To answer this, you will determine what fraction of the original rocks are silver by using the information about the other two colors.
If 2/3 of them area purple, than 1/3 are not.
If 3/4 of the remaining 1/3 is blue, than 3/4 x 1/3 = 3/12 of then are blue.
2/3 are purple, 3/12 of them are blue, the remaining is silver,
1 - 2/3 - 3/12
1 - 8/12 - 3/12 = 1/12
1/12 of the rocks are silver. If 3 are silver, write an equation that needs solved.
1/12r = 3
r = 36 rocks
There were 36 space rocks in total.
Answer:
X+296=285
X=-11
Original= 11 feet below sea level
Since they have the same denominator (4) which is the number on the bottom of the fraction, you can just add the numerators (3 and 4), which are on the top of the fraction, together:
3/4 + 4/4 = 7/4
Answer:
just show that you moved the decimal 2 times
Step-by-step explanation:
Answer:
x = 5 ± 
Step-by-step explanation:
Given
x² - 10x + 25 = 17 ← left side is a perfect square, thus
(x - 5)² = 17 ( take the square root of both sides )
x - 5 = ± ( add 5 to both sides )
x = 5 ±
Thus
x = 5 -
x = 5 +
