To solve this problem, we are going to set up an equation and let our unknown value be represented by the variable x. First, we must convert 25% into its decimal equivalent by dividing 25/100.
25/100 = 0.25
We should keep in mind that when we use the word “of” in math, it represents multiplication. This means that our equation should be set up with 2/3 multiplied by 27 on the left side equal to 0.25 times x on the right side, as modeled below:
(2/3)(27)=0.25x
To simplify this equation, we should perform the multiplication on the left side of the equation.
18 = 0.25x
Finally, we should divide both sides of the equation by 0.25 in order to isolate the variable x on the right side of the equation.
x = 72
Therefore, your answer and unknown number is 72.
Hope this helps!
Answer:
2y = 3x + 21
y = 1.5x + 10.5
plug in, in the second equation
- 4x + (1.5x + 10.5) = 23
-4x + 1.5x + 10.5 = 23
-2.5x + 10.5 = 23
-2.5x = 12.5
x = 12.5/-2.5 = -5
y = 1.5 (-5) + 10.5 = 3
x = -5
y = 3
Answer:
down below...
Step-by-step explanation:
Because the signs of the number depe nd on your answer. If it says add -6 plus -2 you would get -8. If you disregarded the negatives you would get 10. Two completly different answers can effect your grade badl. hope this helps. give me brainliest pleaase;)
Use the formulas for the area of a triangle and the area of a rectangle for both figures. The bases are the tops and bottoms of the figures and the lateral sides are the sides not including the top or bottom. It’s basically just finding the areas of each side and adding them all up to find the surface area. Volume is finding the area of the base, using the triangle area formula, and multiplying that by the height of the figure
Hope this helps!
Answer:
10
Step-by-step explanation:
I got it right
