Ten times the value of 2 in 7283
Heath needs to end up with 10L of solution,
of which 9L is bleach. So let m = liters of 20%
solution needed. Then .20m liters of that are bleach.
He must then add p liters of bleach to make
a total of 10 L. That is, p + m = 10. So the system is
m + p = 10, .20m + p = 9. Solving,
<span>m = 1.25 L 20% solution, and thus p = 8.75 L bleach.</span>
Removing the brackets gives 4a -2b +c -5c - a + 4b and then collect the like terms to get 3a + 2b - 4c
Answer:
10000
Step-by-step explanation:
10 has 1 zero. 1000 has 3 zeros. Put these zeroes together to get 0000. Add one to the left, and you get 10000.
Answer:
B. 7/2, -8/3
Step-by-step explanation:
Move all the terms to the left side and set them equal to zero. Then set each factor equal to zero.
