Answer:
Step-by-step explanation:
Given that the number of males in the classroom is three more than twice the number of females.
the total number of students is 57
Let x be the no of males then no of females = 
Also we have 3 more than twice no of females as
This equals x
No of males = 39, no of females = 18
Answer:
x = 6
Step-by-step explanation:
Hope this helps!
=)
Let's first rewrite it in vertex form.
Start by completing the square.
y = x² + 4x + 4 - 4 - 1
y = (x + 2)² - 5
(x + 2)² = y + 5
Now, 4a = 1; a =
So, the vertex form is (x + 2)² = 4(
)(y + 5)
So, we know that the vertex is at (-2, -5).
Since it's a concave up parabola, we just have to change the y-value to find the focus.
∴ F(-2, -5 +
)
F(-2,
)
Step-by-step explanation:
1)x is less than 7
2)x is greater than and equal to -4
Answer:
Original price: 51$
Discount percentage: 40%
-----------
Details
Discount = Original Price x Discount %/100
Discount = 51 × 40/100
Discount = 51 x 0.4
You save = $20.40
Final Price = Original Price - Discount
Final Price = 51 - 20.4
Final Price = $30.60
there you go, coupon A is 20.40$ Dollars less than the price of coupon B, your welcome :)) i wish u best of luck in the exam:)
also, please mark me as brainliest, it would really help me out, thanks :))
