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Inessa05 [86]
3 years ago
8

What is the answer to 18 - 3w = 4w

Mathematics
1 answer:
adelina 88 [10]3 years ago
4 0

Answer:

Step-by-step explanation:

18 - 3w = 4w

Let's get all of the terms with the w on the right-hand side of the equation, and everything else on the left-hand side of the equation.

To do this, we should add 3w to both sides of the equation to remove the -3w from the left-hand side of the equation:

18 - 3w + 3w = 4w + 3w

18 = 7w

Finally, to get the w by itself, we can divide both sides by 7:

\frac{18}{7} = \frac{7w}{7}

w = \frac{18}{7}

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What is the additive identity of rational number​
Burka [1]

Answer:

zero(0)

Step-by-step explanation:

The additive identity of a set of number is a number such that the its sum with any of the numbers in the set would give a result that is equal to the number in that set.

In other words, say for example the set of numbers is rational, the additive identity of rational numbers is 0. This is because, given any rational number say <em>x</em>, adding zero to the number <em>x</em> gives the same number <em>x. </em>i.e

x + 0 = x

If x is say 2, then we have;

2 + 0 = 2

Since adding zero to rational numbers gives has no effect on the numbers, then zero (0) is the additive identity of rational numbers.

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3 years ago
A rabbit can run 35 miles per hour.A fox can run 21 miles in half an hour.Which animal is faster and how much
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Answer:


Step-by-step explanation:

The fox is faster. Because he is a fox.


Also because he can (assuming he doesn't fatigue or get caught by hounds in the second half of the hour) run 42 miles in 1 hour.


The rabbit runs 35 miler per hour.


Velocity = Distance/time


Fox velocity = 21 miles/0.5 hour


Dividing by 0.5 is the same as multiplying by 2, so...


Fox velocity = 42 miles/hour

6 0
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A birthday party host planned for 20 people, but 17 actually attended. What is the percent error?​
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Answer: 29% i believe is the answer

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Answer:

X=30; Z=80; Y=70

Step-by-step explanation:

The straight lines equal 180 and you subtract 180 to 150 and 180 to 100 to get 30 and 80 and the inside of a triangle is 180 and you subtract 30 and 80 to 180 to get 70.

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Answer (least to greatest):

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I hope this helps!

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