Day Three Try these. 1


These are the top 6 bestselling apps in the app store: ƒ Instasnapz (IZ) €1.49 ƒ Homework Helper (HH) €3.50 ƒ Music Maestro (MM) €1.10


ƒ Style Diaries (SD) €1.89 ƒ Coding Conundrums (CC) €0.99 ƒ Mindfulness for Teens (MT) €2.99


Mum has given her 4 children a budget of €20 altogether to spend on apps. Work out how much each child wants to spend. Figure out if Mum’s budget is enough pay for these apps.


ƒ Brian: MT + HH + CC ƒ Seán: IZ + MM


ƒ Amy: SD + CC + MM ƒ Cathal: HH + IZ


Answer: Mum’s budget will cover the cost of these apps with € 2


Marks:


to spare. /3


Using your knowledge from other maths topics, can you work out what the following letters represent?


(a) d = 2r (b) a = l × w (c) v = l × w × h


3


Now that Lexi is in 6th Class, she is spending quadruple the time on her homework plus an additional 10 minutes compared with the time that she spent when she was in Junior Infants. If she spends 1 hour and ten minutes on her homework now, how much time did she spend on her homework in Junior Infants? Write a number sentence to show your work.


Marks: /3


Answer:


Write three word problems inspired by the formulae in question 2 above. Super Sleuth challenge


38 Today’s Marks: /8


Marks:


/2


Week 8 | Equations and Variables


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