Answer: x=3.6; y=-2.5
Step-by-step explanation:
To solve this pair of equations, we can use elimination method.
5x+4y=8
10x-4y=46
Add both equations together to cancel out 4y.
15x=54 [divide both sides by 15]
x=3.6
Now that we know x, we can plug it back into any equation to find y.
5(3.6)+4y=8 [multiply]
18+4y=8 [subtract both sides by 18]
4y=-10 [divide both sides by 4]
y=-2.5
Now, we have x=3.6 and y=-2.5.
Answer:
The answer is B
Step-by-step explanation:
$2.50+$1.95=$27.46
-2.50
24.69
24.63/1.95
equal $12.80 or 12.8
I don't know the answer but someone who does will tell you.
Answer:
TV is 16 inches tall.
Step-by-step explanation:
Given Data:
Width of TV = w = 30 inches
Diagonal length of TV = d = 34 inches
To Find out:
height of TV = h = ?
Formula:
According to Pythagoras's theorem.
Solution:
h = 16 inches
Hence TV is 16 inches tall.
88 times 1.8 would be 158.4! Hope this helps!