Alright so one dozen cookies is 12 cookies. So 40 dozen cookies is 480 cookies (40x12). If there’s 157 students then u divide 480 by 157 which gets u 3.06 cookies per person
Answer:<em> 10 miles</em>
Step-by-step explanation:
<em>Mile 1: 3.00</em>
<em>Mile 2: 3.50</em>
<em>Mile 3: 4.00</em>
<em>Mile 4: 4.50</em>
<em>Mile 5: 5.00</em>
<em>Mile 6: 5.50</em>
<em>Mile 7: 6.00</em>
<em>Mile 8: 6.50</em>
<em>Mile 9: 7.00</em>
<em>Mile 10: 7.50</em>
Answer:
c
Step-by-step explanation:
choice A means
choice B means
choice C means which is the answer
choice D means
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Answer:
D. (-3, -2)
Step-by-step explanation:
The equations have different coefficients for x and y, so will have one solution. The solutions offered are easily tested in either equation.
Using (x, y) = (-2, -3):
x = y -1 ⇒ -2 = -3 -1 . . . . False
Using (x, y) = (-3, -2):
x = y -1 ⇒ -3 = -2 -1 . . . .True
2x = 3y ⇒ 2(-3) = 3(-2) . . . . True
The solution is (-3, -2).
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If you'd like to solve the set of equations, substitution for x works nicely.
2(y -1) = 3y
2y -2 = 3y . . eliminate parentheses
-2 = y . . . . . . subtract 2y
x = -2 -1 = -3
The solution is (x, y) = (-3, -2).
