Answer:
<h2><em><u>9.7(aproximado)</u></em></h2>
Step-by-step explanation:
<em><u>Aquí</u></em>,
= 9.69......
= <em><u>9.7(aproximado)</u></em>
Answer:
I think its -2/5 but not sure
Step-by-step explanation:
Answer:
7 3/20
Step-by-step explanation:
I took the quiz.
Divide given eq. by -2, we get, x^2-4x+0.5=0. Here a=1, b=-4 and c=0.5. As disccriminant is given by sqrt(b^2-4*a*c).so sqrt((-4)^2-4*1*0.5)=3.7417.
Real roots are x1,2=-b+-discriminant
x1=-4+3.7417=-0.2583 and x2=-4-3.7417=-7.7417
Answer:
pretzels = 10
drinks = 6
Step-by-step explanation:
Let d = number of drinks
p = number of pretzels
4d+ 4.75p = 71.50
d+p = 16
Solving this for d
d = 16-p
Substituting this into the first equation
4(16-p)+ 4.75p = 71.50
Distribute
64 - 4p +4.75p = 71.50
Combine like terms
64 +.75p = 71.50
Subtract 64 from each side
64 -64 +.75p = 71.50-64
.75p = 7.5
Divide each side by .75
.75p/.75 = 7.5/.75
p =10
Now we can find the number of drinks
d = 16-p
16-10
6
