Ling has some chickens and rabbits. There are 22 feet and 8 heads in all. How many chickens and rabbits does Ling have? Remember: She can only have 8 animals and that chickens have 2 feet and rabbits have 4.

Chickens= 5

Rabbits= 3

Step-by-step explanation:

Let the number of chickens be y

Let the number of rabbits be z.

There are 8 animals and chicken has 2 feet while rabbits have 4 feet. This can be expressed mathematically as:

y+z= 8. i

2y+4z= 22 iI

Multiply equation I by 2

Multiply equation ii by 1

2y+2z= 16 iii

2y+4z= 22 iv

Subtract equation iv from iii

-2z = -6

Divide both side by 2

Z= 6/2 = 3

There are 3 rabbits

From equation I,

y+z= 8

Since z= 3

y= 8-3 =5

There are 5 chickens.

There are 5 chickens and 3 rabbits

the equation cos(35) =a/25 can be used to find the length of bc what is the length of bc? round to the nearest tenth

step-by-step explanation:

the inequality is:

250c+180g≥950

step-by-step explanation:

let c denotes the number of days in a week   miyoko worked as a cryptographer.

and g denotes the number of days in a week she works as a geologist.

now we are given that she earns $250 for every day she works as a cryptographer,and earns $180 for every day she works as a geologist.

now miyoko's goal is to earn more than $950 this week.

hence, the inequality could be represented as:

250c+180g≥950