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olga_2 [115]
3 years ago
11

???? Help please you get 40 points if u help

Mathematics
2 answers:
IrinaVladis [17]3 years ago
6 0

Answer:

B) P = 8x + 4

Step-by-step explanation:

Formula:

P= 2( l + w)

P = 2( x + 2 + 3x)

P = 2(4x + 2)

P = 8x + 4

IRISSAK [1]3 years ago
4 0
B) P=8x+4
Hop this helped
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Y= 1/2x-4 and y= -2x-9 what is the solution of equations
azamat

Answer:

(x,y)=(-2,-5)

Step-by-step explanation:

y=1/2x-4

y=-2x-9

(y=) 1/2x-4=-2x-9

1/2x +2x=-9+4

1/2x +4/2x=-5

5/2x=-5

5x=-5*2

5x=-10

x=-2

x=-2

y=-2x-9=-2*(-2)-9=4-9=-5

(x,y)=(-2,-5)

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A cyclist travels 7.7 km in 30 minutes. <br> What is his average speed in km/h?
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2 years ago
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LUCKY_DIMON [66]

Answer: Ray B

Step-by-step explanation:

5 0
3 years ago
What is 3/4 of 16/21? worked out please
timofeeve [1]
Of means multiplication

So

\frac{3}{4} \sf{of}  \frac{16}{21}  =  \frac{3}{4} \times  \frac{16}{21}

And then simplify the numerator ad denominator

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And simplify the numerator and denominator again

= \frac{\ 1 \times 16}{4 \times 7} = \frac{\ 1 \times 4}{1 \times 7}

And we are finally left with the answer which is \frac{4}{7}
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Four rivers offers a better deal because It costs Jane much less interest as opposed to Mystic bank. 
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