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olganol [36]
3 years ago
12

8y-2=-18 what is the answer

Mathematics
1 answer:
enot [183]3 years ago
4 0
The answer is: y=-2
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Solve for b in the literal equation y = 11x + 11b
bekas [8.4K]

Answer:

<h2>b = y/11  -x </h2>

Step-by-step explanation:

y = 11x + 11b\\Move \: 11x\:to\:the \:left\:and\:change\:its\:sign\\\\y -11x =11b\\\\Divide\:both\:sides\:of\:the\:equation\:by\: 11\\\frac{y}{11} -\frac{11x}{11} = \frac{11b}{11} \\y/11 -x =b\\\\b = \frac{y}{11} - x

7 0
3 years ago
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What is the probability the dice sum to 8 given that both dice show even numbers?
Ber [7]
With 2 dices we have all 6x6=36 ways.
But for two conditions: sum 8 and both even numbers, we have only: (2;6), (6;2), (4;4). That's all.
And the probability is 3/36= 1/12
Have fun
7 0
4 years ago
The ratio of boys to girls in a class is 7:5. There are 36 students in the class. How many
scoray [572]

Answer:

There are 15 girls and 21 boys

Step-by-step explanation:

4 0
3 years ago
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TechWiz Electronics makes a profit of $35 for each MP3 player sold and $18 for each DVD player sold. Last week, TechWiz sold a c
Svetllana [295]

Let x be the number of MP3 players TechWiz sold last week.

If TechWiz sold in total 130 MP3 and DVD players, then it sold (130-x) DVD players.

1. TechWiz Electronics makes a profit of $35 for each MP3 player sold, then it makes a profit $35x for x MP3 players sold.

2. TechWiz Electronics makes a profit of  $18 for each DVD player sold , then it makes a profit $18(130-x) for (130-x) DVD players sold.

3. An expression for the combined total profit (in dollars) TechWiz made from MP3 and DVD players last week is

35x+18(130-x).

You can simplify it:

35x+2,340-18x=17x+2,340

Answer: 35x+18(130-x) or 17x+2,340

8 0
3 years ago
Which shows the equation below written in the form ax^2+bx+c=0?
mash [69]
2x^2 - 3 = -4x - 1
2x^2 + 4x - 3 + 1 = 0
2^2 + 4x - 2 = 0 <==
5 0
3 years ago
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