Answer:
-14x^4+4x^3-6xy^3
Step-by-step explanation:
I believe it’s: 8.992254284692088
Step 1. Turn the second fraction (the one you want to divide by) upside down
(this is now a reciprocal).
Step 2. Multiply the first fraction by that reciprocal
Step 3. Simplify the fraction (if needed)
Example:
1/2 ÷ 1/6
Step 1. Turn the second fraction upside down (it becomes a reciprocal):
1/6 becomes 6/1
Step 2. Multiply the first fraction by that reciprocal:
(multiply tops ...)
1/2 × 6/1 = 1 × 6/2 × 1 = 6/2
(... multiply bottoms)
Step 3. Simplify the fraction:
6/2 = 3
This is how you divide fractions. Now try it your self!
Answer:
Step-by-step explanation:
1. 1 Simplify 2+6-4d to -4d+8.
7 ( -4d + 8)
therefor, the answer is, 7( -4d + 8)
Answer:
<em>The sister's age is 8 and the brother's age is 4</em>
Step-by-step explanation:
Let's make:
x = age of the brother
y = age of the sister
x - 2 = age of the brother two years ago
y - 2 = age of the sister two years ago
Two years ago, the age of the sister was three times greater than the age of the brother:
y - 2 = 3(x - 2)
Now, the relation doubles:
y = 2x
Substituting in the first equation:
2x - 2 = 3(x - 2)
Operating:
2x - 2 = 3x - 6
Subtracting 3x -2:
2x - 3x = 2 - 6 = -4
Solving:
x = 4
y =2x = 8
The sister's age is 8 and the brother's age is 4
