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3 years ago

The value of n needed to make the equation true. n+19=40

Mathematics

2 answers:

dezoksy [38]3 years ago

7 0

Answer: n = 21

Step-by-step explanation: When you're asked to solve for <em>n</em> in an equation, what your really being asked to do is to get <em>x</em> by itself on one side of the equation.

In this problem, since 19 is being added to <em>n</em>, in order to get <em>n</em> by itself, we must subtract 19 from the left side of the equation and when we subtract 19 from the left side of the equation, remember that we must also subtract 19 from the right side of the equation.

So on the left, +19 and -19 cancel eachother out and

on the right, 40 - 19 is 21 so <em>n = 21</em>.

We can check our answer by substituting

a 21 back into the original equation.

So we have (21) + 19 = 40 or 40 = 40.

Schach [20]3 years ago

6 0

Answer:

n = 21

Step-by-step explanation:

Given

n + 19 = 40 ( subtract 19 from both sides )

n = 40 - 19 = 21

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3 years ago

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3 years ago

Write the expression in word form 12÷6×2

finlep [7]

Answer:

Twelve divide by six times two.

Step-by-step explanation:

To solve this problem, first you have to use the order of operations stands for parenthesis, exponents, multiply, divide, add, and subtract from left to right.

First, multiply & divide numbers from left to right.

$\displaystyle 12\div6\times2$

$\displaystyle 12\div6=2$

$\displaystyle 2\times2=4$

Therefore, the correct answer is twelve divide by six times two or 4.

<h2>Hope this helps!</h2><h2 /><h2>Have a wonderful blessing day! :)</h2><h2 /><h2>Good luck! :)</h2>

6 0

3 years ago

Suppose that $1,000 is deposited into an account that yields

Lana71 [14]

ANSWER : $1,215.51

P= Principal = $1000
R= rate = 5% = 0.05
N= number or periods in 1 year (1 time pre year)
T= time expressed in years = 4 years

A= P (1 + r/n) nxt
= 1,000 (1+ 0.05/1) 1x4
= 1,215.51

6 0

3 years ago

What are the remaining angle measures if the figure is to be a parallelogram?

Kobotan [32]

Answer:

We conclude that:

m∠B = 101°

m∠C = 79°

m∠D = 101°

Step-by-step explanation:

Given the parallelogram ABCD

We know that a parallelogram has opposite angles that are congruent.

Here,

The angles ∠A and ∠C are opposite angles.

Thus,

∠A = ∠C

The angles ∠B and ∠D are opposite angles.

Thus,

∠B = ∠D

<u>Determining the measure of angles of a parallelogram:</u>

∠A = 79°

We know

∠A = ∠C

Thus, the measure of the angle ∠C is:

m∠C = 79°

We know that the sum of the measure of two consecutive angles is 180°.

As ∠A and ∠D are consecutive angles, so

∠A + ∠D = 180°

substituting ∠A = 79° in the equation

79° + ∠D = 180°

subtracting 79° from both sides

79° + ∠D - 79° = 180° - 79°

∠D = 101°

Thus, the measure of the angle D is:

m∠D = 101°

We know that the angles ∠B and ∠D are opposite angles.

Thus,

∠B = ∠D

so if m∠D = 101° then ∠B is also 101°.

Therefore, the measure of angle B is:

m∠B = 101°

Hence, we conclude that:

m∠B = 101°

m∠C = 79°

m∠D = 101°

7 0

2 years ago