Answer:
y is equal to -1
x is equal to 4
Step-by-step explanation:
The first thing you would do is multiply the bottom equation by a negative 3. You will get - 6x - 9y = -15. Keep the top equation the same. Both of the 6x's cancel. You then get -11y = 11 so y is equal to negative 1.
Since you have Y, you can now plug that in to any equation to find the value of x. -6x - 2(-1) = 26. You're left with 4. Plug both of the values into each equation to double check.
Answer:
Step-by-step explanation:
Given : 
Solution:
Thus ,
Thus the solution is irrational since square root 7 does not have a perfect square and equal to 6+2square root of 14
Answer:
0.778
Step-by-step explanation:
Round up if this number is greater than or equal to 5 and round down if it is less than 5.
Answer:
B and C
Step-by-step explanation:
Since the price of one slice is B then 2 pieces has the price of 2B amd the total cost equals 2B+J
then to calculate the total cost for 7 days you have to multiply the cost for one day by 7 which is 7(J+2B) or if you expand that phrase you get 7J+14B
Answer:
D
Step-by-step explanation:
4(z+ 4) + 5 z = 2
4(2+4)+5
4(6)+5
24+5
=29
