Answer:
4x+4y=$40 4 pins and 4 rings
Step-by-step explanation:
Making a table is the easiest for this equation.
6/4=10
12/8=20
18/12=30
24/16=40
Answer:
55.8
Step-by-step explanation:
Answer:
X =30/7
Step-by-step explanation:
The first way would be something like:
-7x + 10 = -20. The first thing we would do is to subtract 10 from both sides.
Therefore,
-7x+10-10=-20-10
Simplified, we get
-7x=-30
Remove the negative symbols
7x =30
x=30/7
Second example:
10=7x - 20
Add 20 to both sides.
10+20=7x-20+20
Simplified,
30=7x
x = 30/7
Answer:
12
Step-by-step explanation:
Since a die has six faces, 6 outcomes are possible
Since a coin has two faces, 2 outcomes are possible
Multiply the chances together and you get 12
Answer:
Answer: Option d. 4×
Step-by-step explanation:
In any sequence where ratio of the terms is given we always use the formula
A(n) = A(1)
Here A(n) is the term n
A(1) is the first term
n= number of trms
and r = ration of the terms
Here the given sequence is 40,0.4,0.004........
So A(1) = 40
Ratio 'r' of second and first term is =0.4/40=1/100
We have to find 7th term so n=7
Now we put the values in the formula
A(7) = 
=
= 
= 40×
= 4×