Answer:
27
Step-by-step explanation:
Let <em>g </em>be Gabrielle's age and <em>m </em>be Mikhail's age.
We can turn the statements the problem gives us into mathematical expressions to help us solve.
Gabrielle's age is two times Mikhail's age:
<em>g </em>= 2<em>m</em>
The sum of their ages is 81:
<em>g </em>+ <em>m </em>= 81
This gives us a system of equations that will allow us to solve for Gabrielle's age.
<em>g </em>+ <em>m </em>= 81
(2<em>m</em>)<em> </em>+ <em>m </em>= 81
3<em>m </em>= 81
<em>m</em> = 
<em>m </em>= 27
If we need to solve for Gabrielle's age, we can do the following.
<em>g </em>= 2<em>m</em>
2(27)<em> </em>= <em>g</em>
54 = <em>g</em>
g = 54
Mikhail's age is 27.
Gabrielle's age is 54.
Answer:
74
Step-by-step explanation:
9) We have: 23,15% × 35 = 8,1025 kg
There are 8,1025 kilograms of cashew nuts were there in the mixed nuts
10) We have:
- 25 × 64% = 16 mangoes
- 25× 16% = 4 avocados
Answer:
Step-by-step explanation:
10 x 3 = $30
10 x 4 = $12
$30 + $12 = $42 in think thats the answer i havent been to school in a while
Answer:
A for sure. I want to say D is the other one
Step-by-step explanation: