Find the measure of angle a.
1 answer:
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1) 3x - 2y = -16 Subtract 3x from both sides
-2y = -3x - 16 Divide both sides by -2
y =
x + 8
2) 9x - 7y = -7 Subtact 9x from both sides
-7y = -8x - 7 Divide both sides by -7
y =
+ 1
3) x - 3y = 6 Subtract x from both sides
-3y = -x + 6 Divide both sides by -3
y =
- 2
-2y = -3x - 16 Divide both sides by -2
y =
2) 9x - 7y = -7 Subtact 9x from both sides
-7y = -8x - 7 Divide both sides by -7
y =
3) x - 3y = 6 Subtract x from both sides
-3y = -x + 6 Divide both sides by -3
y =
Answer:
10 people bought both strawberry and peach cones
Step-by-step explanation:
Given that there are two types of ice cream cones - strawberry and peach. You and 24 of your closest friends are going to buy ice cream cones.
Assuming that each one had atleast one ice cream we get
A - no of people bought straw berry
B - no of people bought peach cones
n(A) = 15 and n(B) =20
Hence we have
10 people bought both strawberry and peach cones