What about the grandfathers age??
Ace's grandfather is 3 years older than Ace's grandmother. Their combined age is 121 years. How old is each?
A girl is three years older than her brother. If their combined age is 35 years, how old is each?
A metal object with a mass of 19g is heated to 96 degrees celcius, then transfered to a calorimeter containing 75 g of water at 18 degrees celcius. The water and metal object reach a final temperature of 22 degrees celcius. What is the specific heat of this metal object?
a 20.0ml sample of HCL solution is placed in a flask with a few drops of indicator. If 30.0ml of a 0.240 M NaOH solution is needed to reach the endpoint, what is the molarity of the HCL solution?
intensive for #20
Determine the hydronium ion concentration in a solution that is 0.00018 M Ca(OH)2. Answer in units of M
5th Grade Math
dont know dont understand
his expression showed how highly he valued his own opinions and scored the view of the others. smug?
The first sample had 49 subjects and 7 had blue eyes. The second sample had 465 subjects and 244 of these had blue eyes. What is the value of the pooled estimate of the proportion used to test the hypothesis that the population proportions of blue eyes are equal?