28 , i think :) I hope it’s correct and good luck
Answer:
Answer: x= -6 and y= -7
Step-by-step explanation:
Substitute 2x+5 for y in y=3x+11:
y=3x+11
2x+5=3x+11
2x+5+−3x=3x+11+−3x(Add -3x to both sides)
−x+5=11
−x+5+−5=11+−5(Add -5 to both sides)
−x=6
−x−1=6−1(Divide both sides by -1)
x=−6
Step: Substitute −6 for x in y=2x+5:
y=2x+5
y=(2)(−6)+5
y=−7(Simplify both sides of the equation)
-Source: MathPapa
Answer:
15
Step-by-step explanation:
Please correct me if I'm wrong
Y= 42. 3(3+7)+12
3(10)+12
30+12
42
y=42
0.24%=.0024
Expected value=100000 x 0.0024=$240
