Answer:
30 + 5<em>d</em> ≥ 120
Step-by-step explanation:
One ticket costs $120 and she already has $30 saved up so the money she makes by dogwalking added to the $30 has to be equal to or greater than 120
- 30 for the <u>amount she saved up</u>
- 5<em>d</em> where <u><em>d</em></u><u> stands for the number of days she walks dogs </u>
- Make this information into one part of the inequality: 30+5<em>d</em>
- Then this has to be greater than or equal to 120 so:
<u>30+5</u><em><u>d</u></em><u>≥120</u>
Hope this helps!
Answer:
a=2 , b= (-1)
Step-by-step explanation:
8a-4b=20/×(-2)
5a-8b=62
-16a+8b= -40
5a-8b=62
now -8+8=0 right? so the only parameter that we have is a.
-16a+5a= -40+62
11a = 22/(÷11)
a=2
in order to find b, we will replace a with its value in one of the original equations (it doesn't matter which one you will choose).For instance, I chose the first one.
8×2-4b=20
-4b=20-16
-4b=4/÷(-4)
b= -1
Answer:
The roots of the equation for the given quadratic equation is 
.
Step-by-step explanation:
Given quadratic equation as :
2 x² + 8 x + 5 = 0
The roots of the quadratic equation ax² + bx + c = 0 as can be find as :
x = 
x = 
or, x = 
Or, x = 
Or, x = 
∴ x =
Hence The roots of the equation for the given quadratic equation is . Answer
Alright, so first we'll have to get y on the other side
So
2x+y=-9
-y -y
+9 +9
2x+9=-y
Then divide is all by -1 so y is positive
-2x-9=y
