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marshall27 [118]
3 years ago
12

A bag contains red marbles and black marbles. For every 1 black marble,

Mathematics
1 answer:
Solnce55 [7]3 years ago
7 0
There are 101 red marbles.
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Solve algebraically please URGENT <br> y=5x−7 <br> −6x−4y=−24
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\left\{\begin{array}{ccc}y=5x-7\\-6x-4y=-24&\text{divide both sides by (-2)}\end{array}\right\\\left\{\begin{array}{ccc}y=5x-7&(*)\\3x+2y=12&(**)\end{array}\right\\\\\text{substitute }\ (*)\ \text{to}\ (**):\\\\3x+2(5x-7)=12\qquad\text{use distributive property}\\\\3x+(2)(5x)+(2)(-7)=12\\\\3x+10x-14=12\qquad\text{add 14 to both sides}\\\\13x=26\qquad\text{divide oth sides by 13}\\\\\boxed{x=2}\\\\\text{Put the vaalue of x to}\ (*):\\\\y=5(2)-7\\\\y=10-7\\\\\boxed{y=3}\\\\Answer:\ \boxed{x=2\ and\ y=3\to(2,\ 3)}

7 0
3 years ago
Please help!! 10 points up
Contact [7]
It is A. x = 2√3, y = 4√3
3 0
3 years ago
NEED HELP ASAP!!!!!!
melamori03 [73]
Okay so you can add up all the marbles to find a rate and divide.
Total: 20 marbles
Blue: 25% chance
Red: 40% chance
Green: 45% chance
8 0
2 years ago
Read 2 more answers
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