alanishere94 alanishere94

22-08-2019
Mathematics

contestada

Maggie's brother is 9 years younger than three times her age. The sum of their ages is 43. How old is Maggie?

Respuesta :

calculista calculista

02-09-2019

Answer:

Maggie's age is 13 years

Step-by-step explanation:

Let

x ------> Maggie's brother age

y ------> Maggie's age

we know that

x+y=43 ------ > equation A

x=3y-9 ------> equation B

substitute equation B in equation A and solve for y

(3y-9)+y=43

4y=43+9

4y=52

y=13

therefore

Maggie's age is 13 years

Answer Link

Otras preguntas

Eli takes the 17 apples home, and he bakes as many apple pies as he can. He uses 7 apples in each pie. How many apple pies does Eli bake? How many apples are le

Two distinct systems have the same amount of stored internal energy. 500 J are added by heat to the first system and 300 J are added by heat to the second syste

A veggie wrap at David's Deli is composed of 33 different vegetables and 22 different condiments wrapped up in a tortilla. If there are 66 vegetables, 66 condim

Ivo Company has a $10 million face value bond issue outstanding. These bonds include a call option that permits Ivo to redeem the bonds at any time for 101% of

1. Rita said to me, “Where did you buy this pen?”

¿Entendiste IOPs? Escribe las siguientes frases en español. Did you understand IOPs? Write the following phrases in Spanish. 1. You gave José that ring (over t

Epsilon Co. can produce a unit of product for the following costs: Direct material $ 8 Direct labor 24 Overhead 40 Total costs per unit $ 72 An outside supplier

Anna read 6 pages of a book then stopped. She later decided to continue the book and read 7 more pages every day. Let d represent the number of days since Anna

MC Qu. 74 Differential Chemical produced... Differential Chemical produced 12,000 gallons of Preon and 16,000 gallons of Preon. Joint costs incurred in producin

It's raining cats and dogs