Write the following as a base-10 numeral in standard form.
4 x 105 + 2 x 102 + 7 =

9514 1404 393

  400207

Step-by-step explanation:

Any calculator can form this sum for you. It is ...

  4×10^5 +2×10^2 +7

  = 400,000 +200 +7

  = 400207

darn right!

step-by-step explanation:

steve kerr's sons name is let that skin in.

x = -3

y = -18

step-by-step explanation:

to solve by substitution, substitute one variable and solve for the other. then substitute again to find the remaining variable.

x-1/3(3x-9) = -3 since y=3x-9 substittute y.

x-1/3(3x-9)=-3

x + x +3 = -3

2x+3=-3

2x+3-3= -3-3

2x=-6

x=-3

substitute again into y=3x-9

y=3(-3)-9

y=-9-9

y=-18