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3 years ago

How many pieces of string, each 1/5 m long, can be cut from a string 3 m long?

Mathematics

2 answers:

alina1380 [7]3 years ago

7 0

15 pieces of string.

Mandarinka [93]3 years ago

3 0

Answer:

15 pieces

Step-by-step explanation:

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8x-5y=21 simultaneous linear equation<br>2x+9y=-5

olya-2409 [2.1K]

Answer:

$x=2$ and $y=-1$

Step-by-step explanation:

If two equations are given, we can solve one of the equation in terms of single variable and put it in the other equation which will further give the value of x and y.

For the given equations:

$8x-5y=21$ Equation:1

$2x+9y=-5$ Equation:2

Solving equation multiply equation 2 with 4 on both the sides

$8x+36y=-20$ Equation 3

Subtracting Equation:3 from Equation:1

$8x-5y-(8x+36y)=21-(-20)\\8x-5y-8x-36y=21+20\\-41y=41\\y=-1$

Putting value of 'y' in Equation:2 which will give the value of x

$2x+9y=-5\\2x+9(-1)=-5\\2x-9=-5\\2x=4\\x=2$

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3 years ago

Help ASAP pls giving brainliest

inna [77]

After arranging the data from least to greatest:

Q1: 12.5
Q3: 16
IQR ( Q3-Q1) : 3.5

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3 years ago

What value of x is in the solution set of 2x-3>11 - 5x?

leva [86]

Answer:

3. 2 or x=2

Step-by-step explanation:

I put your question into a math calculator and this was the answer. Good luck!

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3 years ago

two airplane fly toward each other from points 900 miles apart, at the rate, per hour, of 300 miles and 250 miles. when will the

mojhsa [17]

They complete a 900-mile distance with their combined speed of (300+250=550) mph
Therefore, they meet after 900m/550mph=18/11h=1.6364h

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3 years ago

Steve is buying apples for the fifth grade. Each bag holds 12 apples.

hammer [34]

Answer:

Step-by-step explanation: you have to divide 75 and 12. So here is the answer: 6.25

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3 years ago

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