2:10 or 2/10 or 2 to 10. They all equal the same thing just written differently. I got this because if you add the green, the blue, and the red together that would be 10 and the question is asking about the red and there is two red marbles so the red:total would be the ratio for this problem.
Answer:
2.6 x 10^21
Step-by-step explanation:
Move the decimal so there is one non-zero digit to the left of the decimal point. The number of decimal places you move will be the exponent on the 10 If the decimal is being moved to the right, the exponent will be negative. If the decimal is being moved to the left, the exponent will be positive.
Answer:
The solution is (0, 4)
Step-by-step explanation:
Please pay attention to the first two equations and drop the last two:
12x−5y=−20 y=x+4 x=x=x, equals y=y=y should ideally be:
12x−5y=−20
y=x+4
Let's find x. Substitute x + 4 for y in the first equation, obtaining:
12x - 5(x + 4) = -20
Carrying out the indicated multiplication, we get:
12x - 5x - 20 = -20, or 7x = 0
If x = 0 then y must be 0 + 4, or 4.
The solution is (0, 4)
Answer:
The answer would be 4.5 mi
Step-by-step explanation:
I'm not really sure if it's right but that's what I got
X varies directly as y
x = ky
3 = 2k
k =
![\frac{3}{2}](https://tex.z-dn.net/?f=%20%5Cfrac%7B3%7D%7B2%7D%20)
when x =9
9 =
![\frac{3}{2}](https://tex.z-dn.net/?f=%20%5Cfrac%7B3%7D%7B2%7D%20)
y
![\frac{18}{3}](https://tex.z-dn.net/?f=%20%5Cfrac%7B18%7D%7B3%7D%20)
= y
∴y = 6
please mark as brainliest