3 years ago

X= 3 is not a solution to 12 + x = 16 Why not?

Mathematics

2 answers:

stich3 [128]3 years ago

7 0

Just substitute 3 for x, 12 + 3 = 15, not 16..

Inga [223]3 years ago

4 0

Because 12 + 3 is not equal to 16...

You might be interested in

Identify a possible first step using the elimination method to solve the system and then find the solution to the system. 3x + 2

mrs_skeptik [129]

A) Multiply second equation by 2, solution

8 0

3 years ago

–8x3 – 2x2 – 12x – 3

Alex777 [14]

$- 40x - 3$

.....................llollllllllllllllllkkkkkkkkkkkkkk

7 0

2 years ago

Find the zero of polynomial 7x+5

boyakko [2]

Answer:

$x=-5/7$

Step-by-step explanation:

we have

$f(x)=7x+5$ ----> The degree of this polynomial is 1 (linear equation)

Remember that

The zero of the polynomial is the value of x when the value of f(x) is zero

For f(x)=0

$0=7x+5$

solve for x

$x=-5/7$ ----> the zero of the polynomial or x-intercept

4 0

3 years ago

A refrigerator costs $1200 wholesale. If the mark-up on the refrigerator is 20%, what is the new price?

shutvik [7]

Answer:

The answer is $960

20% of $1200 is $240

So $1200 - $240 = $960

8 0

3 years ago

Heather took one of her friends out to lunch. The lunches cost $100 and she paid 9% sales tax. If Heather left a 15% tip on the

Allushta [10]

Answer:

124 is the total

Step-by-step explanation:

100 * .09 = 9

100 * .15 = 15

15+ 9 + 100 = 124

Hope it helps!

7 0

3 years ago