Answer:
112.5 mL
Step-by-step explanation:
Let x represent the amount of grape juice to add. Then the total amount of grape juice in the mix is ...
0.15(1800) +x = 0.20(1800+x)
270 +x = 360 + 0.2x . . . . . . eliminate parentheses
0.8x = 90 . . . . . . . . . . . . . . . subtract 270+0.2x
x = 90/0.8 = 112.5 . . . . . . . . divide by the coefficient of x
112 mL of grape juice should be added to make a mix that is 20% grape juice.
The answer is negative 6 and 3. It could also be positive 6 and negative 3.
, and . Subtract this from the numerator and you get a remainder of
, and . Subtract this from the previous remainder and you get a new remainder of
, and . Subtract this from the previous remainder and you get a new one of
, and . Subtract this from the previous remainder and you get a new one of
doesn't divide 120, so we're done, and putting everything together we've shown that
<span>To calculate how many pieces that can be cut, we calculate the number of 5 1/2 -inch pieces in 66 inches. To calculate this, we divide 66 by 5 1/2 (i.e. 66 divided by 11/2). 66 divided by 11/2 implies 66 multiplied by 2/11 = 132 / 11 = 12. Therefore, 12 pieces of 5 1/2 - inches pieces can be cut out.</span>
Answer:
Step-by-step explanation:
Since we know that a function gives exactly one output for a given input.
We can see that number of points in our diagram are 1,4 and 9.
These numbers represent a quadratic function as:
Therefore, we can represent these points in a function as , where x is number of points.