All categories

4 years ago

My question is 4(2 - W) + w = 20

Mathematics

2 answers:

irina1246 [14]4 years ago

4 0

Answer:

w = -4

Step-by-step explanation:

4(2 - W) + w = 20

Distribute:

8 - 4w + w = 20

Subtract 8 from both sides:

-4w + w = 12

Simplify:

-3w = 12

Divide:

w = -4

Double check your work by substitution:

4(2 - W) + w = 20

4(2 - (-4)) + (-4) = 20

4(6) + (-4) = 20

24 + (-4)= 20

20 = 20

Since we know that 20 does equal 20, we can conclude that the final answer is:

w = -4

OLEGan [10]4 years ago

3 0

Answer:

- 4

Step-by-step explanation:

Step 1:

4 ( 2 - w ) + w = 20 Equation

Step 2:

8 - 4w + w = 20 Multiply

Step 3:

8 - 3w = 20 Combine Like Terms

Step 4:

- 3w = 12 Subtract 8 on both sides

Answer:

w = - 4

Hope This Helps :)

You might be interested in

Which of the following represents the figure

andreyandreev [35.5K]

It is the frist onn so you know

5 0

3 years ago

Make m the subject of the formula m/v - t/b = m-t/r

RoseWind [281]

Answer:

$m = - \frac{ \frac{t}{b} + \frac{t}{r} }{1 - \frac{1}{v} }$

Step-by-step explanation:

$\frac{m}{v} - \frac{t}{b} = m - \frac{t}{r} \\ \frac{m}{v} - \frac{t}{b} + \frac{t}{r} = m \\ - \frac{t}{b} + \frac{t}{r} = m - \frac{m}{v} \\ - \frac{t}{b} + \frac{t}{r} = m(1 - \frac{1}{v} ) \\ - \frac{t}{b} + \frac{t}{r} = \frac{m( 1 - \frac{1}{v}) }{(1 - \frac{1}{v}) } \\ - \frac{ \frac{t}{b} + \frac{t}{r} }{1 - ( \frac{1}{v} ) } = m$

3 0

3 years ago

Need the answer to this quickly, help!!!

topjm [15]

The answer choice is A

3 0

3 years ago

Numbers that are greater than 5 and less than 5.75

Goshia [24]

The easy way to think about this is what number comes between 5 and 7? The answer is 6 (but we have to consider that it's negative in this case.) So the answer is -6 Another way to look at it is with a number line (not to "Which number is greater than -7 and less than -5"? scale.)<===(-7)==(-6)==(-5)==(-3)==(-2)==(-1)==(0)==(1)==>Notice how -6 comes between the two numbers. -6 is larger than -7 (it's "less negative" -- "Which number is greater than -7 and less than -5"? closer to zero) -6 is less than -5 (it's "more negative" -- further away from zero)

5 0

3 years ago

Read 2 more answers

U 1995, 70% of all children in the U.S. were living with both parents. If 25 children were selected at random in the U.S., what

nikdorinn [45]

Answer:

The probability that at most 10 of them will be living with both of their parents is 0.0018

Solution:

Given, US 1995, 70% of all children in the U.S. were living with both parents. 25 children were selected at random in the U.S.,

We have to find what is the probability that at most 10 of them will be living with both of their parents?

Now, number of children picked (n) = 25.

Probability to be with parents = 70% = 0.7.

Our condition is 0 ≤ x ≤ 10.

Then, we have to calculate p(0 ≤ x ≤ 10).

We can calculate using binomial cumulative distribution frequency- binomial CDF

Now, p(0 ≤ x ≤ 10) = binomcdf(n, p, x) = binomcdf(25, 0.7, 10) = 0.00177840 ≈ 0.0018.

Hence, the probability is 0.0018

6 0

3 years ago