Do a proportion.
5/32= x/800
Cross multiply and divide
800 x 5= 4,000
4,000 divided by 32= 125
So answer is 125 students
-12.6 as a percent is -1260%
Answer:
234
Step-by-step explanation:
So what we know is that
5x+9x= students
This equation is saying that for every 5 boys there are 9 girls
we can then plug in 364 for the number of students and add like terms
This means that 14x=364
this means that x=26
This means that there are 26 sets of 5 boys and 9 girls
this means that there are
130 boys
234 girls
You don't have enough math yet to be able to derive the formulas,
so you just have to memorize them:
Area of a circle = (pi) x (radius of the circle)²
Area of a square = (the length of one side of it)²
You may think you can't memorize them, but that'sexactly
what homework is for.
Take ten circles of different sizes and find the area of each one.
Then take ten squares of different sizes and find the area of each one.
You'll remember the formulas for the rest of your life. I guarantee it.
In fact, I'd be very surprised if you're in high school math now and you haven't
already done this for homework.
Let me rephrase that: I'd be very surprised if you're in high school math now
and this hasn't already <em>been assigned</em> as homework.
