Answer:
x=-3
y=3
Step-by-step explanation:
-27=-9x-18y equation 1
-5y-10x-15=0 equation 2
using equation 2 we have:
-10x -15 =5y
y= -2x -3 equation 3
using equation 3 in equation 1 we have:
-27=-9x-18(-2x -3)
-27= -9x +36x +54
-27-54 =27x
-81 = 27x
so we have:
x= -81/27
x=-3
y= -2(-3) -3
y= 6-3
y = 3
9514 1404 393
Answer:
y = x + 4
Step-by-step explanation:
To find the constant in the equation, look in the table for the value of y when x=0. That value is 4, so ...
y = x + 4
<span>3 x (80 - 2) = 3 x 80 - 3 x 2 = 240 - 6 = 234 is your answer
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Using proportions, it is found that the life span of the person would be 14 years, 212 days and 22 hours shorter.
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- 2 packs a day for 35 years is 40 cigarettes a day for 12775 days, as
. - Thus, a total of 511000 cigarettes, as
. - Assuming each cigarette costs 15 minutes of life, the person loses 7665000 minutes of life, as

- One year has 525600 minutes, thus the person loses 14 years of life, as

- Looking at the decimal part, the person loses 212 days of life, as

- Again looking at the decimal part, 22 hours, as

- Thus, the person loses 14 years, 212 days and 22 hours of life.
A similar problem is given at brainly.com/question/23352001
Thats a reasonable price for a sweater.