Solution:
<u>Step-1: Subtract 4.3 both sides.</u>
- x/5 + 4.3 = 12.4
- => x/5 + 4.3 - 4.3 = 12.4 - 4.3
- => x/5 = 8.1
<u>Step-2: Use cross multiplication to find x.</u>
- x/5 = 8.1
- => x = 8.1 x 5
- => x = 40.5
Hence, the value of x is 40.5.
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.
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To determine the ratio, we need to know the formula of the area of an hexagon in terms of the length of its sides. We cannot directly conclude that the ratio would be 3, the same as that of the ratio of the lengths of the side, since it may be that the relationship of the area and length is not equal. The area of a hexagon is calculated by the expression:
A = (3√3/2) a^2
So, we let a1 be the length of the original hexagon and a2 be the length of the new hexagon.
A2/A1 = (3√3/2) a2^2 / (3√3/2) a1^2
A2/A1 = (a2 / a1)^2 = 3^2 = 9
Therefore, the ratio of the areas of the new and old hexagon would be 9.
The answer is -110.
This is because -55-55=-110.
You have to put -55-55 because the question is asking for you to multiply -55 twice, which is technically-55-55.