Answer:
On the test its a I failed because I put b
Step-by-step explanation:
Answer:
at least 19
Step-by-step explanation:
Let t represent the number of trees Jacob needs to trim. He wants ...
50(45) +120t ≥ 4500
120t ≥ 2250 . . . . . . . . . subtract 2250
t ≥ 18.75
Jacob must trim at least 19 trees to earn at least $4500.
Answer:
work is shown and pictured
$439
$422.95
$385.89
To solve for 'b' when 'a' = 21 in a direct variation relationship where 'a' = 7 when 'b' = 2, first determine the constant of proportionality. Then, insert 'a' into the formula and solve for 'b'. The solution of 'b' would be 6.
In this scenario, we are given that a varies directly as b, which means we can state this relationship as a = kb, where k is a constant of proportionality. Initially, we're given that a = 7 when b = 2. From this, we can find that k = a / b, so k = 7 / 2 = 3.5. Therefore, our direct variation equation is a = 3.5b.
When a = 21, we can substitute this into the direct variation equation and solve for b. Thus, 21 = 3.5b, and by dividing both sides by 3.5, we can find that b = 6.
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