Answer:
4 minutes
Step-by-step explanation:
make equation
0.25+(0.15x)= 0.85
solve for x
0.15x= 0.60
x=4
20/18+5/18=25/18
25/18 can be written as mixed fraction 1 7/18
The answer to the problem is 2300
I don't know what you mean by property. Do you mean like, commutative, distributive, etc?
but, if this is what you mean:
to solve this:
The operation here is subtraction. Do the inverse. So, add 6 to both sides of the equation
10 + 6 = 16
1/2x - 6 + 6 = 1/2x. (the 6 cancels out)
1/2x = 16
Now, I'm going to assume 1/2 is supposed to be a fraction (not division). So, 1/2 is right next to x which represents multiplication, so do the opposite which is division.
16 divided by 1/2 = 32
1/2x divided by 1/2 = x
x = 32.
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Answer:
b=-1
Step-by-step explanation:
you need to make sure that you can add 7 and have the answer be 4cm because, and if you subtract 4 from 7 you get 3 so the should add onto a -3 and the only way to turn the 3 into -3 is to multiply the 3 by -1
