Answer: c = -7
Step-by-step explanation:
-4 + c = -11
c = -7
Answer: he worked 32 hours and make $512
Answer:
805.5 out of 900
Step-by-step explanation:
A test is out of 100 and because there are 9 tests: 9 x 100 which equals 900.
To get the average we add up each test mark and divide by the number of tests. The same can be applied here but reversed. So because there were 9 tests we can multiply 89.5 by 9 which gives us 805.5. Beverly scored 805.5 marks out of 900 which makes her average 89.5% for 9 tests.
-- Subtract 17 from each side --- b/3 = 31 --- Multiply each side by 3 --- b = 93 . Note that you don't 'move' things from one side to the other. You simply do the same thing to both sides.
