MATHEMATICS MIDDLE SCHOOL

The perimeter of a paralleogram is 140 cm. find lenghts of sides. Please provide explanation!

Answers

Answer 1

Answer:

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

Related Questions

All nets that will make a triangular prism
What does h(40) = 1700 mean in yearns of the problem?
graces monthly sales totaled $1000. she earns $2000 plus 9% of her sales. what is her total paycheck for this month?
What is the surface area of the prism?A. 420 in2 B. 140 in2 C. 144 in2 D. 288 in2
What is the value of 3 in 30

What is this answer n/6 when n=12

Answers

Answer:

Step-by-step explanation:

Substitute 12 for n

Divide 12 by 6

N=2

Answer:

Step-by-step explanation:

12/6 + 2 = 2 + 2 = 4

Kareen ran 4.16 x 10^3 miles long

Answers

which means she ran 4160 miles long
if this isn't the answer you wanted, please be more precise

Well 10 to the third power(10*10*10) equals 1000 so that times 4.16 equals 4160, sooo I guess that the answer.

What is the total surface area rule

Answers

Length (L) X Width (W) = Area (units squred)

Length times width or based times height

What is 83 divided by 72,628

Answers

0.00114280993 as a decimal answer. The fraction 83/72628 cannot be simplified.

I need help on this one question please someone help me pleases

Answers

so we simplify this and do
5(3a-1)-2(3a+2)=3(a+2)+v
15a-5-6a-4=3a+6+v
add like terms
9a-9=3a+6+v
subtract 6 from both sides and get
9a-15=3a+v
subtract 3a from both sides and get
6a-15=v or 3(2a-5)
so the answers are D,E

or if you want to avoid doing allot of math, you could just figure out which two answer choices are the same (D,E)

5(3a-1)-2(3a+2)=3(a+2)+v
15a-5-6a-4=3a+6+v
9a-9=3a+6+v
9a-15=3a+v
6a-15=v or 3(2a-5)
so the answers are D,E
SORRY I GOT THE OTHER WRONG!

I don’t know the answer