Steve saw 313 birds during a bird-watching trip to Yellowstone National park. He observes 15 more trumpeter swans than sandhill cranes. He saw twice as many mountain chickadees as ducky grouses. How many birds of each type did steve observe if he saw half as many trumpeter swans than ducky grouses?

15 bbb

Step-by-step explanation:

you add them to 8

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walter needs to make at least 5 more cookies but no more than 40. 5 ≤ x ≤ 40

step-by-step explanation:

20 ≤ x + 15 ≤ 55

subtract 15 from all parts

20-15 ≤ x + 15-15 ≤ 55-15

5 ≤ x ≤ 40

this means how many more cookies he has to make

walter needs to make at least 5 more cookies, but no more than 40 cookies; 5 ≤ x ≤ 40