Help me and show rough work please .
First question:A cup holds 150 millilitres. How many cups of tea can be poured from a full teapot which holds 1.5 litres?
2. Put in order of size, smallest first: 2.2, 2.22, 2.199
3. Mom bought two pillows and paid with a €20 note. If she got one euro change, how much did each pillow cost?
1. 1 litre = 1000 ml
2. 2.199, 2.2, 2.22
3. 20 - 2x = 1
Solve for x.
Sure, let's work on each question step by step:
First question:
We want to find out how many cups of tea can be poured from a full teapot that holds 1.5 liters.
1 liter is equal to 1000 milliliters. Therefore, 1.5 liters would be 1.5 x 1000 = 1500 milliliters.
Given that a cup holds 150 milliliters, we can divide the total volume of the teapot (1500 milliliters) by the volume of one cup (150 milliliters) to find the number of cups that can be poured:
1500 milliliters ÷ 150 milliliters = 10 cups
So, from a full teapot, you can pour 10 cups of tea.
Second question:
We need to put the numbers 2.2, 2.22, and 2.199 in order from smallest to largest.
To do this, we can compare the decimal places in each number.
Starting with the smallest decimal place, the numbers would be arranged as follows:
2.199, 2.2, 2.22
So, the order from smallest to largest is 2.199, 2.2, 2.22.
Third question:
Mom bought two pillows and paid with a €20 note. She received €1 as change.
To find out how much each pillow costs, we can subtract the amount of change she received from the total payment.
Total payment - Change = Cost of two pillows
20 euros - 1 euro = 19 euros
Since she bought two pillows, we divide the total cost by 2 to find the cost of each pillow:
19 euros ÷ 2 = 9.5 euros
Therefore, each pillow costs 9.5 euros.
I hope this helps! Let me know if you have any further questions.