Question

The cost of a slice of banana cake is t cents. The cost of a slice of chocolate cake is (t + 5) cents. The total cost of 7 slices of banana cake and 11 slices of chocolate cake is 2215 cents. Find the value of t.​

Answer 1

Answer:

Okay

7+11(t+7)=2215

7+11t(77)=2215

7+11=18

18t(77)=2215

Transpose 77 to RHS

18t= 2215-77

= 2138

Divide 18 on both sides

18t÷18= 2138÷18

= 118.77777777777

T=118.77777777777

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Answer 2

Answer:

Given :

Cost of a slice of banana cake = t cents • Cost of a slice of chocolate cake = t + 5 cents

• Sum of prices of 7 banana cakes and 11 chocolate cakes is 2215 cents

✩ To Find :

. The value of t

✩ According to the question :

7t + 11 (t+5) = 2215 cents

✩ Solution :

7t + 11(t + 5) = 2215

7t + 11t = 2215 55

18t = 2160

2160

18

Therefore, the value of t is

t=

= 120

: →

120 cents