Video: GCSE Mathematics Foundation Tier Pack 4 β€’ Paper 3 β€’ Question 2

GCSE Mathematics Foundation Tier Pack 4 β€’ Paper 3 β€’ Question 2

01:42

Video Transcript

Eggs are sold in boxes and crates. Each box contains 12 eggs. Each crate contains 42 eggs. Josh buys 𝑏 boxes and 𝑐 crates of eggs. Write an expression for the total number of eggs that Josh buys, in terms of 𝑏 and 𝑐.

So if we actually want to find the total number of eggs that Josh buys and write an expression for it, then first, we’ll start with the boxes. So we know that each box of eggs contains 12 eggs. So therefore, the number of eggs that Josh gets in boxes is gonna be found by multiplying 12, the number of eggs in a box, by 𝑏, the number of boxes that he buys. And the way that we actually write that is 12𝑏 because we’re actually writing it using algebraic notation. We don’t need to include the multiply sign.

Next, if we actually want the number of eggs that Josh gets from crates, then we’ll work this out by multiplying 42, because that’s the number of eggs per crate, by 𝑐, because that’s the number of crates that he buys. And again, we don’t need to write 42 multiplied by 𝑐. We can actually leave the multiply sign out and just right 42𝑐. So therefore, we can say that an expression for the total number of eggs that Josh buys in terms of 𝑏 and 𝑐 is 12𝑏 plus 42𝑐.

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