JohnCameron435 JohnCameron435

18-09-2015
Mathematics

contestada

Mary is x years old. How old will she be in 12 years? How old was she 2 years ago?

Respuesta :

itsHannah itsHannah

18-09-2015

As Mary isn't given an age, you must use algebra:

"How old will she be in 12 years?"
So this is 12 more years than her age. If her age is x:
x + 12

"How old was she two years ago?"
This is 2 years less than her age. If her age is x:
x - 2

Answer Link

Otras preguntas

You Can see smell and taste microorganisms?

a square table clothe is 5feet long on each side. Kevin wantsto tile the table clothe. How much tile does he need to cover the tableclothe?

What type of machine is a CD player? A. simple machine B. compound machine

An 100W light bulb is on 6 hours work out the energy (kWh) used and the cost of it (1kWh = £0.1359) with working out please

This President’s scandals threw a shadow over all the good he did while in office: Ford Clinton Carter Reagan

what is data? what can when can we use data?

The elderly population continues to grow. Please select the best answer from the choices provided T F

Please help me on my math homework?

often provides support and illuminates the protagonist? a) dynamic character b) characterization c) explicit judgment d) implied judgment

what is this answer?????