Solve the following system using elimination:
{7 x + 2 y = -19 | (equation 1)
{2 y - x = 21 | (equation 2)
Add 1/7 × (equation 1) to equation 2:
{7 x + 2 y = -19 | (equation 1)
{0 x+(16 y)/7 = 128/7 | (equation 2)
Multiply equation 2 by 7/16:
{7 x + 2 y = -19 | (equation 1)
{0 x+y = 8 | (equation 2)
Subtract 2 × (equation 2) from equation 1:
{7 x+0 y = -35 | (equation 1)
{0 x+y = 8 | (equation 2)
Divide equation 1 by 7:
{x+0 y = -5 | (equation 1)
{0 x+y = 8 | (equation 2)
Collect results:
Answer: {x = -5, y = 8
Answer:
15/4 please let me know if this helped you :)
Step-by-step explanation:
0.75*5=3.75 or 15/4
all of your answers are less than 3/4ths of a mile...she is increasing the amount she runs not decreasing.
you answer is 10 hope this help[s :D
In this question, we're trying to find how much a sale clerk earns from a sale.
We know that the DVD player costs $250
We also know that the TV costs $600
The sales clerk has a 19% commission rate, this is the money that they make from the sale.
To find the money the sales clerk got from the sale, we have to add the total spending and multiply it by 0.19
250 + 600 = 850
850 · 0.19 = 161.5
This means that the sales clerk made $161.50 in commission from the sale.
Answer:
$161.50
I would say the first one 3.30 and for 2.the 4th chart
