Cross multiply: 20 * b = 45 * 34
Simplifying: 20 * b = 45 * 34
Multiply 45 * 34: 20b = 1530
Solving: 20b = 1530
Solving for variable 'b'.
Move all terms containing b to the left, all other terms to the right.
Divide each side by '20': b = 76.5
Simplifying: b = 76.5
The first one is A,B,and D because for A a function on a graph rises from left to right.B because the input or x is not repeating so just remember that too many x's ain't right but more than one y or output is okay.D because each x is not repeating which is a no no in functions.The second question is the first one is a function and the rest no because the first one none of the x or repeating the other ones their x in their data set is repeating.
The easiest way to solve for this is to first find out how many he has sold right now. The way to find it is to divide the total amount of money (301) by the amount of each cup. (301/3.50) That should be equal to 86 cups. Now, you want to find the rest he needs to sell. The easiest way is to divide the number you want (371) by the number of each cup (371/3.50) That should be equal to 106. Since you want to know how many more he needs to sell you now need to subtract them. (106-86) That is equal to your answer, 20.
Answer:
4x=104
x=104/4
x=26 2nd
x-9=17 1st
2(x-9)=<u><em>34 3rd</em></u>
Step-by-step explanation:
3x-x+2=4
Hope This Helps! I think the answer is right
