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Studentka2010 [4]
3 years ago
5

12x+40=15x+25 solve for x

Mathematics
2 answers:
Vilka [71]3 years ago
8 0

Answer:

x=5

Step-by-step explanation:

12x+40=15x+25

12x=15x-15

12x=15x-15-15x

-3x=-15

-3x=-15 divide both by -3

answer is 5

fiasKO [112]3 years ago
6 0

Answer:

5 = x

Step-by-step explanation:

12x+40=15x+25

Subtract 12x from each side

12x-12x+40=15x-12x+25

40 = 3x +25

Subtract 25 from each side

40-25 = 3x+25-25

15 =3x

Divide by 3

15/3 =3x/3

5 = x

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A landscaping company charges $50 per cubic yard of mulch plus a delivery charge of $24. Find a
Zigmanuir [339]

Answer: c(x) = $50*x + $24

Step-by-step explanation:

First, this situation can be modeled with a linear equation like:

c(x) = s*x + b

where c is the cost, s is the slope, x is the number of cubic yards of mulch bought, and b is the y-intercept ( a constant that no depends on the number x)

Then we know that:

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2 years ago
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lutik1710 [3]

Answer:

x = 15

Step-by-step explanation:

The sum of the 3 angles in a triangle = 180°

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