Standard form : Ax + By = C
12y = 9x - 30
-9x + 12y = -30 ....some teachers accept this, with A being negative
but if not, then it is this :
9x - 12y = 30
Answer:
The mass of the last screw added is 3.855 grams.
Step-by-step explanation:
if you take 84.81 and subtract the original mass you should get the weight that was added.
Hope this helps.
Answer:
0.25
Step-by-step explanation:
1 divided by 4
Answer:
99 people is the answer
Step-by-step explanation:
.48 x 208 = 99
There are 146 - 84 = 62 girls
ratio is 84:62
simplifies to 42:31
