<span> x – 3y = 9 ------------ (1)
1/5x - 2y = -1---------- (2)
(1):
x - 3y = 9
x = 9 + 3y ----------- (1a)
(2):
</span>1/5x - 2y = -1
x - 10y = -5 --------- (2a)
Sub (1a) into (2a):
9 + 3y - 10y = -5
9 - 7y = -5
-7y = -5 - 9
-7y = -14
7y = 14
y = 2 ---------- Sub into (1a)
x = 9 + 3y
x = 9 + 3(2)
x = 9 + 6
x = 15
Ans: x = 15, y = 2
He should have added the values in the numerator before dividing by 2.
<h2>Given </h2>
Justin’s doctor said that the expression;
Expression;
Where x and y are his parents’ current heights in inches.
Mom’s height = 54 inches Dad’s height = 71 inches.
Substitute all the values in the equation;
Hence, He should have added the values in the numerator before dividing by 2.
To know more about Equation click the link given below.
brainly.com/question/13455660
Answer:
3.0
Step-by-step explanation:
3/1 = 3 = 3.0
Well, since we have not actually done this experiment, we cannot use a experimental probabiltity, so we can say the correct answer is: <span>
</span><span>D. The theoretical probability is 50%.</span>