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Today at 10:31 PM
Mathematics

Answered

The sum of two numbers is 40. The second number is 5 less than twice the first number. Let x represent the first number and let y represent the second number. What is the value of the first number? Use the table to guess and check.

Answer :

asmaNasr asmaNasr

Today at 10:36 PM

Step-by-step explanation:

x+y=40

y=2x-5

[tex]x = 40 - y \\ y = 2(40 - y) -5 \\ y = 80 - 2y - 5 \\ 3y = 75 \\ y =25 \\ x = 40 - y \\ x = 15[/tex]

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