Answer:
2 cows and 5 chickens.
Step-by-step explanation:
NOTE: This will be solved using simultaneous equations.
Let x = cows and y = chickens
1. form two equations
4x + 2y = 18 ... (1)
x + y = 7 .... (2)
2. make y (or x) the subject of one equation
x + y = 7
y = 7 - x ... (3)
3. Substitute (3) into (1)
4x + 2( 7 - x) = 18
4. solve for x
4x + 14 - 2x = 18
2x = 4
x = 2
5. Now substitute x value into equation (2)
x + y = 7
2 + y = 7
y = 5
∴ cows (x) = 2
chickens (y) = 5
Hello!
You can write down what the possible numbers their are
The numbers greater than 2 are 3, 4, 5, and 6
The numbers that are odd are 1, 3, and 5
List all the numbers out in a row
3, 4, 5, 6, 1, 3, 5,
Eliminate one of the numbers that repeat
3, 4, 5, 6, 1
You put the amount of answers of the total amount of outcomes
The answer is 5/6
Hope this helps!
Answer:
1. x= -11/3
2. x= 25
hope it helps this is solved by functions
Answer:
MRS. White graded 51 papers.
Step-by-step explanation:
85/100= 0.85
0.85 x 60 = 51
Answer:
81
Step-by-step explanation:
27 total of pupils.
girls 1×27=27
boys 2×27=54
total 54+27=81
