Answer:
8
Step-by-step explanation:
let the ratio constant be 'x'
=> 2x:3x
sum = 2x + 3x = 5x
Total number of boys
=>(2x/5x)20 = 8
Answer:
7/5 y --> y+ 2/5y
0.68y --> y - 0.32y
3/5y --> y - 2/5y
1.32y --> y+ 0.32y
Step-by-step explanation:
Pretend there is a 1 in front of each y that doesn't have a number (coefficient) in front of it. 1 = 5/5, and then just solve for the fraction expressions.
Answer:
x= 3/5 or x=7/5
Step-by-step explanation:
|5x-2|=5
5x-2=5
5x=3
x=3/5
or
5x-2=-5
5x=7
x=7/5
Answer: Arithmetic
Step-by-step explanation:
The numbers in the sequence decrease by 7 each step. Just subtracting.
4x10= 40 sweets. (Paul)
1x 10= 10 sweets. (Fiona)
3x10=30 sweets (pip)
40+10+30= 80
80 sweets all together.