Answer:
x > 4
Step-by-step explanation:
5x + 17 > 37
Subtract 17 from each side
5x + 17-17 > 37-17
5x > 20
Divide each side by 5
5x/5 > 20/5
x > 4
Because you can't solve for two variables at once, you can guess and trial/error.
You can also give x or y any value, and then solve for the opposite variable.
x = 0
y = -36
for example. There are more solutions.
y + 8 = -4(x+7)
-36 + 8 = -4(0+7)
-28 = 0 - 28
-28 = -28
Answer:
4 pencil & 2 ruler = $8
2 pencil & 4 ruler = $10
let the no. of Pencil be X and no. of ruler be Y
4x + 2y = 8
2x + 4y= 10
solving the equation by elimination method,
multiplying eq 2 with 2
4x + 2y = 8
4x + 8y = 20
subtracting,
- 6 y = -12
y = 2
2x + 4(2)= 10
2x + 8 = 10
2x = 10 - 8
2x = 2
x = 1
Cost of 3 ruler + 3 pencil
= 3(1) + 3(2)
= 3 + 6
= 9
<h2 /><h2>= $9</h2>
A and E i don’t know i’m guessing
Answer:
6.5
Step-by-step explanation:
To round 6.48 to nearest tenth means to round the numbers so you only have one digit in the fractional part.
