Answer:
42
Step-by-step explanation:
Since Gabrielle is 7 years older than Mikhail, we subtract 7 from 91. Then we divide it by 2. So 84/2=42. Since Gabrielle is 7 years older we add 7 to 42. She is 49 and Mikhail is 42 years old. To double check our answer we should add both of the ages we got to make sure they add up to 91, so 42+49 is 91.
Remember the following things:
1) multiplying a negative number with a positive will result in a negative answer
2) multiplying a negative number with a negative will result in a positive answer
3) multiplying the same variables will result in a greater 'power'.
So:
2d²(d) = 2d³
11d(d) = 11d²
-4(d) = -4d
-9(2d²) = -18d²
-9(11d) = -99d
-9(-4) = 36
hope this helps
(9, 4) would be your answer
30 euros?
i don't know if this is a typo or something.
Normally if you have the things legnth
and height, you and another thing, then normally the other thing
would be area and you would have 2 given and 1 to solve.
Probably your question is
legnth=?
Height=1.0
decimal part is confusing, I am
guessing that you mean area
area=0.8
so use formula
height times legnth=0.8
1.0 times blank=0.8
divide both sides by 1.0
blank=0.8/1=0.8
blank=0.8
legnth=0.8