Answer:
15
Step-by-step explanation:
First do, 30% + 45% = 75%. Then do, 100-75=25.
Lastly,
proportions:
x/60 = 25/100
So your answer is, 15.
Point E is correct answer
The rate is 1km/15min
It's a fraction where the denominator is 15 minutes.
To make it a unit rate, we need to make the denominator 1.
A unit rate would be 4 km / hour.
Area of triangle: A = bh/2
Solve with the given values.
A = 4.5*2.25/2
A = 10.125/2
A = 5.0625
Round.
5.0625 -? 5.06
Best of Luck!
Answer: there are 24 girls.
Step-by-step explanation:
Let x represent the number of boys in fifth grade at lenape elemantary school.
In fifth grade at lenape elemantary school,there are 4/7 as many girls as there are boys. This means that the number of girls in the school would be
4/7 × x = 4x/7
There are 66 students in fifth grade. This means that
x + 4x/7 = 66
Cross multiplying by 7, it becomes
7x + 4x = 462
11x = 462
x = 462/11
x = 42
The number of girls would be
66 - 42 = 24
