Answer:
Step-by-step explanation:
Total money Wei has = $150
Each blue balloon costs = $0.60
Let the number of white balloons be = x
Each white balloon costs = $0.30
Now Wei purchased 100 blue balloons and have $150 to buy both balloons.
So, money spent on blue balloons is =
Amount spent on white balloons is = 0.30x
So, for the total cost, the equation that can be used is :
Upon solving this we get,
x=300
Hence, Wei can buy 300 white balloons.
Answer:
9 2/3
Step-by-step explanation:
50=6a-8
+8 +8
58=6a
/6 /6
9 2/3=a
pi over 8
negative 8 over pi
negative pi over 8
Answer:
see below
Step-by-step explanation:
In the attachment, the points are listed in the order given in the problem statement. (They are listed to the right of the "rotation matrix", with x-coordinates above y-coordinates.)
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I really don't like to do repetitive calculations, so I try to use a graphing calculator or spreadsheet whenever possible. Angles are measured CCW.
As always, the rotation transformations are ...
180° — (x, y) ⇒ (-x, -y)
270° — (x, y) ⇒ (y, -x)
does that mean i have to put 25 to the second power or square root it