61/5
multiply the 12 and the one on the bottom and then add the one on the top..
or do u mean
__1
12---
__5
Answer:
<u>There are 24 orange balls and 130 green balls in the box.</u>
Step-by-step explanation:
Let orange balls be x and green balls be y.
y = 10+5x
x+y = 154
y = 154-x
Now,
y=10+5x
or, 154-x = 10+5x
or, 154-10 = 5x+x
or, 144 = 6x
so, x = 24
Now,
y = 154-x
or, y = 154-24
so, y = 130
Answer:
a = 70
Step-by-step explanation:
a = h * b / 2
a = 10 * 14 / 2
a = 140/2
a = 70
Answer:
15
Step-by-step explanation:
Depth of well = No. of turns × length of one turn
Given: Depth of well = 9.89m = 989cm [1m = 100cm]
Let number of turns be x
Length of one turn = 2πr or π×diameter
Now , 989=x×π×21
989=x×(22/7)×21
x=989×7/(22×21)
x=14.98 ≈15 turns
[Number of turn never be in decimals]
Hence number of 15 complete turns of the handle required to bring up the bucket
Let julia's age be x
Let Kara's age be 4x
x+4x=13
5x=13
x=13/5
2.6 years