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GaryK [48]
3 years ago
9

What is the value of x in the equation 13 x minus 2 (8 + 5 x) = 12 minus 11 x?

Mathematics
2 answers:
AnnZ [28]3 years ago
6 0

The value of n in given proportion is 16

<u><em>Solution:</em></u>

We have to find the value of "n" in the proportion

<em><u>Given proportion is:</u></em>

<em><u></u></em>\frac{n}{28} = \frac{4}{7}<em><u></u></em>

We can solve the above proportion by cross-multiplying

Multiply the numerator of the left-hand fraction by the denominator of the right-hand fraction

Multiply the numerator of the right-hand fraction by the denominator of the left-hand fraction

Set the two products equal to each other

Solve for the variable

->\frac{n}{28} = \frac{4}{7}

-> 7 *  n = 4 * 28

-> n = \frac{4 * 28}{7}

-> n = 4 * 4 = 16

Thus the value of n in given proportion is 16

larisa [96]3 years ago
6 0

Answer:

the value of n in given proportion is 16

Step-by-step explanation:

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sweet-ann [11.9K]
Lets look at the information we have:-

6.8 pounds on Sunday
8.75 pounds on Monday
How many pounds did he collect together on these 2 days?

Add:-

6.8 + 8.75 = 15.55
Dan collected 15.55 pounds of aluminum on these 2 days. 

CHECK OUR WORK:-

15.55 - 8.75 = 6.8
We were RIGHT!! 

So, Dan collected 15.55 pounds of aluminum on these 2 days. 

Hope I helped ya!! xD 
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3 years ago
If each edge is 5 inches, what will be the surface area of the cube? Pls help.
il63 [147K]

Answer:

C

Step-by-step explanation:

A cube has 6 square faces

Each face: 5² = 25

Surface area: 6(25) = 150 in²

4 0
3 years ago
Raman buys two packages of chicken wings. One package weighs 1.28 pounds, and the other weighs 2.63 pounds. The price of chicken
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Total cost of the chicken wings is $12.71

Step-by-step explanation:

  • Step 1: Given weight of package 1 = 1.28 pounds, package 2 = 2.63 pounds and price of chicken wings per pound = $3.25
  • Step 2: Calculate total weight of both packages = 1.28 + 2.63 = 3.91 pounds
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⇒ Total Cost = 3.91 × 3.25

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4 0
3 years ago
Given the unbalanced equation: Al + O2 → Al2O3 When this equation is completely balanced using smallest whole numbers, what is t
zlopas [31]

Answer:

The sum of the coefficients is 9.

Step-by-step explanation:

A chemical equation shows the chemicals that react (the reactants) followed by an arrow followed by the chemicals that are produced by the reaction (the products).

We have the following unbalanced equation

\mathrm{Al}+\mathrm{O_2}\rightarrow\mathrm{Al_2O_3}

To balance an equation, we add a coefficient to the front of each element or compound that requires it. Essentially you are multiplying the amount of atoms or compounds on one side to match the amount on the other side.

The balanced chemical equation is

\mathrm{4Al}+\mathrm{3O_2}\rightarrow\mathrm{2Al_2O_3}

The sum of the coefficients is equal to the sum of the number of reacting molecules and the number of products produced in the balanced chemical equation.

Therefore,

4 + 3 + 2 = 9

8 0
3 years ago
What is the slope of the line that passes through the points
Galina-37 [17]

Answer:

<h3>-3/4</h3>

Step-by-step explanation:

Given the coordinates (4, -2) and (24, -17), we are to find the slope of the line passing through the points

Slope = y2-y1/x2-x1

Slope = -17-(-2)/24-4

Slope = -17+2/20

Slope = -15/20

Slope = -3/4

Hence the required slope is -3/4

6 0
3 years ago
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