Answer:
11 L of 20% juice and 4 L of 5% juice
Step-by-step explanation:
Let
x L = amount of 20% juice
y L = amount of 5% juice
<u>20% juice:</u>
Amount = x L
Amount of juice 
L
<u>5% juice:</u>
Amount = y L
Amount of juice 
L
<u>16% juice:</u>
Amount = 15 L
Amount of juice 
L
We mixed x L of 20% juice with y L of 5% juice to get 15 L of 16% juice, so
and
From the first equation:
Substitute it into the second equation:
Answer:
x⁴ + 3x³ - 5x + 1
Step-by-step explanation:
(x - 1)(x³ + 4x² + 4x - 1)
Same as writing....
x(x³ + 4x² + 4x - 1) - 1(x³ + 4x² + 4x - 1)
x⁴ + 4x³ + 4x² - x - x³ - 4x²- 4x + 1
x⁴ + 3x³ - 5x + 1
-2
Because -2(10x+3) is (-20x-6) when you distribute
Answer:
34 5/6
Step-by-step explanation:
Convert the mixed numbers into improper fractions:
57/10 × 55/9
We can reduce these fractions by using the greatest common factor, 3
19/2 × 11/3
Multiply
19/2 × 11/3 = 209/6
Convert to mixed number
209/6 = 34 5/6
Answer:
99 m
Step-by-step explanation:
The 10 covers required ...
(10 covers) × (3 m/cover) = 30 m
So the amount remaining is ...
150 m - 30 m - 21 m = 99 m
Lee has 99 m of the fabric left.
