3+c - (4+c)
pretend that there is a -1 in front of the bracket
3+c-1(4+c)
multiply the bracket by -1
(-1)(4)=-4
(-1)(c)=-c
3+c-4-c
3-4+c-c ( combine like terms)
+c-c=0
3-4=-1
-1+0=-1
Answer:
-1
=21x + 35y + 4y
= 21x + 39y
20 golf balls can fit in the can.
<u>Step-by-step explanation:</u>
Given:
Height (h) = 10 Inches
Volume of 15.625 Pi inches cube.
To Find:
How many balls can be filled in that can.
Solution:
Diameter of the golf ball [as per standard value] = 1.68 in
Radius of the golf ball =
Volume of the golf ball =
=
=
Volume of the can =
Now we have to divide the volume of the can by the volume of the golf ball, we will get = balls
Thus we can conclude that approximately 20 balls can be filled in that can.
Answer:
B
Step-by-step explanation:
radius: diameter/2 = 3 /2 = 1.5 in
new height = 3.5 - 0.5 = 3 in
V = radius^2 x 3.14 x height = 1.5^2 x 3.14 x 3 = 21.2 in^3
Let n be the man's walking rate. Then:
9/n+9/27=3&1/3
243+9n=90n
243=81n
n=3
The man's walking rate was 3 mph
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