Answer:
a) 30%
b) 280
Step-by-step explanation:
a) 3/10 = 30/100 = 30%
b) 30% = 0.3
0.3 × 400 = 120
400 - 120 = 280
Answer:
Missing length = 20
Step-by-step explanation:
Ratio is 16/20=4/5
25×4/5=20
So we are given a system:
Substitute x = 2 we get the system:
Multiply the first equation by -5 and the second by 2 we get the system:
Adding the two equations we get :
We find the value of y by using any of the other equations like this:
Final solution:
The answer is: 15
Because if for every 5 c cookies there is 3 oatmeal cookies, we can add 5+3=8. 40 divided by 8= 5. 5 times 3 equals 15. That’s why the answer is 15
55 if you mean one half
5500 if you mean 50 times 110
60 if you mean 50 from 110