3 years ago

Chetan makes a necklace for his sister. Twelve beads take up 5 inches of string. How many beads fit on 1 foot of string?

Mathematics

2 answers:

il63 [147K]3 years ago

5 0

26.5 beads fit on one foot of string

N76 [4]3 years ago

4 0

You need to divide 12/5= 2 2/5 or 2.4

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Solve the system of Equation (x,y)<br> - 4x + y = 9<br> x – 3y = -6

Margarita [4]

Answer:

$(-\frac{21}{11},\frac{15}{11})$

Step-by-step explanation:

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$- 4x+y =9\\ x-3y = -6$

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$-4x+y=9\\y=4x+9$

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This gives,

$x-3y = -6\\x-3(4x+9)=-6\\x-12x-27=-6\\-11x-27=-6\\-11x=-6+27\\-11x=21\\x=\frac{21}{-11}=-\frac{21}{11}$

Now, plug in $x$ value and solve for $y$ . This gives,

$y=4x+9=4(-\frac{21}{11})+9=-\frac{84}{11}+\frac{99}{11}=\frac{-84+99}{11}=\frac{15}{11}$

Therefore, the solution is $(-\frac{21}{11},\frac{15}{11})$

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