The least common denominator for 5 and 7 is 35
Answer:
You bake 21 chocolate chip cookies.
Step-by-step explanation:
Since the ratio of chocolate chip to oatmeal is 7:5, the ratio is now ?:15. You multiplied the number of oatmeal cookies by 3, which means you must now multiply the number of chocolate chip cookies by the same number. 7 times 3 is 21.
Answer:
A) $2.42, $2.33, $2.58
B) The cheapest deal is 24 for $56
Step-by-step explanation:
4(9) + 3s = 75
36 + 3s = 75
3s = 39
s = 13
(5x-7)2 + 140x
= 25x2 - 70x + 14 + 140x
= 25x2 + 70x + 14
= (5x+7)2
