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3 years ago

Consider the equation 2x+1=16

Mathematics

2 answers:

Aliun [14]3 years ago

6 0

Step-by-step explanation:

2x + 1 = 16

2x = 15 (subtract 1 on both sides)

x = 7.5 (divide 2 om both sides)

Since 7.5 is not an integer, (a) is No.

However 7.5 is rational, therefore (b) is Yes.

photoshop1234 [79]3 years ago

6 0

Answer:

$2x + 1 = 16 \\ 2x = 15 \\ x =\frac{15}{2} \\ \boxed{x = 7.5 }$

a. Does the equation have a solution in the set of integers? ____

→As 7.5 is not a integer, the right answer is No.

b. Does the equation have a solution in the set of rational numbers? ____

→7.5 is a rational number, the right answer is Yes.

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Lana71 [14]

Answer: y = $\frac{x}{2}$ + 2.5

Step-by-step explanation:

The formula for finding the equation is given as :

$\frac{y-y_{1} }{x-x_{1} }$ = $\frac{y_{2}-y_{1} }{x_{2}- x_{1} }$

From the points given:

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Substituting into the formula , we have:

$\frac{y-6}{x-7}$ = $\frac{2-6}{-1-7}$

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4 years ago

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vovikov84 [41]

Answer:

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