81+86+89+96 equals an average of 88. If she wants an average of 90 she needs to score a 93 and 96 on the next two tests.
Answer:
26
Step-by-step explanation:
20-10 X (5-3)+6
=10 X 2 + 6
=20+6
=26
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Answer:
339π in³
Step-by-step explanation:
The amount of water is the difference between the volume of the cylinder and the volume of the ball. The appropriate volume formulas are ...
cylinder V = πr²h
sphere V = (4/3)πr³
For the given numbers, the volumes are ...
cylinder V = π(5 in)²(15 in) = 375π in³
sphere V = (4/3)π(3 in)³ = 36π in³
The water volume is the difference of these ...
water volume = cylinder V - sphere V
= 375π in³ - 36π in³ = 339π in³
Answer: 2/7, 2 : 5, 2 to 5
Step-by-step explanation:
7 is the total
5 is white
2 is grey
2/7 is 2 out of 7 since 2 is grey
2 : 5 is 2 grey for 5 white
2 to 5 is the same thing as 2 : 5
