Answer:
1) 500
2) 60
3) 24
4) 20
5) 6
6) 63
7) 35
8) 14
9) 15
10) 12
Step-by-step explanation:
First, find 10%
To find 10% of a number, just take off one zero, or move the decimal point back once.
So let's do #1
100% of 50
Find 10% of 50 = 5
Now we've found 10%, we still have 40% left (because it's 50%; 50-10=40)
Multiply 5 by 10
5 × 10 = 50
Let's do #7
60% of 70
Find 10% of 70 = 7
Multiply 7 by 5 (because its 60% and we've done 10%; 60-10=50)
7 × 5 = 35
:) hope i helped!
Answer:
612 - 23x
Step-by-step explanation:
distribute
Answer:
Step-by-step explanation:
Height doubles at every 30 seconds, so let's call n how many times it happens, and the t the total time:
n = t/30
If the height doubles one time, it is multiplied by 2, if it doubles 2 times, it's multiplied by 2², for n times, it is multiplied by 2ⁿ, so for an initial height equal to 3:
Y- y1 = m (x-x1)
y+1 = 4(x+3)
y+1=4x+12
y=4x+11
15 ft = 15*12 = 180 inches
180/4 = 45
so the scale is 1/45