Which algebraic expression represents "the bagels were divided equally into fifteen bags"? 15 + b 157b StartFraction 15 Over b EndFraction StartFraction b Over 15 EndFraction

(d)-  

Step-by-step explanation:

Suppose 'b' is the number of bagels

It is to be divided into 15 bags

So, we use the divide operator i.e.

x = ±sqrt(10)

step-by-step explanation:

5 - 2x² = -15

subtract 5 from each side

5-5 - 2x² = -15-5

-2x^2   = -20

divide by -2 on each side

-2x^2   /-2= -20/-2

x^2 =10

take the square root on each side

sqrt(x^2 )=±sqrt(10)

x = ±sqrt(10)

check:

5 - 2x² = -15

+sqrt(10)

5 - 2(sqrt(10))² = -15

5 -2(10) = -15

5 -20 = -15

-15 = -15

-sqrt(10)

5 - 2(-sqrt(10))² = -15

5 -2(10) = -15

5 -20 = -15

-15 = -15

24+x=y

step-by-step explanation: