3 years ago

What is 2/5 +3/10? PLEASE ANSWER!!!!!!!

2 answers:

6 0

Bring the two fractions to the same denominator, 10.

2/5 = 4/10
3/10 = 3/10

Add the numerators keeping the denominator the same.

4/10 + 3/10 = 7/10

Wewaii [24]3 years ago

6 0

$\frac{2}{5} + \frac{3}{10} = \frac{2*2}{5*2} + \frac{3}{10} =$

$\frac{4 + 3}{10} = \frac{7}{10}$

You might be interested in

The price of a shirt was $38. It was reduced by 20% and then again by 10%.what is the final price of the shirt

tiny-mole [99]

First you would take 20% off the orignal price giving you 30.4$ after that you take 10% of 30.4 to get 27.36$.

5 0

3 years ago

Read 2 more answers

Find the zeroes of the following equation:

weqwewe [10]

Answer: $\bold{x=\dfrac{1\pm \sqrt5}{2}}$

both zeros are irrational numbers

Step-by-step explanation:

Note: The question would have made more sense if if it was 2/x = x - 1 but I will answer it as written.

$\dfrac{1}{x}=x-1\qquad \text{Restriction: }x\neq 0\\\\\\\text{Cross multiply, simplify, and set equal to zero:}\\1=x(x-1)\\\\1=x^2-x\\\\0=x^2-x-1\\\\\\\text{This is not factorable so you will need to use Quadratic Formula:}\\\\x=\dfrac{-(-1)\pm \sqrt{(-1)^2-4(1)(-1)}}{2(1)}\\\\\\x=\dfrac{1\pm \sqrt5}{2}$