Answer:
80 children attend this day care,
Step-by-step explanation:
Let x represent the number of children that attend this day care center. The day care worker found 28 children absent one day during an epidemic of chicken pox.
If this was 35% of the total number of children attending the day care center, it means that the number of children absent one day during the epidemic of chicken pox can be expressed as
35/100 × x = 0..35×x = 0.35x
Therefore,
0.35x = 28
x = 28/0.35= 80
I assume you are asking to solve:
-2x^2 + 3x - 9 = 0
So first, this equation does not have real roots.
It only has 2 complex roots.
The roots are:
3/4 * (1-i√7) and 3/4 * (1+i√7)
Answer:
-3(r+5)
Step-by-step explanation:
............
.
Answer:
3/8 divided by 5/6
Step-by-step explanation:
To divide a fraction by a fraction, you multiply the first fraction by the reciprocal (aka the fraction flipped upside down, in this case the reciprocal of 5/6 is 6/5). Since 6/5 is greater than 5/6, 3/8 divided by 5/6 is greater than 3/8 times 5/6.
Answer:
a.Angle. 3
Step-by-step explanation:
Angle 3 is complementary to angle 4.
Because 70+20=90°
