I need help on a math question! Please help..
the equation is x/5 + x/a = c [ You have to solve for x ]
The correct answer is suppose to be 5ac/a + 5
but i'm not sure how you get it >_<

x = 5ac/(a + 5).

Step-by-step explanation:

x/5 + x/a = c

Multiply each term by 5a ( to remove the fractions):

(x*5a) / 5 + (x*5a).a = c*5a

ax + 5x = 5ac          Now factor the left side:

x(a + 5) = 5ac          Divide both sides by (a + 5):

x = 5ac/(a + 5).

1: -2 3/4, -2 1/2, -14, 0, 3, 8 1/3

2: -4, -3, -2 1/2, -2 1/4, 3 1/4,

step-by-step explanation:

0.16 or 16%

step-by-step explanation:

lets take a coin for example.

if you toss it twice, it has a 1/4 chance of landing on heads both times because 1/2 * 1/2 is 1/4.

with the cards, the chance of picking dog is 0.4. having two people pick one is like picking a card twice in a row. so 0.4 * 0.4 is 0.16, or 16%