Area = 2(Pi)rh + 2(Pi)r^2
r = 5
h = 45
Pi = 3.14
2(3.14)(5)(45) + 2(3.14)(25)
1413 + 157 = 1570
Answer: C
Answer:
10.6 and 9/10
Step-by-step explanation:
To better understand the expression let us reformat it as
-10.6+ (9/10) + (2/5)m - 2.4n + 3m
From the above expression we now have a better knowledge/ idea of how the constant terms
The constant terms are terms/numbers standing alone without an attached variable, they are independent.
The constants are
-10.6 and 9/10
Answer:
- x +y = 500
- 0.65x +0.95y = 0.75(500)
- solution: (x, y) = (300, 200)
Step-by-step explanation:
A system of equations for the problem can be written using the two given relationships between quantities of brass alloys.
<h3>Setup</h3>
Let x and y represent the quantities in grams of the 65% and 90% alloys used, respectively. There are two relations given in the problem statement.
x + y = 500 . . . . . . quantity of new alloy needed
0.65x +0.90y = 0.75(500) . . . . . quantity of copper in the new alloy
These are the desired system of equations.
<h3>Solution</h3>
This problem does not ask for the solution, but it is easily found using substitution for x.
x = 500 -y
0.65(500 -y) +0.90y = 0.75(500)
(0.90 -0.65)y = 500(0.75 -0.65) . . . . . . subtract 0.65(500)
y = 500(0.10/0.25) = 200
x = 500 -200 = 300
300 grams of 65% copper and 200 grams of 90% copper are needed.
Answer:top box will be 86
2nd box will be 192
3rd box will be 144
Step-by-step explanation:
24x8= 192 subtract that to 206 , equals to 14, bring down the 4 makes to 144
24x6= 144 subtract that by 144 ,equals to 0