Answer:
(3, 2)
Step-by-step explanation:
Given the 2 equations
y = 2x - 4 → (1)
3x + y = 11 → (2)
Substitute y = 2x - 4 into (2)
3x + 2x - 4 = 11
5x - 4 = 11 ( add 4 to both sides )
5x = 15 ( divide both sides by 5 )
x = 3
Substitute x = 3 into (1) for corresponding value of y
y = (2 × 3) - 4 = 6 - 4 = 2
Solution is (3, 2)
Answer:
Copper is being reduced
Step-by-step explanation:
Since the charge of the copper ion went down (2+ --> 0), we can say that Copper is being reduced. An atom is reduced when electrons are added.
Answer:
His second smoothie recipe
Step-by-step explanation:
Given that Victor has two receipts for smoothies:
The first recipe requires 2 strawberries to 7 cups of other ingredients (2:7),
The second recipe requires 3 strawberries to 9 cups of other ingredients, (3:9).
Let's crate a ratio tables in order to determine which recipe has more strawberry compared to other ingredients.
Ratio tables for first Recipe:
Straw berry | Other ingredients
2 | 7
4 | 2(7) = 14
6 | 3(7) = 21
Ratio Table for Second Recipe:
Straw berry | Other ingredients
3 | 9
6 | 2(9) = 18
9 | 3(9) = 27
Comparing his first recipe and his second recipe, when using 6 strawberries, his second recipe requires more cups of strawberry compared to other ingredients (6:18) than that required in his first recipe (6:21).
Answer:
$15, brainliest please
Step-by-step explanation:
The triangle has a 45-deg angle.
The base angles are congruent and measure 67.5 deg.
The congruent sides measure 1 ft.
Use law of sines to find the length of the base.
Draw a height from the vertex of the 45-deg angle to the base.
Half of the base is 0.765 ft/2 = 0.383 ft
We can find the height of the triangle using the small triangles.
0.383^2 + h^2 = 1^2
h = 0.9239 ft
A = bh/2 = 0.765 * 0.9239/2 ft^2
A = 0.354 ft^2