The correct option is option (d) 8 hours.
Amelia need to work for 8 hours to buy new sweater $40.
<h3>What is an equation and its solution?</h3>
When two expressions are connected with the equals sign (=) in a math equation, it expresses the equality of the two expressions. A number that may be entered for the variable to produce a true number statement is the solution to an equation.
Let the hours Amelia need to work=h
Amalia paid=$20
Payment of each hour=$2.50
So, we can make an equation with given problem
40=20+2.50h
40-20=2.5h
20=2.5h
![h=\frac{20}{2.5}](https://tex.z-dn.net/?f=h%3D%5Cfrac%7B20%7D%7B2.5%7D)
h= 8
So, Amelia need to work for 8 hours to get $40.
To know more about equation, visit: brainly.com/question/14603452
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Answer:
<em>Solve for the first variable in one of the equations, then substitute the result into the other equation.</em>
<em>Solve for the first variable in one of the equations, then substitute the result into the other equation.Point Form:</em>
<em>(√102,−32),(−√102,−32)</em>
<em>Equation Form:</em>
<em>x</em><em>=√10</em><em>/</em><em>2,y</em><em> </em><em>=</em><em> </em><em>−3</em><em>/</em><em>2</em>
<em>x</em><em>=−√10</em><em>/</em><em>2,</em><em>y</em><em> </em><em>=</em><em> </em><em>−3</em><em>/</em><em>2</em>
Hey there!
For this problem you need to replace x with 45
So the new problem is 2(45)+4
2 x 45 = 90
then 90+4 = 94
Your answer is 94
Hope I was able to help!
Answer:
No
Step-by-step explanation: