Just substitute the x for each of the values and do the work
Question 1: Option D
Area of the parallelogram = 132 cm²
Question 2: Option B
Area of the parallelogram = 3.60 ft²
Solution:
Question 1:
Base of the parallelogram = 6 + 5 = 11 cm
Height of the parallelogram = 12 cm
Area of the parallelogram = Base × Height
= 11 × 12
Area of the parallelogram = 132 cm²
Option D is the correct answer.
Question 2:
Base of the parallelogram = 1.9 + 0.5 = 2.4 ft
Height of the parallelogram = 1.5 ft
Area of the parallelogram = Base × Height
= 2.4 × 1.5
Area of the parallelogram = 3.60 ft²
Option B is the correct answer.
Answer:
D. 0.925x + 0.88y = 0.91(x + y)
Step-by-step explanation:
The important point to remember is that the total mass of pure silver is the same on each side of the equation.
0.925x = mass of pure silver in first alloy
0.88 y = mass of pure silver in second alloy
The final alloy has a mass of (x + y) g and is 91 % pure silver, so
0.925x + 0.88y = 0.91(x + y)
You’d set up a proportion. I did 25/15=7x-40/18.
Then you would cross multiply to get 15(7x-40)=450
Distribute the 15.
105x-600=450
Add 600 to both sides, so the -600 cancels out.
Then you’re left with 105x=1050
Divide both sides by 105 and you get x=10
Answer:
The correct option is 1.
Step-by-step explanation:
It is given that the box plot shows the number of books sold each day at a store for 80 days.
A box plot is drawn with end points at 0 and 16. It means minimum value is 0 and maximum is 16.
The box extends from 2 to 12. It means first quartile is 2 and the third quartile is 12. A vertical line is drawn inside the box at 7, it means median is 7.
He have to find the number of days in which the bookstore sell 2 to 12 books.
2 is first quartile and 12 is third quartile, we know that
The data lies between Q₁ and Q₃ is 50% of the data.
The bookstore sell 2 to 12 books in 40 days.
Therefore, the correct option is 1.
