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ira [324]
3 years ago
15

• Write an expression for the perimeter of a

Mathematics
1 answer:
Ksenya-84 [330]3 years ago
6 0

Answer:

10 (X+1)

Step-by-step explanation:

Length = 2x + 5

Width = 3x

Perimeter of rectangle= 2(L + W)

P= 2\times (2x+5+3x)

P= 2\times (5x+ 5)

Now, taking 5 as common

P= 2\times 5 (x + 1)

∴ Perimeter of rectangle= 10\times (x+1)

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which property would allow you to use mental computation to simply the problem the problem 27 +15 +3 +5
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Answer:

Addition

Step-by-step explanation:

4 0
3 years ago
The following playing cards are used in a game. What is the probability of not selecting a prime number?
dybincka [34]

Answer:

3/7

Step-by-step explanation:

1,2,3,4,5,6,7

The word problem is asking the <u>PROBABILITY</u> OF NOT SELECTING A PRIME NUMBER.

PROBABILITY: THE LIKELIHOOD OF AN EVENT.

There are 7 numbers in this data set. Of the seven numbers, four are prime numbers, three of them are not.

Therefore, the probability of not selecting a prime number is 3 in 7, or 3 out of 7 (3/7).

3 0
3 years ago
Solve the equation x2 – 10x – 8= 0 to the nearest tenth.
4vir4ik [10]

Answer:

x = -0.8 and 10.8

Step-by-step explanation:

Given the equation x2 – 10x – 8= 0

Using the general formula

x = -b±√b²-4ac/2a

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x = 10±√100+32/2

x =10±√132/2

x = 10±11.489/2

x = 10-11.489/2 and 10+11.489/2

x = -1.489/2 and 21.489/2

x = -0.8 and 10.8

3 0
3 years ago
Carl has a piece of toast that has jelly on one side, and he dropped it twice. Both times, it landed with the jelly side up. If
Arlecino [84]
Carl has two more flips and we want to know the probability that one and only of those times it will be jelly side up. assuming the basic head and tails probability each flip we have 4 possible;e outcomes: Plain side Plain side, Plain side Jelly side, jelly side Plain side and jelly side jelly side and 2 of those four give us the one P wanted, so 2/4 = 50% probability. 
6 0
4 years ago
Read 2 more answers
James is five inches taller than twice his height when
Sophie [7]

Answer:

2 feet 7 inches

Step-by-step explanation:

first, subtract 5 inches from 5 feet 7 inches which is 5 feet 2 inches

then, divide that in half

you get 2 feet and 7 inches which is your answer

4 0
3 years ago
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