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Sedaia [141]
4 years ago
11

Using =2L+2W, Find L when P is 50 and W is 10

Mathematics
1 answer:
mestny [16]4 years ago
5 0

Answer:

L = 15

Step-by-step explanation:

P = 2L + 2W

you know that P = 50, W=10

So you have to replace those values on the equation

50 = 2L + 2*(10)  --> Replace P and W

50 = 2L + 20  --> Multiply and now you are going to separate the unknown and the constants.

Remember that if you send a constant to the other side of the equal the sign will change to its opposite

50 - 20 = 2L  --> Solve the constants

30 = 2L    --> Now for the L, you have to leave it alone, so the 2 that is multiplying you have to send it to the other side of the equal but with the opposite operation,  the opposite operation of multiplying is dividing, so you have:

30/2 = L

L= 15

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cestrela7 [59]

Answer:

brainly.com/question/16024105

Step-by-step explanation:

I hope this helped you out =)

3 0
2 years ago
A house appreciates (grows in value) about 6% each year. If the house is now worth 158,000, in about how many years will it be w
expeople1 [14]
200,000 = 158,000(1.06)^x
Divide both sides by 158,000
1.2658 = 1.06^x
Take the log of both sides and use the power rule to bring down the exponent (x) to the front.
log 1.2658 = x log 1.06
Divide both sides by log 1.06
log (1.2658)/log(1.06) = x
x = 4 years

CHECK
y = 158,000(1.06)^4
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8 0
3 years ago
Josiah and kiri are each saving money josiah starts with 100$ in savings accound and adds 5$ per week . Kiri with 40$ in her sav
juin [17]

Answer:

12 weeks

Step-by-step explanation:

Josiah and kiri are each saving money josiah starts with 100$ in savings accound and adds 5$ per week . Kiri with 40$ in her savings account adds 10$ each week after how weeks Josiah and kiri will have the same amount of money in their savings account

Josiah:

100 + 5w

Kiri:

40 + 10w

Where,

w = number of weeks

After how weeks Josiah and kiri will have the same amount of money in their savings account

Equate the savings of the both of them

100 + 5w = 40 + 10w

100 - 40 = 10w - 5w

60 = 5w

w = 60/5

= 12

w = 12 weeks

Josiah and kiri will have the same amount of money in their savings account after 12 weeks

6 0
2 years ago
A rectangle has a perimeter of 25 meters. If the lengths of the sides of the rectangle are multiplied by 7 to make a new rectang
juin [17]

Answer:

175 m

Step-by-step explanation:

We are given;

  • The perimeter of a rectangle as 25 m

We are required to determine the new perimeter if the sides of the rectangle are multiplied by 7.

We know that;

Perimeter of a rectangle = 2(L+W)

Therefore, initially;

2(L+W) = 25 m

Hence;

L + W = 12.5 m

if the sides are multiplied by 7, then;

New length = 7L

New Width = 7W

Thus;

New perimeter = 2(7L+7W)

                         = 14 (L + W)

but, L + W = 12.5

Thus;

New perimeter = 14 (12.5)

                         = 175 m

Therefore, the new perimeter will be 175 m

7 0
3 years ago
Please?
just olya [345]

Answer:

the answer is 12

Step-by-step explanation:

idk

8 0
4 years ago
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