We must first open the parenthesis. We get 15*7+15y, or 105+15y. We can now add 12 to 105 which would be 117. Now we have -4-5y+117+15y. With this we can move the -4 to 117 which is 113 and the -5y to 15y which is 10y. So we got 113+10y as our answer.
Hope this helps. <3
-3(3x+y=19)
4x+3y=26
-9x-3y=-57
4x+3y=26
-5x=-31
x=6.2 substitute x into the equation:
3(6.2)+y=19
18.6+y=19
y=.4
(6.2,.40)
Answer:
11/50
Step-by-step explanation:
Answer:
The answers are, "John saves $35 dollars the first week" and "John is saving at a faster rate than Barb"
This problem can be solved with a proportion. We know that 8% of the population is the 368,000 and we want to find the whole population.
To make the proportion, let P be the population. Left side of the equals is the group we know, right side is the whole state, the top is the portions, the bottom are the populations.
We can't have percents in the proportions, so let's convert them to fractions or decimals. Percent means "per 100". So 8% = 8 per 100 = 8 / 100 = 0.08 Similarly, 100% = 100 per 100 = 100/100 = 1
Now we cross multiply to solve.
(0.08)(P) = (1)(368000)
0.08P = 368000
P = 368000/0.08 <-- divide both sides by 0.08
P = 4600000
Thus, Indiana has a population (that's aged 5 years or older) of 4,600,000.