Inequality: y - 5 ≥ 8

Add 5 to both sides: y - 5 + 5 ≥ 8 + 5

Combine like terms: **y ≥ 13**

On a graph, this will look like the image shown. This is because the ≥ symbol means that the variable (y) is greater than or equal 13, so all numbers bigger than 13, including 13, are valid answers.

**Answer:**

1/1 or 1

**Step-by-step explanation:**

**Answer:**

Pie Graph

**Step-by-step explanation:**

Pie charts are normally used to show percentages, while the other normally show the actual amount of something.

While a table and a bar graph can be used to show percentage, a pie chart is most commonly used and gives the best visual representation.

The **metallurgist** must use 5.538 pounds of an **alloy** with 39 % **copper** and 42.462 pounds of an **alloy** with 62 % **copper**.

<h3>How to calculate proportions of components associated to an alloy</h3>

Herein we must create a new **alloy** by using correct quantities of two **alloys** with distinct <em>copper</em> **concentrations**. All required information can be found by concept of <em>weighted</em> **averages**:

(62/100) · (48 lb) = (39/100) · x + (65/100) · (48 - x)

62 · 48 = 39 · x + 65 · 48 - 65 · x

3 · 48 = 26 · x

x = 5.538 lb

The **metallurgist** must use 5.538 pounds of an **alloy** with 39 % **copper** and 42.462 pounds of an **alloy** with 62 % **copper**.

To learn more on **weighted averages**: brainly.com/question/28053890

#SPJ1

**Answer:**

Number of en at the lecture = 18

**Step-by-step explanation:**

Let the men at lecture be 2x

And women at lecture be 5x.

Remember ratio of men and women is 2 to 5.

Total number of people at the lecture = 63

i.e 2x + 5x = 63

or 7x = 63

or x = 63 /7

or x =9

Hence , Men at the lecture = 2x = 2*9 = 18

And women at the lecture = 5x = 5*9 = 45