Other slides in this set

Slide 2

Preview of page 2

Here's a taster:

KEY WORD
simultaneous
means at the same time.
simultaneous
equations
are equations that are true
at the same time.…read more

Slide 3

Preview of page 3

Here's a taster:

Writing word problems as two simultaneous
equations
Three apples and one strawberry cost £3.70.
Two apples and one strawberry cost £2.50.
1. How could you write this information as two
equations? (Hint: use a for apples and s for
strawberries.)
2. Explain why the equations are simultaneous.
3. Work out the prices of the two fruit. Explain your
method.…read more

Slide 4

Preview of page 4

Here's a taster:

Solving the equations
3a + s = 370 (Equation 1)
2a + s = 250(Equation 2)
a = 120 (Subtract the two equations
from each other or ask "How much
extra cost does the extra apple add?)
So s = 250 - 2a = 250 - 240 = 10
Check using Equ 1: 3 x 120 + 10 = 370…read more

Slide 5

Preview of page 5

Here's a taster:

Pears and cherries
p stands for pears and c for cherries.
Two pears and one cherry cost £3.25.
Two pears and four cherries cost £3.40.
1. Write this information as two equations.
2. Work out the prices of the two fruit. Explain your
method.…read more

Slide 6

Preview of page 6

Here's a taster:

2p + c = 325 (Equation 1)
2p + 4c = 340 (Equation 2)
3c = 15 (Subtract the two equations
c=5 from each other or ask "How
much extra cost do the extra
three cherries add?)
So 2p = 325 - c = 325 - 5 = 320
and p = 320 ÷ 2 = 160
Check using Equ 2: 160 x 2 + 4 x 5 = 340…read more

Slide 7

Preview of page 7
Preview of page 7

Slide 8

Preview of page 8
Preview of page 8

Comments

No comments have yet been made

Similar Mathematics resources:

See all Mathematics resources »See all resources »