Answer:
There are 280 6th grade students at Dutchtown middle
Step-by-step explanation:
In this question, we are asked to
calculate the number of students at Dutchtown middle.
Firstly, let the number of students be x.
From the question, 45% of this number which equals 126 went to the Valentine’s dance.
Mathematically, this can be represented as follows;
45/100 * x = 126
45x = 126 * 100
45x = 12,600
x = 12600/45
x= 280
Answer:
a
Step-by-step explanation:
a because a is the best
Let x = greater number
y = smaller number
(1)
![x = y + 6 ](https://tex.z-dn.net/?f=x%20%3D%20y%20%2B%206%0A)
(1)
![y = x-6](https://tex.z-dn.net/?f=y%20%3D%20x-6)
(2)
![x^{2} + y^{2} = 90](https://tex.z-dn.net/?f=%20x%5E%7B2%7D%20%2B%20y%5E%7B2%7D%20%3D%2090)
We'll substitute y in (1) to (2)
(2)
![2(x - 9)(x + 3) = 0](https://tex.z-dn.net/?f=2%28x%20-%209%29%28x%20%2B%203%29%20%3D%200)
x - 9 = 0 or x + 3 = 0
x = 9 x = -3
and
y = x - 6 y = x - 6
y = 9 - 6 y = -3 - 6
y = 3 y = -9
Therefore, the two numbers can be 9 and 3 or -3 and -9.
Answer:
D 9 softball tickets for $72
Step-by-step explanation:
72/9=8