Megan buys 3 bracelets and 3 necklaces. Each bracelet costs 5. Megan pays on 40 and gets 4 change. what is the cost of one neckl

On the 12th day, he completed a mile

The answer It will be D.

Josh struck out 189 batters.

<h3><u>Given </u><u>:</u><u>-</u></h3>

• Here, We have given two equations that is ,
• 

<h3><u>To </u><u>Find </u><u>:</u><u>-</u></h3>

• We have to find the value of x and y.

<h3><u>Concept</u><u> </u><u>used </u><u>:</u><u>-</u></h3>

• Linear equations are those equations which having highest power of degree as 1 .
• Linear equations can be solved by subsitute method, elimination method and cross multiplication method.
• Here, I have used substitution method to make calculation easier.
• In subsitute method, you have to subsitute the value of one variable of eq(1) in eq(2) .

<h3><u>Let's </u><u>Begin </u><u>:</u><u>-</u></h3>

<u>Here</u><u>,</u><u> </u>

• We have two equations, let consider these two equations as eq(1) and eq(2) that is,

<u>By </u><u>solving </u><u>eq(</u><u>1</u><u>)</u><u> </u><u>:</u><u>-</u>

<u>Subsitute </u><u>eq(</u><u>3</u><u>)</u><u> </u><u>in </u><u>eq(</u><u>2</u><u>)</u><u> </u><u>:</u><u>-</u>

Thus, The value of y is 5

<h3><u>Now</u><u>, </u></h3>

<u>Subsitute </u><u>the </u><u>value </u><u>of </u><u>y </u><u>in </u><u>eq(</u><u>1</u><u>)</u><u> </u><u>:</u><u>-</u>

Hence, The value of x and y are 5 and 3 .

<h3><u>Equation </u><u>1</u><u> </u><u>:</u><u>-</u></h3>

<h3><u>Equation </u><u>2</u><u> </u><u>:</u><u>-</u><u> </u></h3>

Answer:

I believe it would be D