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Wittaler [7]
3 years ago
5

Balancing the equations

Mathematics
1 answer:
erastovalidia [21]3 years ago
8 0
The first one is 1, 1, 1. the second one is 3, 4, 1, 4.
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emma lee is shopping for supplies for her science project. The regular price of the supplies at a hardware store is $20. The sto
zmey [24]

Answer:

First, you add 30 and 20, and you get 50. Then, since 30 is your highest priced item, you find 0.30 of 30, which is 9. After that you would subtract 9 from 30, which gives you 21. Therefore, we know the price is 41

Step-by-step explanation:

7 0
2 years ago
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5 0
3 years ago
X + 5 &lt; –4<br><br> Solve for x.<br> Answer must be simplified.
Monica [59]

Answer:

x < -9

Step-by-step explanation:

Hi there,

To isolate the variable x, you do the same steps like solving a regular equation.

x + 5 < -4      ← subtract 5 from both sides to make x by itself

x < -9            ← final answer (already in simplest form)

Hope this explanation helps. Cheers.

3 0
3 years ago
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What does it mean if two equations have no solution ?
Alex787 [66]

Answer:

this means there is no answer to the problem

Step-by-step explanation:

3 0
3 years ago
A blind taste test will be conducted with 9 volunteers to determine whether people can taste a difference between bottled water
Aloiza [94]

Answer:

The answer is \frac{1}{256}

Step-by-step explanation:

If we assume that people cannot taste a difference between bottled water, then the probability of identifying tap water is 0.5

Thus, P(identify tap water)=0.5

The probability that at least 8 of the 9 people identify the tap water correctly is the sum of the probabilities

  • 8 of 9 people identified correctly or
  • 9 of 9 people identified correctly

Since P(identify tap water)=0.5 each probabilities are the same and equal to

0.5^9 =\frac{1}{512}

So we have 2*\frac{1}{512} = \frac{1}{256}

6 0
3 years ago
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