Seudónimo Seudónimo

25-09-2020
Mathematics

contestada

Jennifer is 3 years older than twice Zack’s age. The sum of their ages is 21. What are their ages?

Respuesta :

savannahlynn07 savannahlynn07

28-09-2020

Answer:

Jennifer is 15 and Zack is 6

Step-by-step explanation:

z+ (2z+3)=21

z+2z+3-3=21-3

z+2z=18

3z=18

3z/3=18/3

z=6

so plug 6 in for all the variables and their ages are

Zack-6

Jennifer-15

Answer Link

Otras preguntas

3 Pizzas shared equally with 6 friends

Aside from plays, what other form of literature did Henrik Ibsen write?

The large number of rail lines in the Prairie Provinces reflects the _____. a. number of large cities b. large population c. importance of waterways d. importan

what 5and 3/6-2and 4/6

Fossils _____. A. disprove evolution B. form whenever an organism dies C. can only form when organisms are buried alive D. support evolution because they s

I really need help please help me figure this out

2/3 k is greater than or equal to -12

The type of seismic waves that arrive at the surface first and move by compressing and expanding the ground like an accordion are called a. S waves. b. P waves.

Which cultural groups control the most fertile lands? A. government leaders B. subsistence farmers C. traders and herders D. craft workers

Which of the following is an example of an even population distribution? a. corn planted in a field b. flocks of birds c. people in a park d. deer in a forest