The answer would be 60, if you add 13,15, and 12 up you get 40. Those numbers would be considered 2/3 of all the marbles. Divide 40 by 2 to get how many marbles is 1/3. You would get 20 being a third if the marbles. Add that to the original 40 and you’ll get a total of 60.
Answer:
Modulator Demodulator
Step-by-step explanation:
Answer:
-36
Step-by-step explanation:
plug in the letters for the numbers, then you get, -8 - 25 - 3. -8 - 25 is -33, then you subtract that to 3. so it should look like, -33 - 3. then simplified even more is -36.
We can set up a proportion.
2/3 = x/1
Cross multiply.
2 * 1 = 2. 3 * x = 3x, so we have 3x = 2.
Now we can divide 3 by 2 to get our answer, which is 1.5. :)
152.5 is 250% of the number, 61
