The answer to your question would be D
Do multiplication first than divide
first add an than subtract
Answer:
21 mails
Step-by-step explanation:
Let there are x no of texts and y no of emails.
Condition 1,
x+y = 20 ...(1)
Condition,
x=2y-1 ...(2)
Put the value of x from equation (2) in (1). So,
(2y-1)+y = 20
Taking like terms together,
2y-y=20+1
y=21
So, Devin sent 21 mails,.
Answer:
8
Step-by-step explanation:
That is the quetion that sal khan explaind in the vid BOI
