Given that, the ratio of girls to boys in class is 9 to 7.
Let's assume there is 9x girls and 7x boys in the class.
There is total of 80 students which means sum of 9x and 7x must be equal to 80. So, we can set up an equation as following:
9x + 7x = 80
16x = 80 Combine the like terms.
Divide each sides by 16 to isolate x.
So, x = 5
Since there is 9x girls in the class. So, next step is to substitute x=5 in 9x to get the number of girls in the class. Therefore,
9x = 9(5) =45.
Hence, there is 45 girls in the class.
Remember that there are 16 cups in a gallon.
The pipe leaks 1.5 cups each day, so in one week, or 7 days, the cup leaks 1.5 times 7 cups, which equates to 10.5 cups per week.
To find this number in gallons, divide 10.5 by 16.
This equals .65625 gallons per week.
Hope this helps!
~Chrys
Answer:
13/200
Step-by-step explanation:
<em>so we grab the fraction:</em>
6 1/2%
<em>make it a decimal instead of a fraction</em>
6.5%
<em>divide it by 100 to get</em>
6.5/100
<em>and multiply it by 2 because decimals have no place inside fractions lol</em>
13/200
Answer:
relatively prime. Two integers are relatively prime (or coprime) if there is no integer greater than one that divides them both (that is, their greatest common divisor is one). For example, 12 and 13 are relatively prime, but 12 and 14 are not.
Step-by-step explanation:
Answer=9
This question is asking how many times can 4 go into 36. Basically 36/4
36÷4=9
36 is 9 times greater than 4