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stellarik [79]
3 years ago
13

Solve: 3n+18-n=38Need help

Mathematics
1 answer:
docker41 [41]3 years ago
4 0
Hope this helps you!

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Find the length of the hypotenuse of a triangle if one of its legs is 11 cm long and its perimeter is 132 cm.
rodikova [14]

Answer:

1.)

132 cm - 11 cm = 121 cm

So let the hypotenuse be x and the other leg be (121 - x).

11^2 + (121 - x)^2 = x^2

121 + 121^2 - 121(2)x = 0

x = 1/2 + 121/2 = 61 cm

Step-by-step explanation: not sure if this is right or not

7 0
3 years ago
Select an expression that shows the sum of exactly two terms that is equivalent to 3(x + 7).
bixtya [17]

Answer:

3x + 21

Step-by-step explanation:

3(x + 7)           Distribute

3x + 21

6 0
3 years ago
a polygon has an area of 225 square meters. A similar polygon is created with an area that is triple the first. By what factor i
GuDViN [60]
The area of the original polygon is:
 A = 225 m ^ 2
 The similar polygon area is:
 A '= (k ^ 2) * (A)
 Substituting values:
 3 * 225 = (k ^ 2) * (225)
 Clearing k we have:
 k ^ 2 = 3
 k = (3) ^ (1/3)
 Answer:
 
The length of each side increased by:
 
k = (3) ^ (1/3)
6 0
3 years ago
Joshua delivered 30 hives to the local fruit farm. If the farmer has paid to use 5% of the total number of Joshua's hives, how m
IrinaVladis [17]
Joshua delivered 30 hives to the local fruit farm.

If the farmer has paid to use 5% of the total number of Joshua's hives.

So 30 hives is 5% of the total number of hives.

5% of hives = 30

1% of hives = 30 ÷ 5 = 6

100% of hives = 6 × 100 = 600

Thus, Joshua had 600 hives before selling.

Now, he has = 600 - 30 = 570 hives.

Now, Joshua has 570 hives.
4 0
3 years ago
Read 2 more answers
A/ How many hours does it take to fill the pool?
masya89 [10]
Sorry my bad, i m not good in maths.
5 0
3 years ago
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