Answer:
5 hours
Step-by-step explanation:
Erin needs $100 to pay the bill.
She has $25 in the bank.
First let's find how much money she needs more
She needs $75
They said that,
she earns $15 per hour from her job.
Let the unknown hours be x.
Now let's find the hours she have to work to earn $75
1h = $15
x = $75
Use cross multiplication
She needs to work for <u>5 hours</u> in order to have the $100
Hope this helps you.
Let me know if you have any other questions :-)
Literal equation:
we know that
literal equation is equation of more one variable
for example:
And we can solve such equations only if we are given two such equation
because it has two variables
One variable equation:
such equation has single variables
for example:
we don't need any other equation
we can solve for variables from single equation itself
because it has only one variable that is x
Answer:
x = -4 and x = 5
Step-by-step explanation:
Since and
both equal to y, we know that the expressions equal to each other. We can write a new equation base on that.
Now we solve the equation.