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frez [133]
2 years ago
9

4(1-x) + 2x = -3( x + 1)

Mathematics
1 answer:
vlada-n [284]2 years ago
8 0

Answer:

x = -7

Solution:

4(1-x) + 2x = -3( x + 1)

4(1 - x) + 2x = -3 (x + 1)

4(-x + 1) + 2x = -3 (x + 1)

-4x - 4 + 2x = -3(x + 1)

-2x + 4 = -3 (x + 1)

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A 85 inch piece of pipe is cut into three pieces, so that the second
nikdorinn [45]

Answer:

<h2>1.  14 in</h2><h2>2. 28 in.</h2><h2>3. 43 in</h2>

Step-by-step explanation:

   x          2x                        3x + 1

|---------|-------------------|---------------------------|

|<-------------------- 85 in ------------------------>|

85 = x + 2x + 3x + 1

85 - 1 = 6x

x = 84 / 6

x = 14

1st piece                   = 14 in

2nd piece = 2(14)     = 28 in

3rd piece = 3(14) + 1 = 43 in

                   ----------------------------

total                          =  85 in

3 0
3 years ago
Find the distance between the points (<br> -<br> 10,12) and (15,12).
Nitella [24]
The distance formula is:

d= \sqrt{(x_1-x_2)^2+(y_1-y_2)^2}

We are given two points in the form (x,y), so plug in the values to the distance formula:

d= \sqrt{(-10-15)^2-(12-12)^2}

Next we can simplify. We know that 12-12 is 0, so we can drop it from the equation, as it will not affect our answer. Also, we know that -10-15 is -25:

d= \sqrt{(-25)^2}

The square and square root cancel each other out leaving us with 25.

The answer is 25.


5 0
3 years ago
Mara's family is driving to her grandmothers' house. The family travels 239.4 miles be-
creativ13 [48]

Answer:

Give brainliest please! The answer is 53.2 mph

Step-by-step explanation:

Mara's family travels 239.4 miles between the hours of 9:10 a.m. to 1:40 p.m.

1:40 p.m. is 13:40.

Thus, they traveled for

13 hours 40 minutes - 9 hours 10 minutes = 4 hours 30 minutes

that is  hours.

Use formula:

where

D = distance

r = rate

t = time.

In your case,

D = 239.4 miles

t = 4.5 hours

7 0
3 years ago
Find the measure of ∠2.<br><br> and how did you find the answer??
Rufina [12.5K]
The 2 lines are parallel, so the 2 sides(e.g. 1 and 2/ 3 and 49) add up = 180 and In this case the 2 sides are equal as u can see from the original diagram so the angle  of 2 is 180-49=131.

5 0
3 years ago
A card is drawn from a standard deck of cards. What is the probability
Black_prince [1.1K]
The probality is 69 420
3 0
3 years ago
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