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Sladkaya [172]
3 years ago
5

The length of a rectangle is 5m longer than its width.

Mathematics
1 answer:
Alex73 [517]3 years ago
3 0

Step-by-step explanation:

P = 2(L + B ), but L = B + 5. so,

P = 2(B+ 5 + B ), B = 16 & L = 21.

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A car travels a distance of 1280 metres at an average speed of 64 kilometres per hour.
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Answer:

The answer is 20 hours

Step-by-step explanation:

This is becuase 1280 divided by 64 equals 20.  There are no unit coversions.

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What fractional part of the bar is blue? ill mark brainliest!
Snezhnost [94]

Answer:

3/6 or 1/2

Step-by-step explanation:

⇒ out of 6 blocks 3 are shaded so, it will be 3/6

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3 0
2 years ago
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Solve the system of equations by substitution. What is the solution for x? 2x + y = 1 4x + 2y = −1
lapo4ka [179]
Solve your system of equations.

2x+y=1;4x+2y=−1

Solve 2x+y=1 for y:

2x+y+−2x=1+−2x(Add -2x to both sides)

y=−2x+1

Substitute (−2x+1) for y in 4x+2y=−1:

4x+2y=−1

4x+2(−2x+1)=−1

2=−1(Simplify both sides of the equation)

2+−2=−1+−2(Add -2 to both sides)

0=−3

Answer: No solution. C)

8 0
3 years ago
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50 points if you answer correctly
rewona [7]

Answer:

f(3) =  {3}^{2}  + 5(3) - 9 \\ f(3) = 9 + 15 - 9 \\ f(3) = 15

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3 years ago
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