Answer:
<h2>x = -4 and y = -1 → (-4, -1)</h2>
Step-by-step explanation:
Answer:
Solution set = (-5, -2)
Step-by-step explanation:
Given equations;
-7x + 8y = 19 ------------- eq1
7x – 9y=-17 --------------- eq2
Adding both equations:
-y = 2
OR
y = 2
Put value of y in eq2:
7x - 9(-2) = -17
7x + 18 = -17
7x = -17 -18
7x = -35
x = -5
Solution set = (-5, -2)
i hope it will help you!
Answer:
Step-by-step explanation:
A.
<u>First spin</u> <u> Second Spin</u>
____ Red |---------Red
| |---------Green
| |--------Yellow
|
____Blue |---------Red
|----------Green
|---------Yellow
B. Probability of getting a red on the first spin = 1 /2.
A meter stick is about 3 yards longer
this can be solved by establishing system of
eqution:
let x be the amount of 25 % acid soln needs to
be drained
y is the amount of 70% acid solution
first equation:
<span>(100 – x) + y
= 100</span>
Second equation
0.25(100 – x ) + 0.7y = 0.60(100)
Solving the system of equation
<span>X = 77.78 g of 25 % acid solution is needed to
be drained</span>
