You need a 25% alcohol solution. On hand, you have a 45 mL of a 15% alcohol mixture. You also have 30% alcohol mixture. How much of the 30% mixture will you need to add to obtain the desired solution?

Write the ratio as a fraction in simplest form. 21 to 12 =

A car travel 300 km 6 hours what is average speed of car

Jayden has a collection of 800 baseball cards and his brother Dylan has a collection of baseball cards that is 1/10 as large. How many cards does Dylan h.

Ariel recorded the number of e-mails she received each day for 7 days. The results are listed below. 15, 17, 17, 19, 24, 24, 24 What is the mode of the numbers of e-mails Ariel received for the 7 days? A. 17 B. 19 C. 20 D. 24

Determine whether w = 1.8 is a solution to the equation 9.5 = w/0.2

Consider the region bounded by x2 + y2 = 64 with x ≥ 0, and y ≥ 0 . A solid is created so that the given region is its base and cross-sections perpendicular to the x-axis are squares.

Write and solve an equation for the relationship described below. Four times a number plus three is the same as five plus the number.

A kids skipping rope is 7ft long. How many ropes could I cut from a 10 yard long piece of rope?

How likely is it that you will land on a yellow space? A) certain B) impossible C) probable D) unlikely

The volleyball team sold 16 items on the first day of a bake sale, 28 items the second day, and 12 items the last day. There were 4 items left that had not been purchased. How many total items were for sale at the bake sale?