Answer:
-11.7
Step-by-step explanation:
3.3+5(-7 + 4)
we apply distributive property
3.3+5*(-7) + 5*(4)
we know:
+ * - = -
+ * + = +
so we have:
3.3 -35 + 20
3.3 - 15
-11.7
For example:
x+2y=7
6x+7y=2
__________
x=7-2y *
6*(7-2y)+7y=2 **
__________
x=7-2y
42-12y+7y=2
__________
x=7-2y
-5y=-40
__________
x=7-2y
y=8
x=-9
Answer: 48 students
Step-by-step explanation: 1+4=5
60÷5=12
12x4=48
Answer:
volume = 840 cubic cm
(3.2/100)×840= 26.88 per day
after 4 days = 26.88×4=107.5
answer is 107.5
