There are 40 cats in the ecosystem.

You set 1/5 equal to x/200. Then you cross multiply the fractions to get 5x=200. You divide both terms by 5 to get x, which equals 40.

3 0

3 years ago

What is 2x(x+5)=4 using the quadratic formula

antoniya [11.8K]

X= $\frac{-5(+/=) \sqrt{33} }{2}$
Or it would be approximately: x≈ 0.37228132, -5.37228132
Hope this helped! ;P

4 0

2 years ago

Let a=x^2+4. Use a to find the solutions for the following equation:

Helga [31]

(x^2+4)^2 + 32 = 12x^2 + 48 .... a = x^2 + 4
(x^2 + 4)^2 + 32 = 12(x^2 + 4) 
a^2 + 32 = 12a 
a^2 - 12a + 32 = 0 
(a - 8)(a - 4) = 0 
a = 8 and a = 4 

for a = 8 ... 8 = x^2 + 4 ... x^2 = 4 ... x = +/- 2 
for a = 4 ... 4 = x^2 + 4 ... x^2 = 0 ... x = 0 

x = -2, 0, +2 so your answer is going to be e

4 0

3 years ago

Read 2 more answers

Translate the sentence into an inequality. Twice x is less than or equal to - 18.

Sergio039 [100]

Answer:

$2x\leq -18$