Answer:
3120 m³
Step-by-step explanation:
Step-by-step explanation:
Let assume that
Cost of 1 burger = $ x
Cost of 1 doughnuts = $ y
According to statement, 9 burgers and 1 doughnut cost $ 31.30


According to statement again, 3 doughnuts and 6 burgers cost $ 26.70



On substituting the value of y from equation (1), we get





So,
Cost of 2 burgers = 3.2 × 2 = <u>$ 6.4</u>
Answer:
me puede ayudar este deber
Answer: no
Step-by-step explanation:
If you do the proportion, you have to put 1/5 = 20/100. The 20 represents the percentage. Then you have to say to yourself that how many time 5 goes to 100, well its x20 then if we multiply 1 x 20 we'll get 20. So, he is correct, 1/5 = 20%. Remember what number we think of when we hear the word percent, the number is 100.