Answer:
this is only a statement with no question so I'm just assuming the question here:
It would be cheaper to buy the $$35/month plan if he uses under 575 min/month and cheaper to buy the $55 plan if using over 575 min/month
Step-by-step explanation:
$35 + x$0.16 = $55
-35. -35
_________________
x$0.16 = $20
÷ 0.16. ÷0.16
______________
x = 125 min
450 + 125 = 575 min
<span>Marilyn has 10 caramels, 12 mints, and 14 bars of dark chocolate in a bag
Total = 10 + 12 + 14 = 36
1st pick a mint: 12/36 = 1/3
2nd pick a mint: 11/35
3rd pick dark chocolate: 14/34 = 7/17
</span><span>The exact probability that Marilyn picks a mint, then another mint, and finally a bar of dark chocolate is:
1/3 x 11/35 x 7/17 = 77 / 1785 = 11/255
Answer
11/255</span>
Answer:
1.Therefore the solution of given system is (3,4)
2.Therefore the solution of given system is (-1,2)
Step-by-step explanation:
1.
Given the system
2x +3y =18...........(1)
-2x+5y =14...........(2)
Adding the equation (1) and (2)
2x+3y-2x+5y= 18+14
⇔8y = 32
⇔
⇔y = 4
Putting the value of y in equation (1)
2x + 3. 4=18
⇔2x+12 =18
⇔2x = 18-12
⇔2x = 6
⇔x =3
Therefore the solution of given system is (3,4)
2.
Given the system
3x +4y = 5..........(a)
2x +7y =12...........(b)
Equation (a) ×2 - equation (b)×3
2(3x+4y)- 3(2x+7y) = 2.5 -12.3
⇔6x + 8y -6x -21y = 10-36
⇔ -13y = -26
⇔
⇔y = 2
Putting the value of y in equation (a)
3x +4.2 =5
⇔3x = 5 -8
⇔3x = -3
⇔x = -1
Therefore the solution of given system is (-1,2)
Answer:
b
Step-by-step explanation: