Number of biscuits shared by Mrs Perry = 25
ratio in which the biscuits were shared between Gemma and Zak = 1:4
Let us assume the common ratio = x
then
x + 4x = 15
5x = 15
x = 3
Then
The number of biscuits that Gemma got = 3
The number of biscuits that Zak got = 4x
= 4 * 3
= 12
So
Gemma: Zak = 3:12
I hope the procedure is clear enough for you to understand.
Answer: Jessica collected 135 trading cards.
Step-by-step explanation:
you just multiply 45 by 3 to get 135
Answer:
Quadratic
Step-by-step explanation:
2705/500 = 5.41
10,818/1000 = 10.818
24 341/1,500 =24.227
43,273/2000 = 21.6365
67,613/2500 = 27.0452
Rate of change changes
Answer:
y=-7; x=3
Step-by-step explanation:
You can substitute equation 2 into equation 1:
4(y+4)-2y=2
Then solve
4y+16-2y=2
2y+16=2
2y=-14
y=-7
x=-7+4
x=-3
1.) Isolate a variable.
2.) Subsitube
3.) then solve for other varible.