2a+3b = -1 | *3
3a +5b = -2 |* -2
6a+ 9b = -3
-6a -10b = 4
------------------
/ -b =1
b= -1
2a + 3b= -1
2a + 3* -1 = -1
2a -3= -1
2a = 3-1
2a=2
a=2:2
a=1
Answer:
10 servings
Step-by-step explanation:
Divide the total juice available, 2 quarts, by the serving size, (1/5) quart per serving:
2 quarts 2 5
--------------------------- = ---- · ------ servings = 10 servings
(1/5) quart/serving 1 1
Answer: 12
Step-by-step explanation:
18−2(10+8)/6
=18−(2)(18)/6
=18−36/6
=18−6
=12
