value of x in the equation three-fourths (one-fourth x 8) minus (one-half x 2) = startfraction 3 over 8 endfraction
Oksi-84 [34.3K]

The value of x in the equation is x=-44.

The given equation is \frac{3}{4}\left(\frac{1}{4}x+8\right)-\left(\frac{1}{2}x+2\right)=\frac{3}{8}(4-x)-\frac{1}{4}.

An algebraic expression in mathematics is an expression that's made from variables and constants, together with algebraic operations (addition, subtraction, etc.). Expressions are made of terms.

Firstly, apply the distributive property as a(b+c)=ab+ac and get

\begin{aligned}\frac{3}{4}\times \frac{1}{4}x+\frac{3}{4}\times 8-\frac{1}{2}x-2&=\frac{3}{8}\times 4-\frac{3}{8}\times x-\frac{1}{4}\\ \frac{3x}{16}+6-\frac{x}{2}-2&=\frac{3}{2}-\frac{3x}{8}-\frac{1}{4} \end

Now, rearrange the terms by taking variable terms on the left-hand side and constant terms on the right-hand side as

\frac{3x}{16}-\frac{x}{2}+\frac{3x}{8}=\frac{3}{2}-\frac{1}{4}-6+2

Further, simplify the above expression by taking L.C.M as

\begin{aligned}\frac{3x-8x+6x}{16}&=\frac{6-1}{4}-4\\ \frac{x}{16}&=\frac{5-16}{4}\\ \frac{x}{16}&=\frac{-11}{4}\end

Then, multiply both sides with 4 and get

\begin{aligned}4\times \frac{x}{16}&=4\times \frac{-11}{4}\\ \frac{x}{4}&=\frac{-11}{1}\end

Furthermore, cross multiply both sides and get

x=-44

Hence, the value of x in the equation which is given \frac{3}{4}\left(\frac{1}{4}x+8\right)-\left(\frac{1}{2}x+2\right)=\frac{3}{8}(4-x)-\frac{1}{4} is x=-44.

Learn about algebraic expression from here brainly.com/question/8690932

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8 0
2 years ago
2. The equation of a circle is x^2 + 2x + y^2 + 6y = 0.
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Answer:

a)
{x}^{2}  + 2x +  {y}^{2}  + 6y = 0
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{(x + 1)}^{2}  +  {(y + 3)}^{2}  = 10
b)
center I(-1;-3)

radius = \sqrt{10}
8 0
4 years ago
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