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Karo-lina-s [1.5K]
3 years ago
12

5(x-4)=15 find out what x is

Mathematics
2 answers:
irakobra [83]3 years ago
8 0

Answer:

x=7

Step-by-step explanation:

-5*(x-4)-(-15)=0

(0 -  5 • (x - 4)) -  -15  = 0

 35 - 5x  =   -5 • (x - 7)

 -5 • (x - 7)  = 0

    Solve  :    x-7 = 0

Add  7  to both sides of the equation :

                     x = 7

Digiron [165]3 years ago
4 0

Answer:

7

Step-by-step explanation:

7-4=3

5×3=15

plz mark brainliest

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Answer:

Here's what I get  

Step-by-step explanation:

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Toni ate ¾ of a medium sandwich (Figure below).

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Mary Jo ate the same amount as Toni, because ¾ = ⁶/₈

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3 years ago
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Answer:

pretty easy two

Step-by-step explanation:

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Find the midpoint of the segment with the following endpoints.<br> (10, 2) and (5,-7)
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Answer:

Step-by-step explanation:

(10 + 5)/2 = 15/2

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8 0
3 years ago
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nadezda [96]
Linear is the correct answer
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For #4, for any right triangle a^2 + b^2 should equal c^2. Square roots are just numbers to a power of 1/2. You can multiply the exponents together of #^(2 * 1/2) and simply get #. With that in mind, we can use sqrt2 as our a, sqrt3 as b, and sqrt5 as c, since c is always the largest number. For A, sqrt2 squared is 2, for B, sqrt3 squared is 3, and c is 5. Since 2+3 does indeed equal 5 you have a right triangle.

For #5, dilating by 3 means our length will be three times as long as whatever it is there. To find out how long the line is, we can make a right triangle. The differences between the x values are 6, and the differences between the y values are 12. A^2 + b^2 = c^2, 144 + 36 = 180, c= sqrt180, which is approx. 13.416. Multiply that by 3 and you get ≈40.25 as K’L’.
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2 years ago
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