Solve the following 19+n=30

Mathematics

2 answers:

Sliva [168]3 years ago

6 0

Answer:

n=11

Step-by-step explanation:

19+n=30

n=30-19

n=11

Taya2010 [7]3 years ago

4 0

Answer:

n=11

Step-by-step explanation:

In order to solve this equation, we need to find out what n is. We have to get n by itself on one side of the equation. Perform the inverse operations to both sides of the equation.

19+n=30

19 is being added to n. The inverse of addition is subtraction. Subtract 19 from both sides.

19-19+n=30-19

n=30-19

n=11

Let's check out solution. Plug 11 in for n in the original equation.

19+n=30

19+11=30

30=30

The statement above is true, so we know our solution is correct.

You might be interested in

10 gallons equal how many cups

leonid [27]

If one gallon equals to 16 cups, then 16 * 10 will be your answer.

10 * 16 = 160

3 0

3 years ago

Read 2 more answers

The quadratic function: <img src="https://tex.z-dn.net/?f=y%3D-x%5E2-8x%2B1" id="TexFormula1" title="y=-x^2-8x+1" alt="y=-x^2-8x

pav-90 [236]

Answer:

2) (-∞, 17]

Step-by-step explanation:

The leading coefficient of the function is negative, so the parabola opens downward. The vertex will be a maximum, the upper end of the range. The lower end of the range will be -∞.

The vertex of the function lies on the axis of symmetry. The maximum can be found by evaluating the function at x=-4.

y = -(-4)² -8(-4) +1 = -16 +32 +1 = 17

The range of the function is (-∞, 17].