Answer:
d
Step-by-step explanation:
the answer is 12% decrease in area
First, you need to analize and understand the problem, then you must choose and strategy. There is a wide variety of strategies to solve a mathematical problem, in this case, you can use the following, which is based on the information given above:
1. You have that t<span>he sum of three consecutive even integers is </span>
![-78](https://tex.z-dn.net/?f=-78)
<span>, therefore, you can given the variable </span>
![x ](https://tex.z-dn.net/?f=x%0A)
<span> to the first integer, the second even integer is </span>
![x+2](https://tex.z-dn.net/?f=x%2B2)
<span> and the third one is </span>
![x+4 ](https://tex.z-dn.net/?f=x%2B4%0A)
<span>.
2. Calculate x:
</span>
![x+(x+2)+(x+4)=-78](https://tex.z-dn.net/?f=x%2B%28x%2B2%29%2B%28x%2B4%29%3D-78)
<span>
</span>
![3x+6=-78](https://tex.z-dn.net/?f=3x%2B6%3D-78)
<span> </span>
![x=-28 ](https://tex.z-dn.net/?f=x%3D-28%0A)
<span>
</span>
![x+2=-28+2=-26 ](https://tex.z-dn.net/?f=x%2B2%3D-28%2B2%3D-26%0A)
<span>
</span>
![x+4=-28+4=-24 ](https://tex.z-dn.net/?f=x%2B4%3D-28%2B4%3D-24%0A)
<span>
Therefore, the answer is:</span>
Step-by-step explanation:
if 70% of the orice is 420 then
70x = 100 × 420
70x = 42000
x = 42000/70
x = 600
Answer:
hello
Step-by-step explanation:
it's me
Answer:
(3 x + 5) (x + 5)
Step-by-step explanation:
Factor the following:
3 x^2 + 20 x + 25
Hint: | Factor 3 x^2 + 20 x + 25 by finding factors of 3×25 whose sum is 20.
Factor the quadratic 3 x^2 + 20 x + 25. The coefficient of x^2 is 3 and the constant term is 25. The product of 3 and 25 is 75. The factors of 75 which sum to 20 are 5 and 15. So 3 x^2 + 20 x + 25 = 3 x^2 + 15 x + 5 x + 25 = 5 (3 x + 5) + x (3 x + 5):
5 (3 x + 5) + x (3 x + 5)
Hint: | Factor common terms from 5 (3 x + 5) + x (3 x + 5).
Factor 3 x + 5 from 5 (3 x + 5) + x (3 x + 5):
Answer: (3 x + 5) (x + 5)