Answer:
15=0 not a real number
Step-by-step explanation:
8+9p=9p-7
+7 +7
15+9p=9p
-9p -9p
15=0
Call x the number of cards of Nigel, y the number of cards of Angusand z the number of cards of Albert
you want to find x + y + z.
You know
1) x/y = 3/4 => y = (4/3)x
2) x/z = 3/5 => z = (5/3)x
3) y/z = 4/5 => y = (4/5)z
4) x = z - 14
From 1 and 3: (4/3)x = (4/5)z => x = (3/5)z
5) Replacing x = (3/5)z in x = x - 14:
(3/5)z = z - 14
=> z - (3/5)z = 14
=> (2/5)z = 14
=> z = 14*5 / 2 = 35
=> x = (3/5)*35 = 21
=> y = (4/5)*35 = 28
=> x + y + z = 21 + 28 + 35 = 84
Answer: 84
Answer: 9.57
Step-by-step explanation:
I added 4.35 by 4.35 wich would be 10 cans and then I divided 4.35 by 5
The measure of angle DCE is C: 34.
Answer:
<h3>
Any of them.</h3><h2>
a ∈ R</h2>
Step-by-step explanation:
-5x - 4y = 2a 4x - 5y = 2
-4y = 5x + 2a -5y = -4x + 2
y = (5x + 2a):(-4) y = (-4x + 2):(-5)
y = -⁵/₄x - ¹/₂a y = ⁴/₅x - ²/₅
m₁ = -⁵/₄, b₁ = -¹/₂a m₂=⁴/₅, b₂= -²/₅
-⁵/₄ ≠ ⁴/₅
Different slopes means that two lines have one point of intercept (no mater what the b's are). That means that the system of linear equations has exactly one solution for any value of a.