xxwinglessangel xxwinglessangel

18-01-2017
Mathematics

contestada

The mean age of 10 people in a room was 16. When Toby walked into the room, the mean age went up to 18.

What is Toby's age?

Respuesta :

catwithavacum catwithavacum

18-01-2017

he was 17. If there are 10 people and the mean is 16 and one person walks on in and it turns to 18 then that must mean he would have passed the mean of two people so I would say hes 17 .

Answer Link

Otras preguntas

solve for y: 3/4(5x-y)<3

How do you simplify (9x^8 y^3)^1/2

Jack, Jill, and Bill each carried a 48 ounce bucket full of water down the hill. By the time they reached the bottom, Jack's bucket was only 3/4 full, Jill's w

Solve the equation using the quadratic formula : x^2-10x+25=18

When an alkaline earth metal, M, reacts with oxygen the formula of the compound produced will be a. M₂O b. MO c. M₂O₃ d. MO₂ e. M₃O₄

Make labeled diagrams of badminton court and badminton racket.

Identify a food chain that consists only of a producer a primary consumer and a secondary consumer.

if sin (α+β) = 1, sin (α-β) = 1/2 then tan (α+2β) tan(2α+β) = a. 1 b.-1 c.0 d. none

Pedro is building a spice rack with 4 shelves that are each 0.55 meter long. At the hardware store, Pedro finds he can only buy the shelving in whole meter leng

predict how two differenet herbivores can share the same plant resource