Use substitution to solve the equation:
20-4/4.
4/4=1 so it simplifies to 20-1 which equals 19
Answer:
Step-by-step explanation:
Each of the 2-gallon mixes is made of 8 "parts" of paint, so each "part" is 2/8 gallons = 1/4 gallon = 1 quart. We can let <em>b</em> and <em>y</em> represent the costs of 1 quart of blue and yellow paint, respectively.
Then the cost for <u>2 gallons</u> is ...
3b + 5y = 58 . . . lime green
6b +2y = 64 . . . ocean blue
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Subtracting the second equation from twice the first gives ...
2(3b +5y) -(6b +2y) = 2(58) -(64)
8y = 52
y = 6.5
From the first equation, ...
3b = 58 -5y = 58 -5·6.5 = 25.5
b = 25.5/3 = 8.5
The cost of 1 quart of blue paint is $8.50; the cost of 1 quart of yellow paint is $6.50.
Answer:
Alright well solve for y by simplifying both sides of the equation then isolating the variable
Exact form: y = - 13/2
Decimal form: y = - 6.5 Hope this helps have a nice day :)
Step-by-step explanation:
Answer:
40 feet
Step-by-step explanation:
A triangle is a polygon with three sides and three angles. There are different types of triangles such as isosceles triangle, equilateral triangle, scalene triangle, right angled triangle.
The area of triangle ABC is given as:
Area = (1/2) * AC * BC * sin(C)
But C = 50°, Area = 65.1 ft², BC = 10 ft, AC = b, AB = 13 feet.
Substituting gives:
65.1 = (1/2) * b * 10 * sin(50)
3.83b = 65.1
b = 17 ft
Perimeter of ΔABC = AB + AC + BC = 17 + 13 + 10
Perimeter of ΔABC = 40 feet
The correct answer is A. The total points Shelly earned
