Ask question

Ask question

All categories

3 years ago

9

On a field trip there are 18 chaperones supervising 81 children. If the children are broken into groups how many adults are need

ed for a group of 27 kids

1 answer:

Butoxors [25]3 years ago

3 0

Answer:

6

Step-by-step explanation:

you first divide 81 by 18 and get 4.5, that is the number of children per adult.

next you'll divide 27 by 4.5 and 6.

that's the answer.

You might be interested in

Algebra Question: Answer quickly.

Ilia_Sergeevich [38]

Answer:

x^2 -6x +6

Step-by-step explanation:

f (x) = x^2

g (x) = x − 3

f(g(x)) = Substitute g(x) in for x in the function f(x)

= (x-3)^2 -3

=x^2 -3x-3x+9 -3

=x^2 -6x +6

4 0

3 years ago

Sum of positive roots of the equation (x2 - 12x + 35) (x2 + 10x + 24) = 504 is

Digiron [165]

Answer:

(3)11

Step-by-step explanation:

We are given that

$(x^2-12x+35)(x^2+10x+24)=504$

We have to find the sum of positive roots of the equation.

$x^2(x^2+10x+24)-12x(x^2+10x+24)+35(x^2+10x+24)=504$

$x^4+10x^3+24x^2-12x^3-120x^2-288x+35x^2+350x+840=504$

$x^4-2x^3-61x^2+62x+840-504=0$

$x^4-2x^3-61x^2+62x+336=0$

Factor of 336

2,3,4,6,8,7,

Let x=2

$2^4-2^4-61(2^2)+62(2)+336\neq0$

x=2 is not the root of equation

x=-2

$(-2)^4-2(-2)^3-61(-2)^2+62(-2)+336=0$

Hence x=-2 is the root of equation.

x+2 is a factor of equation.

x=3

$3^4-2(3^3)-61(3^2)+62(3)+336=0$

Therefore, x=3 is the root of equation.

$(x+2)(x-3)(x^2-x-56)=0$

$(x+2)(x-3)(x^2-8x+7x-56)=0$

$(x+2)(x-3)(x(x-8)+7(x-8))=0$

$(x+2)(x-3)(x-8)(x+7)=0$

$x-8=0\implies x=8$

$x+7=0\implies x=-7$

Positive roots are 3 and 8

Sum of positive roots=3+8=11

Option (3) is true.

4 0

3 years ago

Solve the math problems

Rasek [7]

Answer:

13, 7, 60, 71, 42, 29, 21, 66, 69, 22.

Step-by-step explanation:

Hope it's helpful

8 0

2 years ago

Kaylis [27]

Answer:

umm i think it is 5 cm but im not sure

5 0

3 years ago

Jerry was making two different types of cookies. One recipe needed 3/4 cups of sugar and the other needed 2/3 cups of sugar. How

inn [45]

Both recipes would add up to 1 5/12 this is using the black widow way

5 0

3 years ago

Read 2 more answers