Math 1 22 Feb

To build the garden of your dreams you need 8 m³ of soil containing 85% silt. You have two types of soil you can combine to achieve this: soil with 40% silt and pure silt. How much of each soil should you use?

A metallurgist needs to make 15 oz. of an alloy containing 74% copper. She is going to melt and combine one metal that is 35% copper with pure copper. How much of each should she use?

Fruit salad which costs $5/kg is made by combining sliced peaches which cost $8/kg with sliced bananas which cost $4/kg. Find the number of kg of sliced peaches and sliced bananas required to make 16 kg of fruit salad.

Write down the coordinate pairs of the two points you see in this image. Move on to the next slide to watch the video example of how to solve this problem.

Write down the coordinate pairs of the two points you see in this image. Move on to the next slide to watch the video example of how to solve this problem.

Working alone, Nicole can mop a

warehouse in four hours. Ashley can mop the same warehouse in eight hours. Find how long it would take them if they worked together. Round to the nearest tenth.

It takes Scott six minutes to sweep a

porch. Kim can sweep the same porch in five minutes. Find how long it would take them if they worked together. Round to the nearest tenth.