A biology teacher has 15 milliliters of a salt solution that is 65% salt. How many milliliters of water must the teacher add to make a solution that is 25% salt?

Use a z-Table to find the specified area. To the right of z = - 1.82 a. 0.0344 b. 0.4656 c. - 0.0344 d. 0.9656

Gilda drove 650miles at an average speed of 50 miles per hour. how many miles per hour faster would she have had to drive in order for the trip to have 1 hour less?

Write standard form of 400,000+30,000+4,000+50

Eighty-seven decreased by three times a number is greater than one hundred sixty-five

A rectangular plot of farmland will be bounded on one side by a river and on the other three sides by a single-strand electric fence. With 800 meters of wire at your disposal, what is the largest area you can enclose, and what are its dimensions?

Alicia cashed half of her paycheck and set aside the other half to take her friends out to dinner. She spent $42.15 on dinner and brought home more than $20.00.

How do you find 10% of a whole number?

If y varies directly as x, and y is 6 when his 72, what is the value of y when is 8

Substitute t=3 and t=5 to determine if the two expressions are equivalent

X + 13 = 7x+1 Solve for x and show steps