Answer:
This is the commutative property of multiplication.
Step-by-step explanation:
We know this because that property states that it does not matter what order the numbers are multiplied together, as long as they are all being multiplied. So even though the numbers change on both sides, it does not affect the answer.
The answer would be D. 18/6. We can figure this out because in the question, it says that each shape is worth one whole. There are three shapes so that means when added, the sum is 3 and 18/6, when reduced is 3.
I hope this helped! :-)
Step-by-step explanation:
So, the variable x can not represent adults and students because they tell us that 45 are clearly students.
<span>3x+5y=2 (1)
9x+11y=14 (2)
multiply equation (1) by 3
9x + 15y = 6
so
</span>9x + 15y = 6 (1')
9x + 11y =14 (2)
-------------------------subtract
4y = -8
y = -2
3x+5y =2
3x+5(-2) =2
3x - 10 = 2
3x = 12
x = 4
answer
(4, -2)
Answer:
$6.00
Step-by-step explanation:
2(1.75)+2.50=6
