DONT GO TO THAT LINK ITS A VIRUS AND ITS A BOT
Answer:
20%
Step-by-step explanation:
Find the difference of both prices.
150 - 120 = 30
Calculate the ratio of the decrease in price to the original price.
30/150 = 0.2
Multiply the decimal by 100 to get your percentage.
0.2(100) = 20
Answer:
-3x + y = 8.
3y = 9x.
Step-by-step explanation:
To find the slope of the lines we convert to slope-intercept form, which is
y = mx + c (m is the slope.)
The slope of y = 3x + 5 is therefore 3.
Parallel lines have the same slope.
Finding the slope of the given lines:
-3x + y = 8
y = 3x + 8 - slope is 3 so this is parallel to y = 3x + 5.
3y = 9x
Divide through by 3:
y = 3x - so this is also parallel to 3x + 5.
y = -jx The slope is -j so it is not parallel.
16x + 2y = 12
2y = -16x + 12
y = -8x + 6 - Not parallel.
You multiply all the sides to find the value of x
We define the variables:
x = dimes
y = nickels
z = pennies
We write the system of equations:
0.1x + 0.05y + 0.01z = 1.10
y = 3z
x = z-2
Solving the system of equations we have:
x = 3
y = 15
z = 5
Answer:
The number of nickels and pennies is:
nickels = 15
pennies = 5
