Answer:
(x-2)(x-2)
Step-by-step explanation:
Find two things you can multiply to equal to 4 and add to equal -4
-2*-2=4 and -2+-2=-4
The equation for what the 2nd number of three consecutive numbers that equal to 414 is : x+(x+1)+(x+2)=414
Multiply and Simplify:
x+x+1+x+2=414
3x+3=414
Subtract 3 from both sides:
3x+3-3=414-3
3x=411
Divide three by both sides to get answer:
3x/3=411/3
x=137.
If you want to check if its correct add the three numbers that come next:
137+138+139=414.
Answer:
5
Step-by-step explanation:
As seen in the figure, we know that because ΔABC is isosceles, ∠B = ∠C, so we know that 75 = 3x, x = 15. Next, following the rule that all angles in a triangle sum to 180°, we can set up this equation and solve it:
4y + 10 + 75 + 75 = 180
4y = 180 - 160
y = 20
∴ y = 5
After the donation,
3m + m = 132
manual = 33
digital = 99
Before the donation, he had 82 more digital and 26 more manual cameras.
82 + 99 = 181 digital
26 + 33 = 59 manual
For a double check, before donation,
digital + manual = 240
181 + 59 = 240
So, to begin with, the number of digital cameras = 181.