Answer:
He gets 32, $10 bills.
Step-by-step explanation:
He puts in $630.
3 times $50 equals $150.
8 times $20 equals $160.
$150 plus $160 equals $310.
$630 minus $310 equals $320.
$320 divided by 10 equals 32.
So he gets 32, $10 bills.
3. 5/12 * 4/9 = 5/27
4. x - 2 2/5 = 5 13/20
x - 12/5 = 113/20
x = 113/20 + 12/5
x = 113/20 + 48/20
x = 161/20 or 8 1/20
Step-by-step explanation:
(a^2+3b)/(c-2d)
substitute a=3,b=8,c=2,d=5
(3^2+3(8))/(2-2(5))
=(9+24)/(2-10)
=33/(-8)
=-4.125
Answer:
6/24
Step-by-step explanation:
9514 1404 393
Answer:
1 : 6
Step-by-step explanation:
The given scale factor is ...
2 in : 1 ft
To express this as a ratio of pure numbers (without units), the units must be the same on either side of the colon (:). Here, we can make that happen by changing 1 ft to its equal in inches: 12 inches.
2 in : 1 ft = 2 in : 12 in = 2 : 12 = 1 : 6
We generally like to have the scale factor reduced to lowest terms, so we want to remove any common factors from the numbers.
The scale factor of 2 in to 1 foot is 1 : 6.