Answer:
cups plaster of paris.
Step-by-step explanation:
Given:
for one batch of sidewalk chalk = 
cup plaster of paris.
Number of bathes = 3
We need to find quantity of plaster of paris.
Solution:
For making 1 batch of sidewalk chalk = cup plaster of paris.
For making 3 batches of sidewalk chalk = 
cup plaster of paris.
Therefore, he needed cups plaster of paris.
Answer:
-4-5-6-7-8
Step-by-step explanation:
Answer:
ok
Step-by-step explanation:
yes
The better bargain is the 4 quarts
Answer:
(C) 2
Step-by-step explanation:
Given equations 2a + 7b+2c=16 and 2a + 3b +2c= 8, you want to know the value of b.
<h3>Solution</h3>
The coefficients of 'a' and 'c' are the same in the two equations, so we can eliminate those variables by subtracting one equation from the other. We can keep the resulting coefficient of 'b' positive if we subtract the second equation from the first.
(2a +7b +2c) -(2a +3b +2c) = (16) -(8)
4b = 8 . . . . . . . simplify
b = 2 . . . . . . . divide by 4
