Answer:
(a)
(b)
Bag of popcorn = $6
Candy = $5
Step-by-step explanation:
Given
Jackson: x = 8; y= 2; Total = 58
Cooper: x = 4; y= 5; Total = 49
Solving (a): System of equation
For Jackson:
This is done by multiplying each variable by the quantity.
Same will be applied to Cooper's purchase:
Cooper:
Solving (b): Price of 1 bag of popcorn and 1 candy
This implies that we solve for x and y
----- (1)
-------- (2)
Multiply the second equation by 2
-------- (3)
Subtract the (1) from (3)
Solve for y
Substitute 5 for y in (1)
Solve for x
This implies:
Bag of popcorn = $6
Candy = $5
Answer:
Option D = 144
Step-by-step explanation:
First, you are not putting the expression correctly. I'm assuming you are mean to say (ab)². This is because if you want to multiply by 2, the 2 usually goes first like this 2ab. But it's not case, so, it should be as I said.
Now, let's replace the values for a and b into the expression:
(ab)² = (4 * 3)² = (12)² = (12*12) = 144
That's is why is option D.
If you have two negatives they cancel each other out and make a positive. The same if you have to positives the product will be positive. If you have a negative and a positive you multiply the numbers and bring down the negative. Same if you have a positive and a negative. Only two negatives cancel each other out, same with positives. For example -4(-5)(-1) you would use order of operations, 4 and the 5 cancel each other out and you multiply 20 by -1 which is -20 since you bring down the negative.
Answer:
789
Step-by-step explanation:
8679/789 = 11
