Answer:
The length of the sides of this parallelogram are 40 cm and 30 cm
Step-by-step explanation:
1. Let's check all the information provided to find the length of the sides of the parallelogram:
Perimeter = 140 cm
Length of the sides: x + 10 and 2x
2. Let's find the value of x and in this way, the length of the sides:
Recall that the perimeter of any parallelogram is the sum of its four sides, thus for this specific parallelogram, we have:
Perimeter = 2x + 2x + x + 10 + x + 10
We know that the perimeter is 140, we substitute in the equation:
140 = 2x + 2x + x + 10 + x +10
140 = 6x + 20
140 - 20 = 6x (Subtracting 20 at both sides)
120 = 6x
120/6 = x (Dividing by 6 at both sides)
20 = x
Now we can calculate the length of the sides:
Lower side is x + 10
20 + 10 = 30 cm
Higher side is 2x
2 * 20 = 40 cm
Perimeter = 30 + 30 + 40 + 40
Perimeter = 140 cm
The expression that can be used to determine the total bill is 1.20 x ($47.60)
The total bill paid is the sum of the cost of the meal and the value of the tip.
Cost of the meal = $47.60
Cost of the tip = 0.20 x $47.60
Total cost of the meal = 1.20 x ($47.60)
To learn more about the total cost of an item, please check: brainly.com/question/25717996
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(just putting this here since the question is too short)
Answer:
Ned will both swim and bicycle at every 24th day.
Step-by-step explanation:
It is given that Ned swim every sixth day and bicycle every eighth day.
For getting the days will he both swim and bicycle. We have to find Least Common Multiple(L.C.M) of 6 and 8.
6 = 2 × 3
8 = 2 × 2 × 2
⇒ LCM of (6 and 8) = 2 × 2 × 2 × 3 = 24
Hence, Ned will both swim and bicycle at every 24th day.