Amixture contains forty ounces of glycol and water, and it is ten percent glycol. the mixture is to be strengthened to twenty-five percent by adding glycol. how much glycol is in the original mixture?

4 oz
10 oz
40 oz

Use the elimination method to solve the system of equations -x+5y=-4 and 4x+3y=16

If 1 is divided by the sum of y& 4.the result is equal to 3 divided by 4, find the value of m

The average human heart beats 1.15 \cdot 10^51.15⋅10 5 1, point, 15, dot, 10, start superscript, 5, end superscript times per day. there are 3.65 \cdot 10^23.65⋅10 2 3, point, 65, dot, 10, start superscript, 2, end superscript days in one year.how many times does the heart beat in one year? write your answer in scientific notation, and round to one decimal place.