Answer:
11 cm, 19 cm, 27 cm
Step-by-step explanation:
Triangles have 3 sides and perimeter is the sum of all side lengths. So the equation is x + (2x-3) + (2x+5) = 57.
x + (2x-3) + (2x+5) = 57
x + 2x - 3 + 2x + 5 = 57
x + 2x + 2x - 3 + 5 = 57
5x + 2 = 57
5x = 57 -2
5x = 55
x = 11
Now that we know the value of x, we can figure out the side lengths. The first side (x) is 11 cm long, the second side (2x - 3) is 19 cm, and the third side (2x + 5) is 27 cm long.
Friday night, a pizza parlor sold 5 large pizzas and some medium pizzas. The pizza parlor made a total of $291. How many medium pizzas were sold? Medium pizzas cost $9 and large pizzas cost $15
The large pizza costs $15 and earns $75, and the medium pizzas cost $9 and it earns $216. The large pizzas were sold 5, meanwhile, the medium pizzas were sold 24.
<h3>
Why the pizza parlor sold 24 medium pizzas?</h3>
The pizza parlor made $291 from the large and medium pizzas.
The pizza parlor sold 5 large pizzas with cost $15.
5 × $15 = $75
$291 - $75 = $216
The pizza parlor sold … medium pizzas with cost $9.
$216 ÷ $9 = 24
The pizza parlor sold 24 medium pizzas.
Learn more about multiplication:
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The middle row is long on one side and short in the other side which is the shape of a rectangle.
The net is a rectangular prism
