3x + 2y = 10 .....multiply by -2
2x + 3y = 15/2...multiply by 3
------------------
-6x - 4y = -20 (result of multiplying by -2)
6x + 9y = 22.5 (result of multiplying by 3)
-----------------add
5y = 2.5
y = 2.5/5
y = 1/2
3x + 2y = 10
3x + 2(1/2) = 10
3x + 1 = 10
3x = 10 - 1
3x = 9
x = 9/3
x = 3
solution is (3,-1/2)
Answer:
8.1 g/cm
Step-by-step explanation:
Answer:
Savings= $236
Step-by-step explanation:
Giving the following information:
Money spent= $59
Proportion of savings= 25% = 0.25
<u>To calculate the total savings before shopping, we need to use the following formula:</u>
Savings= money spent / proportion of savings
Savings= 59 / 0.25
Savings= $236
According to my examination I have confirmed that I do NOT repeat do NOT know this.
