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Vesna [10]
1 year ago
3

2/5-t=3+3/2t please show your work Im confused... :-/

Mathematics
1 answer:
vodka [1.7K]1 year ago
8 0
Okay, so let's put it this way : \frac{2}{5} - t = 3 + \frac{3}{2}t.

What can make this easier on you, is converting the fractions into decimals. To do that, you would simply divide the numerator by the denominator. 2 divided by 5, and 3 divided by 2. You would end up with this :

0.4 - t = 3 + 1.5t : Looks much more easier now, sort of. So firstly, let's get rid of those t's. We'll take out that simply t on the left side. To do that, we add t to both sides, because reverse operations, and this has us ending up with :

0.4 = 3 + 2.5t : Because 1.5 + t (which is basically the same thing as 1) is 2.5. Now, we get rid of that 3. It's in our way. We subtract three from both sides. We end up with :

-2.6 = 2.5t : Well, this looks confusing, but we can do it! We have to isolate t, which is the variable, so we divide both sides by 2.5. We end up with :

t = -1.04 (use a calculator for reference, if it helps.)
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6 0
1 year ago
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A. write the equation of the line of best fit
11111nata11111 [884]

Answer:

a. y = (3/5)× x +1

Step-by-step explanation:

y= mx+c

m = (13-4)/(20-5) = 9/15 = 3/5

c= 1

so, y= mx+c becomes y= (3/5) × x +1

6 0
9 months ago
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A sequence of transformations is applied to a polygon. Which of the following statements represent a sequence of transformations
masya89 [10]

Answer:

  C, D

Step-by-step explanation:

Any rigid transformation (rotation, translation, reflection) will result in a <em>congruent</em> polygon. To make a <em>similar</em> (smaller) polygon, a dilation by a factor less than 1 must be used.

C. a dilation about the origin by a scale factor of 2/3 followed by a rotation of 90° counterclockwise about the origin and a translation 5 units left

D. a dilation about the origin by a scale factor of 5/7 followed by a reflection over the y–axis and a dilation about the origin by a scale factor of 3/4

5 0
1 year ago
How to answer this pls.
ehidna [41]

Answer:

x = 11.61 to the nearest hundredth.

Step-by-step explanation:

√(2x - 2) = x - 7

Square both sides:

2x - 2 = (x - 7)^2

2x - 2 = x^2 - 14x + 49

x^2 - 16x + 51 = 0

using the quadratic formula we get x = 4.39 , 11.61.

With radical equations we can get extraneous roots so we check these values:

X = 4.39 :

√(2(4.39) - 2) = 2.61

4.39 - 7 = -2.61   so 4.39 is NOT a root.

x = 11.61

√(2(11.61) - 2) = 4.61

11.61 - 7 = 4.61  so this is a root.

7 0
1 year ago
What is the length of segment SA? show your work please I will give you brainliest​
nirvana33 [79]

Answer:

SA=3

Step-by-step explanation:

9/11.7=10/x

9x=117

117/9=13

13-10=3

8 0
1 year ago
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