jacobsplashmaster jacobsplashmaster

13-03-2017
Mathematics

contestada

A chemist needs a 70% solution of tannic acid. How much distilled water must he add to 5 gallons of a 90% solution of acid to obtain the 70% solution?

Respuesta :

jason1141 jason1141

13-03-2017

4.5 + 0 = 3.5 + 0.7x
1 = 0.7x
x = 1/0.7
x = 1.43 gallons of distilled water

Answer Link

Otras preguntas

Assume that a randomly selected subject is given a bone density test. Those test scores are normally distributed with a mean of 0 and a standard deviation of 1.

I need help with this one

A box of Lucky Charms costs $3.29 and you have a coupon that will save you 75 cents off 2 containers. What is the final price if you buy 2?

Sarah completes 1/6 of a project in 1/4 of an hour at this rate how much of the project does Sarah complete per hour? Sarah completes blank of the project per h

A cylinder that is 4 high and 12 across. what's the volume? Help please

what is the answer to this im having trouble figuring it out

The inputs of two registers R0 and R1 are controlled by a 2-to-1 multiplexer. The multiplexer select line and the register load enable inputs are controlled by

A bag contains 3 black balls and 5 white balls. Paul picks a ball at random from the and replaces it back in the bag. He mixes the balls in the bag and then pic

Juan is 5 and his mom is 35. In how many years will Juan's mom be 3 times Juan's age?

The diagram below is divided into equal parts. Which shows the ratio of unshaded section to shaded sections