Step-by-step explanation:
x = n of years of mary
x+8= n of years of her bro
So her brother is (x+8)/x times as old as Mary
Answer:
Part A: T(x) = $49.99x + $499.00
Part B: $748.95
Part C: T(x) = $49.99x + $24.99y + $499.00
Part D: $773.93
Step-by-step explanation:
Part A:
Let x represent the amount of games bought. Let T(x) represent total cost.
T(x) = $49.99x + $499.00
Part B:
T(x) = $49.99(5) + $499.00
T(x) = $249.95 + $499.00
T(x) = $748.95
Part C:
Let y represent the amount of controllers bought.
T(x) = $49.99x + $24.99y + $499.00
Part D:
T(x) = $49.99(4) + $24.99(3) + $499.00
T(x) = $199.96 + $74.97 + $499.00
T(x) = $773.93
Answer:
4n^2
Step-by-step explanation:
8n+4n^2-8n
The first 8n + the other 8n is 0 because you combine like terms
Answer:
answer is -3
Step-by-step explanation:
we know -,+ is -. so minus, plus is minus(here minus and plus are the signs given. opposite signs give minus wheras same signs give plus)
so, first we should subtract 7 minus 4 is 3,.
then we should insert the minus because the greater number has the minus sign. ( you should always insert a sign of a greater number after substituting)
