percent of water is: 32/80*100= 40%
Answer:
(-4,-3)
Step-by-step explanation:
The x value is -4 and the y value is -3
291-186=105 (total earned through wages)
105/5=21
Therefore she worked 21 hours
Answer:
x= -1
Step-by-step explanation:
that's just how it be sometimes?
Answer: You bought 7 books and you also bought 4 magazines
Explanation:
x = # of books purchased
y = # of magazines purchased
System of equations:
8x + 5y = 76
x + y = 11
Let’s use elimination in this case, but substitution can also work.
8x + 5y = 76
Multiply the (x + y = 11) by -8
We get:
8x + 5y = 76
-8x - 8y = -88
The xs cancel.
Add like terms.
-3y = -12
Divide by -3 on both sides
y = 4
Now plug in 4 into the (x + y = 11) equation to get x.
x + (4) = 11
Subtract 4 on both sides
x = 7