Ms.Carger has has to send some emails in the afternoon.It takes her 3 minutes to start up her computer and log-in to her email,
1 answer:
Answer:
Ms. Carger would have sent emails in x minutes
Step-by-step explanation:
Firstly, Ms. Carger takes her 3 minutes to start up her computer and log-in to her email.
Therefore in x minutes, after starting up her computer and logging-in to her email, she would have x minutes minus the time used to start up her computer and log-in to her email. this implies she would have (x-3) minutes left for sending emails.
Since it takes 7 minutes to write and send each email, in (x-3) minutes she would be able to send only emails.
Therefore equation to represent the number of emails she can send in x minutes is emails
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Answer:
Yes, she is correct.
Step-by-step explanation:
Given equation,
By estimation :
Since, 1/8 = 0.125 ≈ 0, while, 3/4 = 0.75 ≈ 1
⇒
And,
Since, is near to 2.
Hence, she is correct.
Solving the system of equations we get x=5 and y=10.5
Step-by-step explanation:
We need to solve the system of equations by substitutions.
The system of equations given are:
Let:
Putting value of y from eq(2) into eq(1)
So, value of x=5
Now putting value of x in eq 1 to find value of y:
So, value of y is 10.5
Solving the system of equations we get x=5 and y=10.5
Keywords: System of equations
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