Answer:
x = 63/2
Step-by-step explanation:
x
/3 = 21
/2
3 . x/3 = 3 . 21/2
x = 63
/2
Answer:
56 total
Step-by-step explanation:
Let the number of girls = x
Let the number of boys = 3x
x 1
=== = ==========
x + 28 3
Cross multiply
3x = x + 28 Subtract x from both sides
3x - x = 28 Combine
2x = 28 Divide by 2
x = 28/2
x = 14
Girls = 14
Boys = 14 + 28 = 42
Is the ratio 3 to 1?
42/14 = 3/1 Yes it does
Total number
14 + 42 = 56
M=16
16-9=7
hope this helped:)
Answer:
Step-by-step explanation:
We multiply 4/5 times 3/1 to find how many miles the penguins swam in one hour.
4 x 3/5 x 1
12/5
The penguins swam 12/5, or 2 and 2/5 miles in one hour.
Table:
Miles 4/5 12/5
Hours 1/3 1
Answer: 30 students in each bus.
Step-by-step explanation:
99 students - 9 students = 90 students
30 students × 3 buses = 90 students
