Answer:
(E) 450
Step-by-step explanation:
Let x represent the number of gallons of solution X that must be added to the mix. Then the amount of sugar in the mix is ...
0.20x +0.40·150 = 0.25(150 +x)
0.20x +60 = 37.5 +0.25x . . . eliminate parentheses
22.5 + 0.20x = 0.25x . . . . . . subtract 37.5
22.5 = 0.05x . . . . . . . . . . . . . subtract 0.20x
450 = x . . . . . . . . . . . . . . . . . . multiply by 20
450 gallons of solution X must be added to make a 25% sugar solution.
Answer:
259 students
Step-by-step explanation:
First, find how many will check out science fiction books
350(0.14)
= 49
Find how many will check out sports books
350(0.12)
= 42
Subtract these amounts from 350
350 - 49 - 42
= 259
So, she should expect 259 students not to check out science fiction and sports books
Answer:
100
Step-by-step explanation:
Domain : (1,2,3........)
range: (510, 520, 530........)
domain: its like input of the function. like in this function of k(x)
x is miles and miles can't be negative so negative number can't be input of this function. just ask what are all the possible value that x can take
Range is output of function.
like: k(1)= 510 and so on
what comes out (the Range) depends on what we put in(the Domain)
Range should have single value.
Answer: 1. In a grocery store 2. in architecture 3. in cooking 4. In factories 5. banking
Step-by-step explanation:
cebause...