30 students do not go on the bus. Since 50would be 100%, 20% would be equal to 8. So 20 students take the bus and 30 students do not take the bus.
Answer:
<h3>
1.50X+2.50Y=25</h3><h3>
&</h3><h3>
X+Y=6 are required systems</h3>
(Solution: X=16 and Y=-10)
<u>Explanation:</u>
》Total money that will be spent on flour and corn meal altogether(T)
=$25
》Since it is not mentioned that whether corn and flour are bought in same quantity or not, we will assume them of different quantity.
i.e.,Suppose
》<u>X pound </u>of <u>flour</u> is bought
&
》<u>Y pound </u>of <u>corn</u> is bought.
So,
》Cost of flour(F)=$1.50X
》Cost of corn(C)=$2.50Y
So total cost will be sum of cost of flour and corn altogether,
Writing it in equation(linear),
<u>F+C=T</u>
<h3>
<u>1.50X+2.50Y=25</u></h3>
Also,
Total pounds=6
ie,
<h3>
<u>X+Y=6</u></h3>
Answer:
D
Step-by-step explanation:
I'm not sure if the quiz already passed because this was an hour ago, but here is the answer.
Answer:
b
Step-by-step explanation:
You define a function f(x) which gives the cost of buying x packages of cookies. You are asked for the domain of the function. That is, what values can x take on? x is the number of packages bought.
It makes no sense to buy a negative number of packages. It also makes no sense to buy 1/2 a package or 3/4 of a package as the store won’t sell you a fraction of a package. Try going to the store and buying half a package of oreo cookies. I doubt you’ll get very far :)
So it makes sense to buy 0, 1, 2, 3, 4, ... boxes of cookies. These are whole numbers. So the domain is the set of whole numbers. You could also write the domain like this {0, 1, 2, 3, ...} making sure to use the curly brackets as those denote a set.