Answer:
B. (-2,-4)
Explanation
Given equations:
y = 3x + 2
y = -2x - 8
Solving both equations will yield the values of x and y;
Solution:
y = 3x + 2 ----- (i)
y = -2x - 8 ------ (ii)
Using substitution method, input equation i, into ii
3x + 2 = -2x - 8
Collect like terms and solve;
3x + 2x = -8 -2
5x = -10
x = -2
Then put x = -2 into i, to find y
y = (-2 x 3) + 2
y = -6 + 2 = -4
So, the solution of the equation is B. (-2,-4)
Step-by-step explanation:
It's answer is x_> -27 by using inequality rule
0.5 cups of cheese
Amy: 1.6 divided by 8 = 0.2 cups of cheese per serving
Sarah: 2.5 divided by 10 = 0.25 cups of cheese per serving
0.25 - 0.2 = 0.5
Answer: The total cost is 
assuming the cost for 1 adult is 
and the cost for 1 child is 
Step-by-step explanation:
Assuming the cost for 1 adult is and the cost for 1 child is :
and 
Then the expression that gives the total cost 
is solved as:
Answer:
9
Step-by-step explanation:
10-2×3+5
10-6+5
4+5
9
