Answer:
Question 1: D. 1 + 2 + 6/11
Question 2: 1. yes 2. no 3. no 4.yes
Question 3: 5/6 and 4/9
Question 4: C. 3 and 7/12
Question 5: A. 1 and 4/12 = 1 and 1/3
Step-by-step explanation:
Answer:
DEF or EAD or DEA
Step-by-step explanation:
this is because you can mix up the letters and it still be a different combination with the same answer.
its like multiplication 1 times 1 times 2 equals two whether the questions is asked 1 times 2 times 1 or 2 times 1 times one
hope this helps!
Answer:
decrease income
Step-by-step explanation:
income is already lower than expenses so lowering it further is the worst you can do out of all 4
Answer: No. The triangles are not congruent because their side lengths are different.
Step-by-step explanation:
Let's make some variables to represent the cost of the tables and chairs.
Let x be equal to the cost of one chair
Let y be equal to the cost of one table
The total cost for 3 chairs and 2 tables is $17.
3x + 2y = 17
The total cost for 8 chairs and 4 tables is $37.
8x + 4y = 37
Now we have our system of equations.
Let's solve it.
3x + 2y = 17
8x + 4y = 37
We can cancel the y's very easily. Then it would just leave us with the x's.
Multiply the top equation by -2.
3x(-2) + 2y(-2) = 17(-2) =
-6x - 4y = -34
Then add the equations together.
-6x - 4y = -34
8x + 4y = 37
=
2x = 3
Then just divide both sides by 2.
x = 1.5
Substitute 1.5 into one of the equation. I'll pick 3x + 2y = 17
3(1.5) + 2y = 17 ; Start
4.5 + 2y = 17 ; Multiply 3 and 1.5 together
2y = 12.5 ; Subtract 4.5 from each side of the equation
y = 6.25 ; Divide both sides by the coefficient of y. Which 2
So, a chair costs $1.50 and a table costs $6.25.
