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Kensington City Cafe recently introduced a new flavor of coffee. They served 28 grande cups
and 33 jumbo cups of the new coffee today, which equaled a total of 1,207 ounces. The day,
before, 28 grande cups and 53 jumbo cups were served, which used a total of 1,667 ounces.
How much coffee is required to make each size


Sagot :

Answer:

jumbo 23 oz, grande 16 oz

Step-by-step explanation:

Use g for grande and j for jumbo

The first equation: 28g + 33j = 1207

The second equation: 28g + 53j = 1667

Subtract the first from the second

   28g + 53j = 1667

-   28g + 33j = 1207

Equal 20j = 460

j = 23

Put 23 in for j in either equation and solve for g:

28g + 33(23) = 1207

28g + 759 = 1207

28g = 448

g = 16