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wlad13 [49]
3 years ago
8

Which expression is equivalent to 2w?

Mathematics
1 answer:
zhannawk [14.2K]3 years ago
8 0

Answer:

The first one.

Step-by-step explanation:

w + w is having 2 w's, which is obviously 2w.

2w + w would be equal to 3w.

2w - w would be equal to w.

w + 2 is just w + 2.

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(5/2)x=5 please help me
alekssr [168]

Answer:

x=2.5

Step-by-step explanation:

2.5x=5

subtract 2.5 from itself and 5

x=2.5

4 0
3 years ago
The length of a rectangle is 3.5 inches more tan its width. The perimeter of the rectangle is 31 inches. Find the length and the
leonid [27]

Length (L): w + 3.5

width (w): w

Perimeter (P) = 2L + 2w

                31 = 2(w + 3.5) + 2(w)

                31 = 2w + 7 + 2w

                31 = 4w + 7

               24 = 4w

                 6 = w

Length (L): w + 3.5   = (6) + 3.5   = 9.5

Answer: width = 6 inches, length = 9.5 inches


8 0
3 years ago
I need help and please have the work with the ones that are harder
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3 years ago
What's the greatest number of pill bugs found
Nimfa-mama [501]
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6 0
4 years ago
Write the point-slope form of an equation of the line through the points (-4, 7) and (5, 3).
cupoosta [38]

Answer:

y-7=-\frac{\displaystyle 4}{\displaystyle 9}(x+4)

OR

y-3=-\frac{\displaystyle 4}{\displaystyle 9}(x-5)

Step-by-step explanation:

Hi there!

Point-slope form: y-y_1=m(x-x_1) where m is the slope and (x_1,y_1) is a point that falls on the line

<u>1) Determine the slope (</u><em><u>m</u></em><u>)</u>

m=\frac{\displaystyle y_2-y_1}{\displaystyle x_2-x_1} where two given points are (x_1,y_1) and (x_2,y_2)

Plug in the given points (-4, 7) and (5, 3):

m=\frac{\displaystyle 3-7}{\displaystyle 5-(-4)}\\\\m=\frac{\displaystyle 3-7}{\displaystyle 5+4}\\\\m=\frac{\displaystyle -4}{\displaystyle 9}

Therefore, the slope of the line is -\frac{\displaystyle 4}{\displaystyle 9}. Plug this into y-y_1=m(x-x_1) as m:

y-y_1=-\frac{\displaystyle 4}{\displaystyle 9}(x-x_1)

<u>2) Plug a point into </u>y-y_1=-\frac{\displaystyle 4}{\displaystyle 9}(x-x_1)<u />

y-y_1=-\frac{\displaystyle 4}{\displaystyle 9}(x-x_1)

Because we're given two points, there are two ways we can write this equation:

y-y_1=-\frac{\displaystyle 4}{\displaystyle 9}(x-x_1)\\\\y-7=-\frac{\displaystyle 4}{\displaystyle 9}(x-(-4))\\\\y-7=-\frac{\displaystyle 4}{\displaystyle 9}(x+4)

OR

y-3=-\frac{\displaystyle 4}{\displaystyle 9}(x-5)

I hope this helps!

4 0
3 years ago
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