This should be a basic system of equations problem
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12x + 4y = 152
32x + 12y =420
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First solve 12x + 4y = 152 for x
Add -4y to each side
<span>12x+4y
+-4y</span>=<span>152
+-<span>
4y
</span></span>12x=-<span>4y+<span>152
</span></span>----------------------------
Divide each side by 12
12x ÷ 12 =
x = -1/3y + 38/3
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Substitute -1/3y + 38/3 for x in 32x+12y=<span>420
</span>32(-1/3y + 38/3)+12y=420
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Simplify each side
4/3y + 1216/3 = 420
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Add -1216/3 on each side
4/3y + 1216/3
+ -1216/3 = 420
+ -1216/3
4/3y = 44/3
-------------------------
Divide each side by 4/3
4/3y ÷ 4/3 = 44/3 ÷ 4/3
y = 11
y = 11 is your answer
Answer:
7/9m=11/6 i believe is the answer.
Answer:
22629
Step-by-step explanation:
Answer:
A
Step-by-step explanation:
A trail would consist of three random digits.
The problem asks for the probability that it will take at least a sample of four to find one person with brown hair. This implies that the first three people do not have brown hair. Therefore, a trial would consist of three random digits. A success is none of the three digits are 0, 1, 2, or 3. For example, 675 would be a success and a failure would be 792.
Answer: 3
Step-by-step explanation: 18/6=3