Simplify 5(2.4w + 1) + (7w - 6)
2 answers:
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Answer:
D
Step-by-step explanation:
We equate both the y's and solve for x algebraically:
Now taking the value x= 14 and putting it in the 1st equation would give us y:
Hence the solution is (14,8), answer is D
Answer:
8
Step-by-step explanation:
Let's say that the amount of lollipops Lydia buys is represented by x and the number of candy bars is represented by y. For each x, Lydia spends 0.50, and for each y, Lydia spends 1.50. This means that the total amount she spends can be represented by the equation 0.50*x+1.50*y. Our equation is then 0.50*x+1.50*y=15
Using our equation, we can plug 6 in for x, resulting in 0.50*6+1.50*y=15, so
In this set of equations, we plugged 6 in, multiplied it out, then subtracted 3 from both sides, and finally divided both sides by 1.50 to get 8 as our answer.
In order to find CPU (Cost per unit) we must take the cost, and divide it by the number of units.
So,
Since we are talking about money, it is implied to round to the nearest cent, so the final answer is
$3.44