Provide an appropriate response.A student solved the system of equations x + 2y = 43x + 6y = 12for x in the first equation, and substituted into the second equation. The y's also disappeared in the process. The student claimed that the system of equations has no solution. Is this correct?
Fill in the blank(s) with the appropriate word(s).
No
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Rewrite the following in its equivalent decimal form.2 ? 10-1 + 4 ? 10-4 + 9 ? 10-5 + 9 ? 10-6
A. 2.000499 B. 2.00499 C. 0.200499 D. 200,499
Solve the problem.Find the measures of the supplementary angles.
A. 101.25° and 78.75° B. 202.5° and 157.5° C. 50.63° and 39.38° D. 96.25° and 83.75°
Solve.Body mass index is given by the formula I = 
, with W being the person's weight (in pounds). Mary's height is 63 in. What weights W will allow Mary to keep her body mass index I between 18.5 and 25? Round the answer to the nearest tenth of a pound.
A. 95.3 lb < W < 127 lb B. 104.2 lb < W < 140.8 lb C. 123 lb < W < 146.9 lb D. 1.7 lb < W < 2.2 lb
Solve for the variable.-5x + 9 = -10 + 4x
A. x = - 
B. x = 
C. x = 
D. x = 1